US2786660A - Apparatus for gasifying coal - Google Patents

Apparatus for gasifying coal Download PDF

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US2786660A
US2786660A US328477A US32847752A US2786660A US 2786660 A US2786660 A US 2786660A US 328477 A US328477 A US 328477A US 32847752 A US32847752 A US 32847752A US 2786660 A US2786660 A US 2786660A
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coal
nozzle
tube
gas
axial passage
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Carl E Alleman
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Phillips Petroleum Co
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/295Gasification of minerals, e.g. for producing mixtures of combustible gases

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  • This invention relates to the gasifi'cation of coal in underground formations. In one specific embodiment it relates to the method of making gas mixtures rich in hydrogen and carbon monoxide by the reaction of methane with steam, methane with carbon dioxide, or controlled partial oxidation of methane with air or oxygen.
  • the presentinvention is a solution to the difiiculties of the prior art by supplying streams of air or oxygen and/or steam or other gases or fluids at high pressures in the vicinity of the point at which the combustion is taking place so that said combustionor gasification of the coal may be v controlled. in such manner as to produce a better product uiithl'essexpense and difficulty.
  • flhe apparatus of the present invention provides for. moving the point of application of the high pressure fluids so that a progressive. process may be practiced enabling temperature control whichwillniaintain the temperature of reaction' at a level more nearly optimum to the desired reae: tions and thereby minimize the undesired reactions which occur.
  • O ne object of the present invention isto provide apparatu'sfor' theunderg'rou'nd gasification of coal. I i I v I.
  • Another object is topr'ovide such apparatus asisfparticularly useful in coal seamsf that are unprofitabletowork by ordinary mining methods, especially low grade coal, coal inthin seams, coal seams dipping sharply, gassy coal, coal, having a tendency to spontaneouscom bustion, coal having aihigh ash content ,.or.coal having other characteiistics making mining unprofitable How: ever, it should be undr'stood'that myrapparatus ispere, fectlyI capable ,of operation'in coalj'seamsf suitablelfon mining, and with proper development, it is an objectof my invention to provide means capable of competing with presentsyst'ems of mining coal; r I
  • a further object is' to provide apparatusand means for operating the same to'practice methods that will per: mit more complete recovery of coal in' situin the form of'valuable gases.
  • I I Y Another object is toflprovide suitable apparatus for gasifiyng coal underground.
  • Figure 1 is a cross sectional elevational view taken through? PO fthd earth' containinga coal seam showing apparatus embodying Certain aspects of the-pres ent, invention and, illustrating onefpoint inthe operation ofa' method embodying specific aspects of the presentinv ii i n
  • Figure 2 is a cross sectional view of one'formcf jet tube which is shown in Figurejl.
  • Figure 3 is a view similar to Figure 2 of a' second iYP, of jet tube which may be employed in the practice of thisinventi'on.
  • Figure 4 is a qu r ri 'awed e ev ti nal V ew; of a our form of jet, tube which'ma'y be employed in thep'rfacticc. of the presentinventio Figure 5 is" an" elevational view of't'ap' ed l" the jettubes of Figures 1 to 4, inclusive, when it is desired to modify direction of the jet action.
  • Figure 6 is a cross sectional view of a portion of the earth showing how the methods and apparatus of the present invention may be adapted to use in the deflected well.
  • Figure 8 is a cross sectional elevational view of a por tion of the earth showing a modified form of apparatus being employed in burning a hole in the lower portion of the coal seam.
  • a cross section of earth formations generally designated as 11 may contain non-productive earth formations 12 and 13 and a vein or seam of coal 14.
  • Coal seam 14 may be one that is either profitable or unprofitable to mine by conventional mining methods, as the present invention applies to either type of coal seam; however, the present invention has a special value when the coal seam 14 is of a type unprofitable to mine by conventional mining methods.
  • hole 16 has been drilled by any conventional method of drilling holes, or holes 16 may be burned into coal by methods to be discussed later.
  • Hole 16 may be in the center of the coal seam as shown but often it is preferably located in the lower portion of the coal seam as will be explained with relation to Figure 7 later in this disclosure.
  • Air or oxygen from tank 17, fuel gas from tank 18, and/or steam from boiler 19 in any combination or singly may be introduced into hole 16 through a pipe 21 as will be set forth later.
  • Pipe 21 comprises a jet nozzle portion 22, pipe sections 23 and valve connector sections 24.
  • the valve connector sections 24 are more fully illustrated in Figure 9.
  • Casing head 29 is provided with a product fiow line 33 which may have the usual pressure gauge 34.
  • Line 33 may lead through a suitable cut-off valve 36 into a gas holder 37 from which the gas may be withdrawn through a product line 38 controlled by valve 39 for use as fuel gas or as a reactant gas in a Fischer-Tropsch or other chemical process (not shown).
  • Gas holder 37 is shown with a conventional floating roof 41 but obviously any type of gas holder may be employed.
  • Gas (such as fuel gas) may be supplied from tank 18 through conduit 46 controlled by valves 47 and 48 and pressure regulator 49 to a manifold 51 from which it may be introduced into pipe 21 through either or both flexible hose 52 and 53 controlled by valves 54 and 56 all in the manner as will be more fully described with reference to Figure 9.
  • Boiler 19 may, of course, be supplied with all the usual equipment such as relief valve 61 and pressure gauge 62.
  • Figure 3 shows a modified type of jet nozzle '77 having radial jet 78 but also having axial jet 79 and other forwardly directed jets'81.
  • 77 is preferably made of steel or other material of considerable strength because jet 77 is employed in modified forms of my process in which the hole is burned into coal by the progress of jet 77 instead of having the hole 16 first drilled and jet 22 merely inserted and withdrawn in a preformed hole.
  • Figure 4 shows a third modification of a nozzle 82 pro-- vided with radial jet holes 83 and forwardly directed jet holes 84.
  • Surrounding nozzle 32 is a sleeve 86 containing inlet holes 87 so that the products of combustion may be removed through annular space 88 and their temperature taken by thermocouple 74 as they enter space 83.
  • This type of nozzle shown in Figure 4 is adapted to practice either the withdrawal operation in a preformed hole 16 or may be used to burn a hole through the coal, and in both instances the products of combustion are removed through annular space 88.
  • Figure 5 is an elevational view of a tapered plug 89 which may be used to plug any undesired holes in the nozzle as shown in Figure 4.
  • holes 79 and 81 of Figure 3 may be plugged to provide a nozzle of the type having only radial holes, or the lower holes may be plugged in a nozzle so that the major portion or all of the fluid passing out through the nozzle may be directed upwardly which is preferable in many instances.
  • Figure 6 shows how the invention may be employed in a directional drill hole extending through non-productive formation 91 into coal vein 92 which lies between forma tions 91 and 93.
  • a conventional drilling rig 94 may be employed to sink a well 96 which well is deflected by any conventional method such as whipstocking at 97 into more or less horizontal bore 98 in the coal seam 92.
  • the bore 98 is in the coal seam it may be extended therein by conventional drilling Proc sses. 01' by burning.
  • FIG 8 a hole is being burned to the right in coal seam 104 loeated between earth formations 105 and 106 by a nozzle 107 on the end of a flexible conduit 108 insorted in a shaft 109.
  • Flexible conduit 108 is coiled on a druinllll mounted .on a truck 112 and fluids are supplied through conduit 108 by a pipe 113 leading to the inner end of the .conduit 108 on drum 111 by suitable stuffing box arrangement.
  • Nozzle 107 is provided with a thermocouple74 (not shown) and the wires from the thermocouple lead to slip rings 114 and 116 on drum 111 from which suitable brushes pick up the potential developed and carry the same through wires 117 and 118 to a suitable indicating instrument 119.
  • steam from boiler 121, gas from gas container 122 and/ or oxygen from container 123 may be supplied in any, proportion to the conduit 108.
  • valve 56 i Qll d valve 54 9 9? ih p t e E nowadays .P through flexible conduit 53" id 'blovvs the valve'head 131 inthe right hand valve 24 tc'close seat 127 whereas inall of the other valves 24 the valve head 131 is being blown against seat 128.
  • Valve 54 is then removed from valve section 24 and in order to obviate any difiiculty the plug 129 is screwed into 24 to close opening. 128 in a secure manner.
  • Valve heads 131 act as check valves preventing backward flow through pipe 21 in case of any underground explosion.
  • the coal in seam 14 adjacent jets 26 is burned to ashes 28 which may or may not contain a certain amount of coke.
  • the pipe 21 is withdrawn from hole 16 placing jets 26 opposite fresh unburned coal where the jets start burning crevices 27 back into the coal, igniting the same and turning it into ashes 28.
  • reaction gases are travelling through hole 16 around pipe 21 into head 29 and through pipe 23 to a gas holder 37 of the usual type.
  • the pressure of the gas is preferably indicated on gauge 34 and samples of the gas being produced are preferably'analyzed in the gas analyzer 44..
  • the composition of gases entering through valve 48, 58 and 691's preferably known and the pressure thereofis preferably measured bygauge71.
  • Figure 6 The operation of Figure 6 is similar to that of Figure '1 except that hole 98 replaces hole 16 and hole 98 is drilled by a means of drilling a well 96 in a vertical direction through formation 91 and deflecting the same by whipstocking at 97, or other well known deflective hole drilling methods.
  • a system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle having radial jets and forwardly directed jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that con tinued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, a source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources with at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
  • a system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle having radial jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, an annular sleeve having inlet holes and surrounding said tube, said sleeve axially extending from said nozzle to said casing whereby the products of combustion may be removed through the annular space defined by said annular sleeve and said tube, a source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources to at least one of said radial passages comprising two flexible conduits where

Description

March 26, 19 57 c. E. ALLEMAN 2,786,660
APPARATUS FOR GASIFYING COAL Original Filed Jan.- 5, 1948 2 Sheets-Sheet l a 28 flaw '41!!! A EHHEIIHIE ivlggjflF" H61 2 INVENTOR.
' C. E. ALLE MAN mfg March 26,1957 c. E. ALLEMAN APPARATUS FOR GASIF'YING COAL Qriginal Filed-Jan. 5. 1948 2 Sheets-Sheet 2 My m: a I
h: m m Q: m:
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INVENTOR. c. E. ALLEMAN BY @rToR/m s United States Patent Original application January 5, 1948, Serial No. 601.
Divided and this application December 29, 1952. Serial No. 328,477
6 Claims. (01'. z'ez s) This invention relates to the gasifi'cation of coal in underground formations. In one specific embodiment it relates to the method of making gas mixtures rich in hydrogen and carbon monoxide by the reaction of methane with steam, methane with carbon dioxide, or controlled partial oxidation of methane with air or oxygen.
Other specific aspects involve the novel apparatus employed in producing various valuable gases from coal by underground gasification and/or burning of the coal in situ.
The present application is a division of my copending application Serial No. 601, filed January 5, 1948, now abandoned, for Method and Apparatus for Gasifying Coal."
Numerous valuable chemical processes are being developed in the United States and elsewhere employing socalled synthesis gas or other gaseous mixtures rich in hydrogen and carbon monoxide, which gases are reacted in various chemical processes to producehydrocarbons, alcohols and other products of value. Also gases rich in hydrogen and/or carbon monoxide are valuable as fuels. At the same time many coal deposits in the United States and elsewhere cannot be mined in a profitable manner by ordinary mining methods because of the low grade of the coal, the thinness of the coal scam, the steep angle of dip of the seam, the tendencies to spontaneous combustion, dangerous gas content, high ash content, or other disadvantageous or hazardous I characteristics. While the coal deposits valuable for conventional'minin'g' are relatively restricted in area, there is practically, an unlimited amount, of low grade coal in thin seams which is not worth mining; A number of plans for underground gasification of such coal have been made in' the' prior art and it is understood that some of these plans have been tried out in Russia. None of these prior art plans for underground gasifi'ca-tion of coalfhas ever achieved any commercial success and Workers in this field have been unable to determine exactly what is wrong with the proposed processes. I, I
I have found that the reason for failure of the prior art methods to produce operable results is that they are incapable of operating at a temperature high enough to properly carry out the reactions necessary toproduce the desired product or products. For example, one of the chief reactions involved is the reaction of methane with steam to form hydrogen and carbon monoxide according to the following formulae:
In order for this'reacti'on to occur properly a temperature preferably above 1500 F. is desirablebecause with a temperature ofab'ou ti 1200 F. the" reaction tends to'follow the following equation:
In the absence 6r catalysts therate of he m thane steam reaction" is" saidtc' be slow, becoming appreciable only at temperatures above 2370 F. While same under-- I 2,766,666 P t dNa 6 19 ice 2 ground deposits may: have. catalytic value, generally: the underground gasification of coal may be regarded as more nearlynon-catalytic than catalytic. I II I I Obviously, other reactions are occurring along with the two reactions with steam mentioned above, such as the reaction with carbon dioxide: I I I I I (3) CHM-CD2+ 2CO+2H2 ('60 K calsL) And some controlled oxidation: I I (4) 2CI-I4+Oz 2CO+4Hi (-F -7.2 K calls.) I
Another reaction which takes place is a combination reaction according to the following equation:
I have found that the diificul-ty in the priorart S 1 9i capable of solution by merely increasing the amount. of air as the relative heat losses are roughlyv inversely proportional to the square root of the intensity of gasifica; tion. The presentinvention is a solution to the difiiculties of the prior art by supplying streams of air or oxygen and/or steam or other gases or fluids at high pressures in the vicinity of the point at which the combustion is taking place so that said combustionor gasification of the coal may be v controlled. in such manner as to produce a better product uiithl'essexpense and difficulty. flhe apparatus of the present invention provides for. moving the point of application of the high pressure fluids so that a progressive. process may be practiced enabling temperature control whichwillniaintain the temperature of reaction' at a level more nearly optimum to the desired reae: tions and thereby minimize the undesired reactions which occur.
O ne object of the present invention isto provide apparatu'sfor' theunderg'rou'nd gasification of coal. I i I v I.
Another object is topr'ovide such apparatus asisfparticularly useful in coal seamsf that are unprofitabletowork by ordinary mining methods, especially low grade coal, coal inthin seams, coal seams dipping sharply, gassy coal, coal, having a tendency to spontaneouscom bustion, coal having aihigh ash content ,.or.coal having other characteiistics making mining unprofitable How: ever, it should be undr'stood'that myrapparatus ispere, fectlyI capable ,of operation'in coalj'seamsf suitablelfon mining, and with proper development, it is an objectof my invention to provide means capable of competing with presentsyst'ems of mining coal; r I
A further object is' to provide apparatusand means for operating the same to'practice methods that will per: mit more complete recovery of coal in' situin the form of'valuable gases. I I Y Another object is toflprovide suitable apparatus for gasifiyng coal underground. I I
Numerous other objects and advantages will be apparent to those s killed in the art upon reading the accompanying specification, drawings and claims.
In the drawings: I
Figure 1 is a cross sectional elevational view taken through? PO fthd earth' containinga coal seam showing apparatus embodying Certain aspects of the-pres ent, invention and, illustrating onefpoint inthe operation ofa' method embodying specific aspects of the presentinv ii i n Figure 2 is a cross sectional view of one'formcf jet tube which is shown in Figurejl.
Figure 3 is a view similar to Figure 2 of a' second iYP, of jet tube which may be employed in the practice of thisinventi'on. I
Figure 4 is a qu r ri 'awed e ev ti nal V ew; of a our form of jet, tube which'ma'y be employed in thep'rfacticc. of the presentinventio Figure 5 is" an" elevational view of't'ap' ed l" the jettubes of Figures 1 to 4, inclusive, when it is desired to modify direction of the jet action.
Figure 6 is a cross sectional view of a portion of the earth showing how the methods and apparatus of the present invention may be adapted to use in the deflected well.
Figure 7 shows a preferred position for a drill hole or burned hole in a coal seam.
Figure 8 is a cross sectional elevational view of a por tion of the earth showing a modified form of apparatus being employed in burning a hole in the lower portion of the coal seam.
Figure 9 is a cross sectional view taken through one of the valve units employed in the apparatus shown in Figure 1. a 1
In Figure l a cross section of earth formations generally designated as 11 may contain non-productive earth formations 12 and 13 and a vein or seam of coal 14. Coal seam 14 may be one that is either profitable or unprofitable to mine by conventional mining methods, as the present invention applies to either type of coal seam; however, the present invention has a special value when the coal seam 14 is of a type unprofitable to mine by conventional mining methods.
In coal seam 14 a hole 16 has been drilled by any conventional method of drilling holes, or holes 16 may be burned into coal by methods to be discussed later. Hole 16 may be in the center of the coal seam as shown but often it is preferably located in the lower portion of the coal seam as will be explained with relation to Figure 7 later in this disclosure. Air or oxygen from tank 17, fuel gas from tank 18, and/or steam from boiler 19 in any combination or singly may be introduced into hole 16 through a pipe 21 as will be set forth later.
Pipe 21 comprises a jet nozzle portion 22, pipe sections 23 and valve connector sections 24. The valve connector sections 24 are more fully illustrated in Figure 9.
' The fluid or fluids being forced into hole 16 through pipe 21 emerge from radial jet holes 26 in the jet nozzle 22 and burn, erode and otherwise enter coal vein 14 along planes 27, causing a rapid burning or gasification of the coal to proceed at a relatively high temperature whereby optimum amounts of gas having a valuable composition are produced and the coal 14 is reduced to ashes and/ or coke 28. When the coal 14 is reduced to ashes 28 at a point adjacent jet nozzle 22, the jet nozzle is then moved through hole 16 to a new position where it will operate on fresh coal, and this movement may be either uniform or by steps as desired, as will be explained below.
' As the coal is gasified the gases pass out hole 16 and around the outside of pipe 21 and are collected by a casing head 29 which may be sealed to the coal seam 14 by any conventional means, such as cement. Casing head 29 has a stufiing box 31 and stutfing box follower 32 for packing around pipe 21 especially as pipe 21 is moved in or out of hole 16.
Casing head 29 is provided with a product fiow line 33 which may have the usual pressure gauge 34. Line 33 may lead through a suitable cut-off valve 36 into a gas holder 37 from which the gas may be withdrawn through a product line 38 controlled by valve 39 for use as fuel gas or as a reactant gas in a Fischer-Tropsch or other chemical process (not shown). Gas holder 37 is shown with a conventional floating roof 41 but obviously any type of gas holder may be employed.
In order to provide information as to the value of gas being produced, which information may also be valuable in directing the control of the process, it is desirable to sample the gas in conduit 33 by means of a sample line 42 controlled by valve 43 which leads to any suitable type of gas analyzing apparatus 44. Such analyzing apparatus is well known to the art'an'd, therefore, is not described further except to state that gas may be analyzed for the amount of water, carbon monoxide, carbon, di
oxide, hydrogen, oxygen, nitrogen, methane and other products which it may be expected to contain.
Gas (such as fuel gas) may be supplied from tank 18 through conduit 46 controlled by valves 47 and 48 and pressure regulator 49 to a manifold 51 from which it may be introduced into pipe 21 through either or both flexible hose 52 and 53 controlled by valves 54 and 56 all in the manner as will be more fully described with reference to Figure 9.
Steam from boiler 19 is similarly supplied to manifold 51 through conduit 57 controlled by valve 58 and pressure regulator 59. Boiler 19 may, of course, be supplied with all the usual equipment such as relief valve 61 and pressure gauge 62.
In a similar manner oxygen from the tank (not shown) or from an oxygen producing plant (not shown) may enter the system at 63 and be compressed by compressor 64 and stored in tank 17 which may be provided with a relief valve (not shown), pressure gauge 66 and other regular equipment. From tank 17 the air or oxygen may pass through a regulator 67 and conduit 6% controlled by valve 69 into manifold 51, and'the pressure in manifold 51 is indicated by pressure gauge 71.
Figure 2 shows the jet nozzle 22 of Figure l on a large scale and with parts in cross-section broken away to show details of construction. While in many instances nozzle 22 can be made out of steel or other metal, I prefer to make the same out of a hard ceramic material which is capable of withstanding higher temperatures than metal and this is of particular value when oxygen is being ernployed in the burning out process as sometimes when oxygen is being introduced through a steel pipe, the pipe may catch fire and burn or become melted in some way or other. In the form shown in Figure 2, nozzle 22 has closed or blank end 72 and a hollow interior 73 communicating with the interior of pipe 21 to receive fluids therefrom. Nozzle 22 is, of course, provided with jet holes 26 which direct fluids emerging therefrom as radial jets. The nozzle 22 may be provided with a thermocouple 74 having an electric cable 76 connected to a suitable indicating instrument as will be shown in Figure 8.
Figure 3 shows a modified type of jet nozzle '77 having radial jet 78 but also having axial jet 79 and other forwardly directed jets'81. 77 is preferably made of steel or other material of considerable strength because jet 77 is employed in modified forms of my process in which the hole is burned into coal by the progress of jet 77 instead of having the hole 16 first drilled and jet 22 merely inserted and withdrawn in a preformed hole.
Figure 4 shows a third modification of a nozzle 82 pro-- vided with radial jet holes 83 and forwardly directed jet holes 84. Surrounding nozzle 32 is a sleeve 86 containing inlet holes 87 so that the products of combustion may be removed through annular space 88 and their temperature taken by thermocouple 74 as they enter space 83. This type of nozzle shown in Figure 4 is adapted to practice either the withdrawal operation in a preformed hole 16 or may be used to burn a hole through the coal, and in both instances the products of combustion are removed through annular space 88.
Figure 5 is an elevational view of a tapered plug 89 which may be used to plug any undesired holes in the nozzle as shown in Figure 4. For example, holes 79 and 81 of Figure 3 may be plugged to provide a nozzle of the type having only radial holes, or the lower holes may be plugged in a nozzle so that the major portion or all of the fluid passing out through the nozzle may be directed upwardly which is preferable in many instances.
Figure 6 shows how the invention may be employed in a directional drill hole extending through non-productive formation 91 into coal vein 92 which lies between forma tions 91 and 93. A conventional drilling rig 94 may be employed to sink a well 96 which well is deflected by any conventional method such as whipstocking at 97 into more or less horizontal bore 98 in the coal seam 92. Either hsarnsratus qt Fisars 1 ortha f. F g 8 ay be 9 3.- nIQy c1; "If't a pa at s o i u e 1 ssm l yed 1H 19 enient to. more t e asin a 29 a the surftw.e of the ground. In either instance after the bore 98 is in the coal seam it may be extended therein by conventional drilling Proc sses. 01' by burning.
' In Figure 7 a coalsearn 99 is located between earth formations 101 and 102. and the bore hole or hole being burned 103; is located adjacent the bottom of the coal searn which is preferable in many instances as later burniiig or gasification of the coal occurs more easily in the upper direction in seam 99 because of the convection of hot products upwardly and cold products downwardly due to difierence in specific gravity. Bore 103 may rest on formation 102 which may be a hard formation as will be explained with relation to Figure '8.
In Figure 8 a hole is being burned to the right in coal seam 104 loeated between earth formations 105 and 106 by a nozzle 107 on the end of a flexible conduit 108 insorted in a shaft 109. Flexible conduit 108 is coiled on a druinllll mounted .on a truck 112 and fluids are supplied through conduit 108 by a pipe 113 leading to the inner end of the .conduit 108 on drum 111 by suitable stuffing box arrangement. Nozzle 107 is provided with a thermocouple74 (not shown) and the wires from the thermocouple lead to slip rings 114 and 116 on drum 111 from which suitable brushes pick up the potential developed and carry the same through wires 117 and 118 to a suitable indicating instrument 119. As shown in the drawings, steam from boiler 121, gas from gas container 122 and/ or oxygen from container 123 may be supplied in any, proportion to the conduit 108.
In Figure 9 the valve connection 24 of Figurel is shown in greater detail. Valve connection 24 is provided @XtErnally threaded ends 124 and contains a bore 12 havingan axial valve seat 127 and a radial bore 128. Radial bore 128 may be closed by a plug 129 or may be eonnected to one of conduits 52 or 53, of Figure 1 by ineans- ofa valve connection 54 or 56. In connection 24 avalve 131 is pivoted at pivot 132 to swing from the pp tion shown in; which it closes bore 128 to a vertical Nat o -in h t wi close bore 127 epe g pon thprelativepressure of fluids inb ores 1-27 and 128 as will he explained under the operation of the" invention.
Operation 1 In Figure 1 a bore hole 16 has been driven into the coal seam 14 either by drilling the bore hole with any conventionaldrilling equipment, such as a diamond core drill (not show-n) or hole 16'may have been burned into the formation by a method similar to that shown in Figure 8. Regardless of how hole 16 is produced the method in Figurea is as follows: Agas conducting conduit 21 is assembled out of pipes 23 andvalved joints 24 with a jet nozzle 22 on its end and is inserted into bore hole 16 through stuffing box 31, 32of sealing head 29. During this insertion air from pipe 68 and gas-from pipe 46 may be forced through conduit 2'1fland having once been ignited by a match (not shown) willb urn as it emerges from jets 26. -T he operation of valves 24 will be apparent from Figure9. Valve head 131 is pivoted at 132 and will seat close either passage 127 or passage 128 dependingon which passage contains gas at the greater pressure. Ob.- 9l ya' x zbssd ses the Pass having the least pressure, being-blown shut against said passage by the-flow ofgas from theother passage through opening 126, Returning-to Figure 1 with valve 56 rclosedand valve '54 open, gases from manifold 51 pass through flexihie condnit-fl and blow valve head 131 against seat 127 thn forcin jthe gases toproceed. through pipe 21 and to $5 119!! 91 263$ jets,- The gases cannot travel to the new-section. of pipe 23 which is? being added. .emvalve section 24 is attached and valve 56 i Qll d valve 54 9 9? ih p t e E?! .P through flexible conduit 53" id 'blovvs the valve'head 131 inthe right hand valve 24 tc'close seat 127 whereas inall of the other valves 24 the valve head 131 is being blown against seat 128. Valve 54 is then removed from valve section 24 and in order to obviate any difiiculty the plug 129 is screwed into 24 to close opening. 128 in a secure manner. Valve heads 131 act as check valves preventing backward flow through pipe 21 in case of any underground explosion.
Flexible conduit 52 and valve 54 are then free to be attached to the next valve 24 after the next pipe section 23 has been attached. In a similar and obvious manner the reverse of this process may be employed in removing pipe 21 section by'section without at any moment inter: rupting the flow of gases therethrough.
Having inserted pipe 21 With a. flame burning at the end through hole 26 into the coal seam preferably to the entire extent of hole 16, it is then preferred to admit air or oxygen from line 68 under increased pressure causing localized burning of the coal inseam 16 adjacent jets 26. When the coal has begun to burn valve 48 may be closed, turning off gas 18,.
It is not believed necessary to go into the various reactions which take place as coal burns in accordance with the amount of oxygen, nitrogen, water vapor and combustion gases which may be present. It is generally con sidered that the coal may break down to methane (CH4) but this is not necessarily true in order to practice applicants invention, which invention does not consist in any theory but which consists incertain process steps or combination of apparatus. The only purpose of mentioning a theory is merely to classify the operation of the invention.
In accordance with the theory that the coal will break down into methane, five equations have been given above. Equations 1, 3, 4 and 5 are desirable and obviously Equation 2 is undesirable. In order to avoid Equation 2 the temperature at the point of reaction should be above 1500 F., or at least closer to 1500 F. thanto 1200" F. because at 1200 F. the reaction tends to obey Equation 2.whereas at 1500 F., and above, Equation 5 is favored, but the temperature at the point of burning should also be below 2370 F. where EquationZ is again favored.
Jets 26 increase the intensity of burning of coal seam 14 so that the desired temperature may be maintained and this temperature may be estimated by readings taken with a thermocouple 74. When the desired temperature is achieved, water vapor preferably in the form of steam may be admitted to the system throughvalve 58.
In a certain length of time the coal in seam 14 adjacent jets 26 is burned to ashes 28 which may or may not contain a certain amount of coke. Either continuously during the burning operation, or in spaced steps, the pipe 21 is withdrawn from hole 16 placing jets 26 opposite fresh unburned coal where the jets start burning crevices 27 back into the coal, igniting the same and turning it into ashes 28.
All of the time that this burning and various reactions are taking place the reaction gases are travelling through hole 16 around pipe 21 into head 29 and through pipe 23 to a gas holder 37 of the usual type. The pressure of the gas is preferably indicated on gauge 34 and samples of the gas being produced are preferably'analyzed in the gas analyzer 44.. At the same time the composition of gases entering through valve 48, 58 and 691's preferably known and the pressure thereofis preferably measured bygauge71.
The process, therefore, can be- -controlled'by various relationships, such as the difference in pressure between gauges 34 and 71, which will indicate the progress of the burning and also control can be obtained 'by readings from thermocouple 74 which indicates the temperature and also the progress of the burning. Also gas analyzer 4-4 may be employed .to indicate nature and degree-of the burning. When all ar'e'nsed, 'in combination these various indicating means give afvery thorough picture of what is going on so that the engineer may make desirable changes in the factors involved.
The gas in gas holder 37 is commercially valuable, consisting mostly of carbon monoxide and hydrogen with or without dilution by nitrogen depending on whether air or oxygen was introduced to the system through pipe 63. Generally it is economically preferable to employ air especially when gas 37 is to be used as fuel gas, and especially when coal seam 14 is shattered so that extraneous air can enter the system. When the gas in gas holder 37 is to be employed in chemical reaction (for example, of the Fischer-Thopsch type) it is often desirable to employ oxygen in which case there is less nitro gen in the gas. The gas is taken through pipe 38 and valve 39 to whatever type of process the gas is to be employed for.
"When pipe 21 is completely removed from coal seam :14, another hole 16 is bored in some other portion of the coal seam and the process is repeated. The operation of the device shown above ground in Figure l is believed obvious. 18 is any source of gas suitable for fuel. This gas may come from an oil well, pipe line, commercial gas plant, or be gas from gas holder 37 produced from another portion of coal seam 14. The pressure of this gas may be regulated at 49. 19 similarly is any source of steam and may be a boiler as shown or may be steam generated by some process utilizing gas from gas holder37 (process not shown). Similarly tank 17 may contain any combination of air and/ or oxygen which may come from an oxygen plant (not shown) attached to pipe 63. If desired additional pumping means may be employed in pipes 33, 46, 57 and 68, and a pumping means (not shown) in pipe 33 may be employed to operate hole 16 at a vacuum if desired.
The operation of Figure 6 is similar to that of Figure '1 except that hole 98 replaces hole 16 and hole 98 is drilled by a means of drilling a well 96 in a vertical direction through formation 91 and deflecting the same by whipstocking at 97, or other well known deflective hole drilling methods.
The method shown in Figure 7 is adaptable to the method shown in Figure l and Figure 6 as Figure 7 merely emphasizes the desirability in many instances of running hole 103 at or near the bottom of coal seam 99 because, as well known, the burning of coal or other substances generally proceeds in an upward direction due to the fact that hot gases are lighter than cold gases and, therefore, are forced upward by the heavier cold gases. In order to direct these gases upwardly from the jets into coal 99 it is often desirable to plug some of the jet holes 26 and this may be done by employing tapered plugs such as 89 of Figure which plugs may be placed in any of the holes shown in Figures 1, 2, 3, 4 and 8.
When employing the nozzle shown in Figure 4 it is not necessary to have a housing such as 29 as the combustion gases enter holes 87 and are drawn olf through space 88 preferably by a vacuum purnp of some type.
' In the method shown in Figure 8 a portable apparatus 112 supplies steam, gas or air in the desired proportions to the end of hose 108 reeled on reel 111 and this flexible hose 108 may be forced into the coal so that a hole is burned in the coal by flames coming out of nozzle 107. When this hole has been burned back into the coal a sufficient distance a split housing (not shown) similar to housing 29 may be placed around hose 1% and then with increased air pressure hose 1% may be withdrawn slowly through the coal 104, the burning of which with or "without the presence of steam from boiler 121 will produce valuable gases in the manner described relative to Figure l.
When burning holes in the coal, it is often preferred use jets such as shown in Figures 3 and 4 in which there are forwardly directed holes 79, 31 and 34. These forwardly directed holes can be plugged with plugs 89 if desired before burning the coal and withdrawing the pipe. However, in the process of burning the coal and withdrawing the pipe it isoften preferable to employ '3 nozzle 22 made of ceramic material as illustrated in Figure 2 because such material is capable of withstanding higher temperatures which is also especially valuable when using oxygen in pipe 68 as it is Well known that a steel pipe will burn if oxygen is being injected through it and it reaches sufficient temperature.
While I have described above certain specific forms and apparatus and certain specific sequences of process steps, it is understood that this has been done in order to give illustrative embodiments to the invention and that the invention is not limited thereby but instead is of a scope defined and limited only by the following claims.
Having described my invention, I claim:
l. A system for .the underground gasification of coalin a coal vein which comprises a tube having a jetting nozzle having radial jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, at source of steam, a source of fuel gas, and a source .of free oxygen containing gas, a manifold connecting said sources with at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
2. A system for the underground .gasification of coal in a coal vein which comprises a tube having a jetting nozzle adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communiouting sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources with at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head. j
3. A system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in corn munication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, a source of steam, and a source of free oxygen containing gas, a manifold connecting said sources with at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption dur-' ing the insertion and withdrawal of said tube through said casing head. l
4. A system for the underground gasification o f coal in a coal vein whichcomprises a tube having a'jefting nozzle adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, a source of free oxygen containing gas, a manifold connecting said source with at least one of said radial passages comprising two flexible conduits whereby fluid from said source may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
5. A system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle having radial jets and forwardly directed jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that con tinued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, a source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources with at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
6. A system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle having radial jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, an annular sleeve having inlet holes and surrounding said tube, said sleeve axially extending from said nozzle to said casing whereby the products of combustion may be removed through the annular space defined by said annular sleeve and said tube, a source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources to at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
7. A system for the underground gasification of coal in a coal vein which comprises a tube having a jetting nozzle having radial jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passage so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, an annular sleeve having inlet holes and surrounding said tube, said sleeve axially extending from said nozzle to said casing whereby the products of combustion may be removed through the annular space defined by said annular sleeve and said tube, a thermocouple in said annular space generally adjacent said nozzle, a source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources to at least one of said radial passages comprising two flexiole conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
8. A system for the underground gasification of coal in a coal vein which-comprises a tube having a jetting nozzie having radial jets and forwardly directed jets therein adapted to be disposed in said coal vein, a casing head sealed to said coal vein and to said tube, said tube comprising a plurality of connected and communicating sections, each section having an axial passage in communication with the next section and a radial passage communicating with said axial passage, check valve means controlling flow through said passages so that continued flow through said axial passage away from said nozzle and from said axial passage out through said radial passage is checked, an annular sleeve having inlet holes and surrounding said tube, said sleeve axially extending from just back of said nozzle to said casing whereby the products of combustion may be removed through the annular space defined by said annular sleeve and said tube, a thermocouple in said annular space generally adjacent said nozzle, 21 source of steam, a source of fuel gas, and a source of free oxygen containing gas, a manifold connecting said sources to at least one of said radial passages comprising two flexible conduits whereby fluids from said sources may be continuously supplied to said nozzle without interruption during the insertion and withdrawal of said tube through said casing head.
References Cited in the file of this patent UNITED STATES PATENTS 947,608 Betts Jan. 25, 1910 1,244,030 Cave Oct. 23, 1917 1,325,116 Sebille Dec. 16, 1919 1,559,934 Bosch Nov. 3, 1925 1,666,488 Crawshaw Apr. 17, 1928 1,702,546 Owens et al Feb. 19, 1929 1,839,515 Weatherbee Ian. 5, 1932 1,913,395 Karrick June 13, 1933 2,193,893 Van Vleck Mar. 19, 1940 2,284,603 Belchetz et al. May 26, 1942 2,466,945 Greene Apr. 12, 1949 2,481,051 Uren Sept. 6, 1949 2,497,868 Dalin Feb. 21, 1950 2,695,163 Pearce et al. Nov. 23, 1954 FOREIGN PATENTS 200,423 Germany July 17, 1908 OTHER REFERENCES Experiment in Underground Gasification of Coal, Gorgas, Ala.; Report of Investigations, Bureau of Mines R. I. 4164, Aug. 1947, especially pages 6, 28 and 42.
Fuels and their Combustion Haslam and Russell, 1st ed. 1926; pgs. 162-165.
The Gas World, No. 25, 1944 (pg. 547).

Claims (1)

1. A SYSTEM FOR THE UNDERGROUND GASIFICATION OF COAL IN A COAL VEIN WHICH COMPRISES A TUBE HAVING A JETTING NOZZLE HAVING RADIAL JETS THEREIN ADAPTED TO BE DISPOSED IN SAID COAL VEIN, A CASING HEAD SEALED TO SAID COAL VEIN AND TO SAID TUBE, SAID TUBE COMPRISING A PLURALITY OF CON-L NECTED AND COMMUNICATING SECTIONS, EACH SECTION HAVING AND AXIAL PASSAGE IN COMMUNICATION WITH THE NEXT SECTION AND A RADIAL PASSAGE COMMUNICATING WITH SAID AXIAL PASSAGE, CHECK VALVE MEANS CONTROLLING FLOW THROUGH SAID PASSAGES SO THAT CONTINUED FLOW THROUGH SAID AXIAL PASSAGE AWAY FROM SAID NOZZLE AND FROM SAID AXIAL PASSAGE OUT
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Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930598A (en) * 1957-08-26 1960-03-29 Phillips Petroleum Co In situ combustion of carbonaceous deposits
US2958519A (en) * 1958-06-23 1960-11-01 Phillips Petroleum Co In situ combustion process
US3024013A (en) * 1958-04-24 1962-03-06 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US3034580A (en) * 1959-08-31 1962-05-15 Phillips Petroleum Co In situ combustion of lignite
US3115184A (en) * 1960-01-04 1963-12-24 Well Completions Inc Method and apparatus for severing casings and the like
US3254721A (en) * 1963-12-20 1966-06-07 Gulf Research Development Co Down-hole fluid fuel burner
US3497335A (en) * 1967-06-08 1970-02-24 John Watson Taylor Underground gasification of coal
US3628929A (en) * 1969-12-08 1971-12-21 Cities Service Oil Co Method for recovery of coal energy
US3856084A (en) * 1973-06-07 1974-12-24 Continental Oil Co An improved blind borehole back-reaming method
US3982591A (en) * 1974-12-20 1976-09-28 World Energy Systems Downhole recovery system
US3994340A (en) * 1975-10-30 1976-11-30 Chevron Research Company Method of recovering viscous petroleum from tar sand
US3994341A (en) * 1975-10-30 1976-11-30 Chevron Research Company Recovering viscous petroleum from thick tar sand
US4010801A (en) * 1974-09-30 1977-03-08 R. C. Terry Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat
US4037658A (en) * 1975-10-30 1977-07-26 Chevron Research Company Method of recovering viscous petroleum from an underground formation
US4062404A (en) * 1976-09-30 1977-12-13 The United States Of America As Represented By The United States Energy Research And Development Administration Method for in situ combustion
US4087130A (en) * 1975-11-03 1978-05-02 Occidental Petroleum Corporation Process for the gasification of coal in situ
US4099570A (en) * 1976-04-09 1978-07-11 Donald Bruce Vandergrift Oil production processes and apparatus
US4122897A (en) * 1977-12-28 1978-10-31 The United States Of America As Represented By The United States Department Of Energy In situ gasification process for producing product gas enriched in carbon monoxide and hydrogen
US4301875A (en) * 1977-03-04 1981-11-24 Messerschmitt-Bolkow-Blohm Gmbh Method for making holes and producing gas in coal seams
US4499945A (en) * 1983-05-26 1985-02-19 The United States Of America As Represented By The United States Department Of Energy Silane-propane ignitor/burner
US4705109A (en) * 1985-03-07 1987-11-10 Institution Pour Le Developpement De La Gazeification Souterraine Controlled retracting gasifying agent injection point process for UCG sites
WO2001081240A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In-situ heating of coal formation to produce fluid
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030098605A1 (en) * 2001-04-24 2003-05-29 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
US20030173082A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of a heavy oil diatomite formation
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US20030192691A1 (en) * 2001-10-24 2003-10-16 Vinegar Harold J. In situ recovery from a hydrocarbon containing formation using barriers
US20030192693A1 (en) * 2001-10-24 2003-10-16 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US20040144541A1 (en) * 2002-10-24 2004-07-29 Picha Mark Gregory Forming wellbores using acoustic methods
US20050269092A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Vacuum pumping of conductor-in-conduit heaters
US7011154B2 (en) 2000-04-24 2006-03-14 Shell Oil Company In situ recovery from a kerogen and liquid hydrocarbon containing formation
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US20070039729A1 (en) * 2005-07-18 2007-02-22 Oil Sands Underground Mining Corporation Method of increasing reservoir permeability
US20070045266A1 (en) * 2005-04-22 2007-03-01 Sandberg Chester L In situ conversion process utilizing a closed loop heating system
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
US20070095536A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Cogeneration systems and processes for treating hydrocarbon containing formations
US20070108201A1 (en) * 2005-04-22 2007-05-17 Vinegar Harold J Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US20080017416A1 (en) * 2006-04-21 2008-01-24 Oil Sands Underground Mining, Inc. Method of drilling from a shaft for underground recovery of hydrocarbons
US20080038144A1 (en) * 2006-04-21 2008-02-14 Maziasz Phillip J High strength alloys
US20080073079A1 (en) * 2006-09-26 2008-03-27 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20080078552A1 (en) * 2006-09-29 2008-04-03 Osum Oil Sands Corp. Method of heating hydrocarbons
US20080087422A1 (en) * 2006-10-16 2008-04-17 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US20090084707A1 (en) * 2007-09-28 2009-04-02 Osum Oil Sands Corp. Method of upgrading bitumen and heavy oil
US20090100754A1 (en) * 2007-10-22 2009-04-23 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090139716A1 (en) * 2007-12-03 2009-06-04 Osum Oil Sands Corp. Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US20090194280A1 (en) * 2008-02-06 2009-08-06 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20100089586A1 (en) * 2008-10-13 2010-04-15 John Andrew Stanecki Movable heaters for treating subsurface hydrocarbon containing formations
US20100258265A1 (en) * 2009-04-10 2010-10-14 John Michael Karanikas Recovering energy from a subsurface formation
US8209192B2 (en) 2008-05-20 2012-06-26 Osum Oil Sands Corp. Method of managing carbon reduction for hydrocarbon producers
US8313152B2 (en) 2006-11-22 2012-11-20 Osum Oil Sands Corp. Recovery of bitumen by hydraulic excavation
US20130312950A1 (en) * 2011-02-18 2013-11-28 Linc Energy Ltd. Igniting an underground coal seam in an underground coal gasification process, ucg
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
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US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
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US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
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US20180209259A1 (en) * 2015-01-06 2018-07-26 China University Of Mining And Technology Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200423C (en) * 1907-07-24
US947608A (en) * 1906-12-27 1910-01-25 Anson G Betts Method of utilizing buried coal.
US1244030A (en) * 1917-04-25 1917-10-23 Davis Bournonville Co Portable gas welding or cutting equipment.
US1325116A (en) * 1919-12-16 Island
US1559934A (en) * 1924-04-28 1925-11-03 Bosch Abraham Ten Method for reducing the percentage of water of peateries
US1666488A (en) * 1927-02-05 1928-04-17 Crawshaw Richard Apparatus for extracting oil from shale
US1702546A (en) * 1924-08-11 1929-02-19 Peter J Owens Pavement resurfacer
US1839515A (en) * 1927-01-15 1932-01-05 Autogas Corp Gas burner
US1913395A (en) * 1929-11-14 1933-06-13 Lewis C Karrick Underground gasification of carbonaceous material-bearing substances
US2193893A (en) * 1938-10-17 1940-03-19 Horace Russ Van Vleck Tractor trailer power transmitting means
US2284603A (en) * 1940-02-02 1942-05-26 Kellogg M W Co Process for the catalytic conversion of hydrocarbons
US2466945A (en) * 1946-02-21 1949-04-12 In Situ Gases Inc Generation of synthesis gas
US2481051A (en) * 1945-12-15 1949-09-06 Texaco Development Corp Process and apparatus for the recovery of volatilizable constituents from underground carbonaceous formations
US2497868A (en) * 1946-10-10 1950-02-21 Dalin David Underground exploitation of fuel deposits
US2695163A (en) * 1950-12-09 1954-11-23 Stanolind Oil & Gas Co Method for gasification of subterranean carbonaceous deposits

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325116A (en) * 1919-12-16 Island
US947608A (en) * 1906-12-27 1910-01-25 Anson G Betts Method of utilizing buried coal.
DE200423C (en) * 1907-07-24
US1244030A (en) * 1917-04-25 1917-10-23 Davis Bournonville Co Portable gas welding or cutting equipment.
US1559934A (en) * 1924-04-28 1925-11-03 Bosch Abraham Ten Method for reducing the percentage of water of peateries
US1702546A (en) * 1924-08-11 1929-02-19 Peter J Owens Pavement resurfacer
US1839515A (en) * 1927-01-15 1932-01-05 Autogas Corp Gas burner
US1666488A (en) * 1927-02-05 1928-04-17 Crawshaw Richard Apparatus for extracting oil from shale
US1913395A (en) * 1929-11-14 1933-06-13 Lewis C Karrick Underground gasification of carbonaceous material-bearing substances
US2193893A (en) * 1938-10-17 1940-03-19 Horace Russ Van Vleck Tractor trailer power transmitting means
US2284603A (en) * 1940-02-02 1942-05-26 Kellogg M W Co Process for the catalytic conversion of hydrocarbons
US2481051A (en) * 1945-12-15 1949-09-06 Texaco Development Corp Process and apparatus for the recovery of volatilizable constituents from underground carbonaceous formations
US2466945A (en) * 1946-02-21 1949-04-12 In Situ Gases Inc Generation of synthesis gas
US2497868A (en) * 1946-10-10 1950-02-21 Dalin David Underground exploitation of fuel deposits
US2695163A (en) * 1950-12-09 1954-11-23 Stanolind Oil & Gas Co Method for gasification of subterranean carbonaceous deposits

Cited By (484)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930598A (en) * 1957-08-26 1960-03-29 Phillips Petroleum Co In situ combustion of carbonaceous deposits
US3024013A (en) * 1958-04-24 1962-03-06 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US2958519A (en) * 1958-06-23 1960-11-01 Phillips Petroleum Co In situ combustion process
US3034580A (en) * 1959-08-31 1962-05-15 Phillips Petroleum Co In situ combustion of lignite
US3115184A (en) * 1960-01-04 1963-12-24 Well Completions Inc Method and apparatus for severing casings and the like
US3254721A (en) * 1963-12-20 1966-06-07 Gulf Research Development Co Down-hole fluid fuel burner
US3497335A (en) * 1967-06-08 1970-02-24 John Watson Taylor Underground gasification of coal
US3628929A (en) * 1969-12-08 1971-12-21 Cities Service Oil Co Method for recovery of coal energy
US3856084A (en) * 1973-06-07 1974-12-24 Continental Oil Co An improved blind borehole back-reaming method
US4010801A (en) * 1974-09-30 1977-03-08 R. C. Terry Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat
US3982591A (en) * 1974-12-20 1976-09-28 World Energy Systems Downhole recovery system
US3994340A (en) * 1975-10-30 1976-11-30 Chevron Research Company Method of recovering viscous petroleum from tar sand
US3994341A (en) * 1975-10-30 1976-11-30 Chevron Research Company Recovering viscous petroleum from thick tar sand
US4037658A (en) * 1975-10-30 1977-07-26 Chevron Research Company Method of recovering viscous petroleum from an underground formation
US4087130A (en) * 1975-11-03 1978-05-02 Occidental Petroleum Corporation Process for the gasification of coal in situ
US4099570A (en) * 1976-04-09 1978-07-11 Donald Bruce Vandergrift Oil production processes and apparatus
US4062404A (en) * 1976-09-30 1977-12-13 The United States Of America As Represented By The United States Energy Research And Development Administration Method for in situ combustion
US4301875A (en) * 1977-03-04 1981-11-24 Messerschmitt-Bolkow-Blohm Gmbh Method for making holes and producing gas in coal seams
US4122897A (en) * 1977-12-28 1978-10-31 The United States Of America As Represented By The United States Department Of Energy In situ gasification process for producing product gas enriched in carbon monoxide and hydrogen
US4499945A (en) * 1983-05-26 1985-02-19 The United States Of America As Represented By The United States Department Of Energy Silane-propane ignitor/burner
US4705109A (en) * 1985-03-07 1987-11-10 Institution Pour Le Developpement De La Gazeification Souterraine Controlled retracting gasifying agent injection point process for UCG sites
US4754811A (en) * 1985-03-07 1988-07-05 Institution Pour Le Developpement De La Gazeification Souterraine Controlled retracting gasifying agent injection point process for UCG sites
US8225866B2 (en) 2000-04-24 2012-07-24 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6769483B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US20020040778A1 (en) * 2000-04-24 2002-04-11 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US20020046883A1 (en) * 2000-04-24 2002-04-25 Wellington Scott Lee In situ thermal processing of a coal formation using pressure and/or temperature control
US20020049360A1 (en) * 2000-04-24 2002-04-25 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce a mixture including ammonia
US20020076212A1 (en) * 2000-04-24 2002-06-20 Etuan Zhang In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons
WO2001081240A3 (en) * 2000-04-24 2002-07-04 Shell Oil Co In-situ heating of coal formation to produce fluid
US20020132862A1 (en) * 2000-04-24 2002-09-19 Vinegar Harold J. Production of synthesis gas from a coal formation
WO2001081240A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In-situ heating of coal formation to produce fluid
US8789586B2 (en) 2000-04-24 2014-07-29 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US8485252B2 (en) 2000-04-24 2013-07-16 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7096941B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7086468B2 (en) 2000-04-24 2006-08-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US7036583B2 (en) 2000-04-24 2006-05-02 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US7017661B2 (en) 2000-04-24 2006-03-28 Shell Oil Company Production of synthesis gas from a coal formation
US7011154B2 (en) 2000-04-24 2006-03-14 Shell Oil Company In situ recovery from a kerogen and liquid hydrocarbon containing formation
US6997255B2 (en) 2000-04-24 2006-02-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation in a reducing environment
US6581684B2 (en) 2000-04-24 2003-06-24 Shell Oil Company In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US6994161B2 (en) 2000-04-24 2006-02-07 Kevin Albert Maher In situ thermal processing of a coal formation with a selected moisture content
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6994168B2 (en) 2000-04-24 2006-02-07 Scott Lee Wellington In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US6591907B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a coal formation with a selected vitrinite reflectance
US6994160B2 (en) 2000-04-24 2006-02-07 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range
US6991031B2 (en) 2000-04-24 2006-01-31 Shell Oil Company In situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products
US20020027001A1 (en) * 2000-04-24 2002-03-07 Wellington Scott L. In situ thermal processing of a coal formation to produce a selected gas mixture
US6973967B2 (en) 2000-04-24 2005-12-13 Shell Oil Company Situ thermal processing of a coal formation using pressure and/or temperature control
US20110088904A1 (en) * 2000-04-24 2011-04-21 De Rouffignac Eric Pierre In situ recovery from a hydrocarbon containing formation
US20090101346A1 (en) * 2000-04-24 2009-04-23 Shell Oil Company, Inc. In situ recovery from a hydrocarbon containing formation
US7798221B2 (en) 2000-04-24 2010-09-21 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6966372B2 (en) 2000-04-24 2005-11-22 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
US6959761B2 (en) 2000-04-24 2005-11-01 Shell Oil Company In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
US6953087B2 (en) 2000-04-24 2005-10-11 Shell Oil Company Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US6948563B2 (en) 2000-04-24 2005-09-27 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US6923258B2 (en) 2000-04-24 2005-08-02 Shell Oil Company In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6607033B2 (en) 2000-04-24 2003-08-19 Shell Oil Company In Situ thermal processing of a coal formation to produce a condensate
US6913078B2 (en) 2000-04-24 2005-07-05 Shell Oil Company In Situ thermal processing of hydrocarbons within a relatively impermeable formation
US6609570B2 (en) 2000-04-24 2003-08-26 Shell Oil Company In situ thermal processing of a coal formation and ammonia production
US6910536B2 (en) * 2000-04-24 2005-06-28 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US6902004B2 (en) 2000-04-24 2005-06-07 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a movable heating element
US6902003B2 (en) 2000-04-24 2005-06-07 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
US6896053B2 (en) 2000-04-24 2005-05-24 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources
US6889769B2 (en) 2000-04-24 2005-05-10 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected moisture content
US6880635B2 (en) 2000-04-24 2005-04-19 Shell Oil Company In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio
US6877554B2 (en) 2000-04-24 2005-04-12 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control
US6871707B2 (en) 2000-04-24 2005-03-29 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration
US6866097B2 (en) 2000-04-24 2005-03-15 Shell Oil Company In situ thermal processing of a coal formation to increase a permeability/porosity of the formation
US6820688B2 (en) 2000-04-24 2004-11-23 Shell Oil Company In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio
US6805195B2 (en) 2000-04-24 2004-10-19 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US6591906B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US6688387B1 (en) 2000-04-24 2004-02-10 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6789625B2 (en) 2000-04-24 2004-09-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
US6702016B2 (en) 2000-04-24 2004-03-09 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US6708758B2 (en) 2000-04-24 2004-03-23 Shell Oil Company In situ thermal processing of a coal formation leaving one or more selected unprocessed areas
US6712137B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material
US6712135B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a coal formation in reducing environment
US6712136B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing
US6715549B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US6715547B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
US6719047B2 (en) 2000-04-24 2004-04-13 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
US6722431B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of hydrocarbons within a relatively permeable formation
US6722430B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio
US6722429B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
US6725928B2 (en) * 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a coal formation using a distributed combustor
US6725921B2 (en) 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a coal formation by controlling a pressure of the formation
US6725920B2 (en) 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US6729397B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US6729396B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
US6729395B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells
US6729401B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation and ammonia production
US6732795B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material
US6732794B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6732796B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
US6736215B2 (en) 2000-04-24 2004-05-18 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration
US6739394B2 (en) 2000-04-24 2004-05-25 Shell Oil Company Production of synthesis gas from a hydrocarbon containing formation
US6739393B2 (en) 2000-04-24 2004-05-25 Shell Oil Company In situ thermal processing of a coal formation and tuning production
US6742587B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
US6742588B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US6742593B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
US6742589B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a coal formation using repeating triangular patterns of heat sources
US6745831B2 (en) 2000-04-24 2004-06-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation
US6745837B2 (en) 2000-04-24 2004-06-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US6745832B2 (en) 2000-04-24 2004-06-08 Shell Oil Company Situ thermal processing of a hydrocarbon containing formation to control product composition
US6749021B2 (en) 2000-04-24 2004-06-15 Shell Oil Company In situ thermal processing of a coal formation using a controlled heating rate
US6752210B2 (en) 2000-04-24 2004-06-22 Shell Oil Company In situ thermal processing of a coal formation using heat sources positioned within open wellbores
US6758268B2 (en) 2000-04-24 2004-07-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate
US6761216B2 (en) 2000-04-24 2004-07-13 Shell Oil Company In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas
US6763886B2 (en) 2000-04-24 2004-07-20 Shell Oil Company In situ thermal processing of a coal formation with carbon dioxide sequestration
US6769485B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ production of synthesis gas from a coal formation through a heat source wellbore
US6991036B2 (en) 2001-04-24 2006-01-31 Shell Oil Company Thermal processing of a relatively permeable formation
US20030131993A1 (en) * 2001-04-24 2003-07-17 Etuan Zhang In situ thermal processing of an oil shale formation with a selected property
US7225866B2 (en) 2001-04-24 2007-06-05 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030098605A1 (en) * 2001-04-24 2003-05-29 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation
US7096942B1 (en) 2001-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a relatively permeable formation while controlling pressure
US20030098149A1 (en) * 2001-04-24 2003-05-29 Wellington Scott Lee In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US20030100451A1 (en) * 2001-04-24 2003-05-29 Messier Margaret Ann In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030102126A1 (en) * 2001-04-24 2003-06-05 Sumnu-Dindoruk Meliha Deniz In situ thermal recovery from a relatively permeable formation with controlled production rate
US7066254B2 (en) 2001-04-24 2006-06-27 Shell Oil Company In situ thermal processing of a tar sands formation
US6877555B2 (en) 2001-04-24 2005-04-12 Shell Oil Company In situ thermal processing of an oil shale formation while inhibiting coking
US6880633B2 (en) 2001-04-24 2005-04-19 Shell Oil Company In situ thermal processing of an oil shale formation to produce a desired product
US20040211557A1 (en) * 2001-04-24 2004-10-28 Cole Anthony Thomas Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US7055600B2 (en) 2001-04-24 2006-06-06 Shell Oil Company In situ thermal recovery from a relatively permeable formation with controlled production rate
US7051811B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal processing through an open wellbore in an oil shale formation
US20030173078A1 (en) * 2001-04-24 2003-09-18 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a condensate
US7051807B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal recovery from a relatively permeable formation with quality control
US20030173080A1 (en) * 2001-04-24 2003-09-18 Berchenko Ilya Emil In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030164239A1 (en) * 2001-04-24 2003-09-04 Wellington Scott Lee In situ thermal processing of an oil shale formation in a reducing environment
US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
US6915850B2 (en) 2001-04-24 2005-07-12 Shell Oil Company In situ thermal processing of an oil shale formation having permeable and impermeable sections
US6918443B2 (en) 2001-04-24 2005-07-19 Shell Oil Company In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US6918442B2 (en) 2001-04-24 2005-07-19 Shell Oil Company In situ thermal processing of an oil shale formation in a reducing environment
US20030148894A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. In situ thermal processing of an oil shale formation using a natural distributed combustor
US6923257B2 (en) 2001-04-24 2005-08-02 Shell Oil Company In situ thermal processing of an oil shale formation to produce a condensate
US6929067B2 (en) 2001-04-24 2005-08-16 Shell Oil Company Heat sources with conductive material for in situ thermal processing of an oil shale formation
US7040399B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of an oil shale formation using a controlled heating rate
US6948562B2 (en) 2001-04-24 2005-09-27 Shell Oil Company Production of a blending agent using an in situ thermal process in a relatively permeable formation
US20030146002A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. Removable heat sources for in situ thermal processing of an oil shale formation
US6951247B2 (en) 2001-04-24 2005-10-04 Shell Oil Company In situ thermal processing of an oil shale formation using horizontal heat sources
US20030142964A1 (en) * 2001-04-24 2003-07-31 Wellington Scott Lee In situ thermal processing of an oil shale formation using a controlled heating rate
US20030141068A1 (en) * 2001-04-24 2003-07-31 Pierre De Rouffignac Eric In situ thermal processing through an open wellbore in an oil shale formation
US6964300B2 (en) 2001-04-24 2005-11-15 Shell Oil Company In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030141066A1 (en) * 2001-04-24 2003-07-31 Karanikas John Michael In situ thermal processing of an oil shale formation while inhibiting coking
US6966374B2 (en) 2001-04-24 2005-11-22 Shell Oil Company In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US7040400B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively impermeable formation using an open wellbore
US7040398B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively permeable formation in a reducing environment
US7735935B2 (en) 2001-04-24 2010-06-15 Shell Oil Company In situ thermal processing of an oil shale formation containing carbonate minerals
US20030141067A1 (en) * 2001-04-24 2003-07-31 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation to increase permeability of the formation
US20100270015A1 (en) * 2001-04-24 2010-10-28 Shell Oil Company In situ thermal processing of an oil shale formation
US20030137181A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US20030136558A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a desired product
US20030102125A1 (en) * 2001-04-24 2003-06-05 Wellington Scott Lee In situ thermal processing of a relatively permeable formation in a reducing environment
US7032660B2 (en) * 2001-04-24 2006-04-25 Shell Oil Company In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030102130A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation with quality control
US7013972B2 (en) 2001-04-24 2006-03-21 Shell Oil Company In situ thermal processing of an oil shale formation using a natural distributed combustor
US20030136559A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing while controlling pressure in an oil shale formation
US6981548B2 (en) 2001-04-24 2006-01-03 Shell Oil Company In situ thermal recovery from a relatively permeable formation
US20030102124A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal processing of a blending agent from a relatively permeable formation
US6991032B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US7004247B2 (en) 2001-04-24 2006-02-28 Shell Oil Company Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US7004251B2 (en) 2001-04-24 2006-02-28 Shell Oil Company In situ thermal processing and remediation of an oil shale formation
US6991033B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing while controlling pressure in an oil shale formation
US20030131995A1 (en) * 2001-04-24 2003-07-17 De Rouffignac Eric Pierre In situ thermal processing of a relatively impermeable formation to increase permeability of the formation
US20030131996A1 (en) * 2001-04-24 2003-07-17 Vinegar Harold J. In situ thermal processing of an oil shale formation having permeable and impermeable sections
US6994169B2 (en) 2001-04-24 2006-02-07 Shell Oil Company In situ thermal processing of an oil shale formation with a selected property
US20040211554A1 (en) * 2001-04-24 2004-10-28 Vinegar Harold J. Heat sources with conductive material for in situ thermal processing of an oil shale formation
US20030116315A1 (en) * 2001-04-24 2003-06-26 Wellington Scott Lee In situ thermal processing of a relatively permeable formation
US6997518B2 (en) 2001-04-24 2006-02-14 Shell Oil Company In situ thermal processing and solution mining of an oil shale formation
US20030111223A1 (en) * 2001-04-24 2003-06-19 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation using horizontal heat sources
US7086465B2 (en) 2001-10-24 2006-08-08 Shell Oil Company In situ production of a blending agent from a hydrocarbon containing formation
US7128153B2 (en) 2001-10-24 2006-10-31 Shell Oil Company Treatment of a hydrocarbon containing formation after heating
US20040040715A1 (en) * 2001-10-24 2004-03-04 Wellington Scott Lee In situ production of a blending agent from a hydrocarbon containing formation
US20030192693A1 (en) * 2001-10-24 2003-10-16 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US20030201098A1 (en) * 2001-10-24 2003-10-30 Karanikas John Michael In situ recovery from a hydrocarbon containing formation using one or more simulations
US7461691B2 (en) 2001-10-24 2008-12-09 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US8627887B2 (en) 2001-10-24 2014-01-14 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20030205378A1 (en) * 2001-10-24 2003-11-06 Wellington Scott Lee In situ recovery from lean and rich zones in a hydrocarbon containing formation
US6969123B2 (en) 2001-10-24 2005-11-29 Shell Oil Company Upgrading and mining of coal
US6932155B2 (en) 2001-10-24 2005-08-23 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US7051808B1 (en) 2001-10-24 2006-05-30 Shell Oil Company Seismic monitoring of in situ conversion in a hydrocarbon containing formation
US20030173082A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of a heavy oil diatomite formation
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US20050092483A1 (en) * 2001-10-24 2005-05-05 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US7063145B2 (en) 2001-10-24 2006-06-20 Shell Oil Company Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US7090013B2 (en) 2001-10-24 2006-08-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US20030192691A1 (en) * 2001-10-24 2003-10-16 Vinegar Harold J. In situ recovery from a hydrocarbon containing formation using barriers
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7077199B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ thermal processing of an oil reservoir formation
US7077198B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ recovery from a hydrocarbon containing formation using barriers
US20070209799A1 (en) * 2001-10-24 2007-09-13 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7156176B2 (en) 2001-10-24 2007-01-02 Shell Oil Company Installation and use of removable heaters in a hydrocarbon containing formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US20030196810A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. Treatment of a hydrocarbon containing formation after heating
US20030196801A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US7066257B2 (en) 2001-10-24 2006-06-27 Shell Oil Company In situ recovery from lean and rich zones in a hydrocarbon containing formation
US7100994B2 (en) 2001-10-24 2006-09-05 Shell Oil Company Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
US7104319B2 (en) 2001-10-24 2006-09-12 Shell Oil Company In situ thermal processing of a heavy oil diatomite formation
US7114566B2 (en) 2001-10-24 2006-10-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US6991045B2 (en) 2001-10-24 2006-01-31 Shell Oil Company Forming openings in a hydrocarbon containing formation using magnetic tracking
US7219734B2 (en) 2002-10-24 2007-05-22 Shell Oil Company Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US20040144541A1 (en) * 2002-10-24 2004-07-29 Picha Mark Gregory Forming wellbores using acoustic methods
US8238730B2 (en) 2002-10-24 2012-08-07 Shell Oil Company High voltage temperature limited heaters
US8224164B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Insulated conductor temperature limited heaters
US7073578B2 (en) 2002-10-24 2006-07-11 Shell Oil Company Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US7121341B2 (en) 2002-10-24 2006-10-17 Shell Oil Company Conductor-in-conduit temperature limited heaters
US20040145969A1 (en) * 2002-10-24 2004-07-29 Taixu Bai Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US8224163B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Variable frequency temperature limited heaters
US7640980B2 (en) 2003-04-24 2010-01-05 Shell Oil Company Thermal processes for subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US7360588B2 (en) 2003-04-24 2008-04-22 Shell Oil Company Thermal processes for subsurface formations
US8579031B2 (en) 2003-04-24 2013-11-12 Shell Oil Company Thermal processes for subsurface formations
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
US20050269091A1 (en) * 2004-04-23 2005-12-08 Guillermo Pastor-Sanz Reducing viscosity of oil for production from a hydrocarbon containing formation
US7353872B2 (en) 2004-04-23 2008-04-08 Shell Oil Company Start-up of temperature limited heaters using direct current (DC)
US20050269092A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Vacuum pumping of conductor-in-conduit heaters
US20050269088A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Inhibiting effects of sloughing in wellbores
US20050269094A1 (en) * 2004-04-23 2005-12-08 Harris Christopher K Triaxial temperature limited heater
US20050269089A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Temperature limited heaters using modulated DC power
US20050269090A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US20050269093A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Variable frequency temperature limited heaters
US20050269077A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Start-up of temperature limited heaters using direct current (DC)
US7510000B2 (en) 2004-04-23 2009-03-31 Shell Oil Company Reducing viscosity of oil for production from a hydrocarbon containing formation
US7490665B2 (en) 2004-04-23 2009-02-17 Shell Oil Company Variable frequency temperature limited heaters
US7481274B2 (en) 2004-04-23 2009-01-27 Shell Oil Company Temperature limited heaters with relatively constant current
US20050269095A1 (en) * 2004-04-23 2005-12-08 Fairbanks Michael D Inhibiting reflux in a heated well of an in situ conversion system
US20050269313A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with high power factors
US7431076B2 (en) 2004-04-23 2008-10-07 Shell Oil Company Temperature limited heaters using modulated DC power
US7424915B2 (en) 2004-04-23 2008-09-16 Shell Oil Company Vacuum pumping of conductor-in-conduit heaters
US7320364B2 (en) 2004-04-23 2008-01-22 Shell Oil Company Inhibiting reflux in a heated well of an in situ conversion system
US20060005968A1 (en) * 2004-04-23 2006-01-12 Vinegar Harold J Temperature limited heaters with relatively constant current
US20060289536A1 (en) * 2004-04-23 2006-12-28 Vinegar Harold J Subsurface electrical heaters using nitride insulation
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US7383877B2 (en) 2004-04-23 2008-06-10 Shell Oil Company Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7370704B2 (en) 2004-04-23 2008-05-13 Shell Oil Company Triaxial temperature limited heater
US7357180B2 (en) 2004-04-23 2008-04-15 Shell Oil Company Inhibiting effects of sloughing in wellbores
US20070045265A1 (en) * 2005-04-22 2007-03-01 Mckinzie Billy J Ii Low temperature barriers with heat interceptor wells for in situ processes
US8027571B2 (en) 2005-04-22 2011-09-27 Shell Oil Company In situ conversion process systems utilizing wellbores in at least two regions of a formation
US20070045268A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Varying properties along lengths of temperature limited heaters
US7575053B2 (en) 2005-04-22 2009-08-18 Shell Oil Company Low temperature monitoring system for subsurface barriers
US20070108201A1 (en) * 2005-04-22 2007-05-17 Vinegar Harold J Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US20070045267A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Subsurface connection methods for subsurface heaters
US7575052B2 (en) 2005-04-22 2009-08-18 Shell Oil Company In situ conversion process utilizing a closed loop heating system
US20070119098A1 (en) * 2005-04-22 2007-05-31 Zaida Diaz Treatment of gas from an in situ conversion process
US20070108200A1 (en) * 2005-04-22 2007-05-17 Mckinzie Billy J Ii Low temperature barrier wellbores formed using water flushing
US7546873B2 (en) 2005-04-22 2009-06-16 Shell Oil Company Low temperature barriers for use with in situ processes
US7831133B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US20070045266A1 (en) * 2005-04-22 2007-03-01 Sandberg Chester L In situ conversion process utilizing a closed loop heating system
US7831134B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Grouped exposed metal heaters
US7860377B2 (en) 2005-04-22 2010-12-28 Shell Oil Company Subsurface connection methods for subsurface heaters
US7527094B2 (en) 2005-04-22 2009-05-05 Shell Oil Company Double barrier system for an in situ conversion process
US20070133960A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J In situ conversion process systems utilizing wellbores in at least two regions of a formation
US7942197B2 (en) 2005-04-22 2011-05-17 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US7986869B2 (en) 2005-04-22 2011-07-26 Shell Oil Company Varying properties along lengths of temperature limited heaters
US8070840B2 (en) 2005-04-22 2011-12-06 Shell Oil Company Treatment of gas from an in situ conversion process
US20070133961A1 (en) * 2005-04-22 2007-06-14 Fairbanks Michael D Methods and systems for producing fluid from an in situ conversion process
US7500528B2 (en) 2005-04-22 2009-03-10 Shell Oil Company Low temperature barrier wellbores formed using water flushing
US20080217321A1 (en) * 2005-04-22 2008-09-11 Vinegar Harold J Temperature limited heater utilizing non-ferromagnetic conductor
US8230927B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US8233782B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Grouped exposed metal heaters
US20070133959A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J Grouped exposed metal heaters
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US20070137856A1 (en) * 2005-04-22 2007-06-21 Mckinzie Billy J Double barrier system for an in situ conversion process
US20070144732A1 (en) * 2005-04-22 2007-06-28 Kim Dong S Low temperature barriers for use with in situ processes
US7435037B2 (en) 2005-04-22 2008-10-14 Shell Oil Company Low temperature barriers with heat interceptor wells for in situ processes
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
US20070039729A1 (en) * 2005-07-18 2007-02-22 Oil Sands Underground Mining Corporation Method of increasing reservoir permeability
US8287050B2 (en) 2005-07-18 2012-10-16 Osum Oil Sands Corp. Method of increasing reservoir permeability
US20070095536A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Cogeneration systems and processes for treating hydrocarbon containing formations
US20110168394A1 (en) * 2005-10-24 2011-07-14 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070131420A1 (en) * 2005-10-24 2007-06-14 Weijian Mo Methods of cracking a crude product to produce additional crude products
US7584789B2 (en) 2005-10-24 2009-09-08 Shell Oil Company Methods of cracking a crude product to produce additional crude products
US7581589B2 (en) 2005-10-24 2009-09-01 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20080107577A1 (en) * 2005-10-24 2008-05-08 Vinegar Harold J Varying heating in dawsonite zones in hydrocarbon containing formations
US7635025B2 (en) 2005-10-24 2009-12-22 Shell Oil Company Cogeneration systems and processes for treating hydrocarbon containing formations
US7591310B2 (en) 2005-10-24 2009-09-22 Shell Oil Company Methods of hydrotreating a liquid stream to remove clogging compounds
US20070125533A1 (en) * 2005-10-24 2007-06-07 Minderhoud Johannes K Methods of hydrotreating a liquid stream to remove clogging compounds
US8606091B2 (en) 2005-10-24 2013-12-10 Shell Oil Company Subsurface heaters with low sulfidation rates
US7562706B2 (en) 2005-10-24 2009-07-21 Shell Oil Company Systems and methods for producing hydrocarbons from tar sands formations
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
US7559368B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Solution mining systems and methods for treating hydrocarbon containing formations
US7559367B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Temperature limited heater with a conduit substantially electrically isolated from the formation
US20070131419A1 (en) * 2005-10-24 2007-06-14 Maria Roes Augustinus W Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US7556096B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Varying heating in dawsonite zones in hydrocarbon containing formations
US20070131427A1 (en) * 2005-10-24 2007-06-14 Ruijian Li Systems and methods for producing hydrocarbons from tar sands formations
US7556095B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
US20070221377A1 (en) * 2005-10-24 2007-09-27 Vinegar Harold J Solution mining systems and methods for treating hydrocarbon containing formations
US7549470B2 (en) 2005-10-24 2009-06-23 Shell Oil Company Solution mining and heating by oxidation for treating hydrocarbon containing formations
US20070127897A1 (en) * 2005-10-24 2007-06-07 John Randy C Subsurface heaters with low sulfidation rates
US20090301724A1 (en) * 2005-10-24 2009-12-10 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US8857506B2 (en) 2006-04-21 2014-10-14 Shell Oil Company Alternate energy source usage methods for in situ heat treatment processes
US20080173449A1 (en) * 2006-04-21 2008-07-24 Thomas David Fowler Sour gas injection for use with in situ heat treatment
US20080035705A1 (en) * 2006-04-21 2008-02-14 Menotti James L Welding shield for coupling heaters
US20080035348A1 (en) * 2006-04-21 2008-02-14 Vitek John M Temperature limited heaters using phase transformation of ferromagnetic material
US7866385B2 (en) 2006-04-21 2011-01-11 Shell Oil Company Power systems utilizing the heat of produced formation fluid
US7912358B2 (en) 2006-04-21 2011-03-22 Shell Oil Company Alternate energy source usage for in situ heat treatment processes
US20080173442A1 (en) * 2006-04-21 2008-07-24 Vinegar Harold J Sulfur barrier for use with in situ processes for treating formations
US20080173444A1 (en) * 2006-04-21 2008-07-24 Francis Marion Stone Alternate energy source usage for in situ heat treatment processes
US20080174115A1 (en) * 2006-04-21 2008-07-24 Gene Richard Lambirth Power systems utilizing the heat of produced formation fluid
US20100272595A1 (en) * 2006-04-21 2010-10-28 Shell Oil Company High strength alloys
US20080173450A1 (en) * 2006-04-21 2008-07-24 Bernard Goldberg Time sequenced heating of multiple layers in a hydrocarbon containing formation
US7793722B2 (en) 2006-04-21 2010-09-14 Shell Oil Company Non-ferromagnetic overburden casing
US7785427B2 (en) 2006-04-21 2010-08-31 Shell Oil Company High strength alloys
US7533719B2 (en) 2006-04-21 2009-05-19 Shell Oil Company Wellhead with non-ferromagnetic materials
US7683296B2 (en) 2006-04-21 2010-03-23 Shell Oil Company Adjusting alloy compositions for selected properties in temperature limited heaters
US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US20080035347A1 (en) * 2006-04-21 2008-02-14 Brady Michael P Adjusting alloy compositions for selected properties in temperature limited heaters
US8083813B2 (en) 2006-04-21 2011-12-27 Shell Oil Company Methods of producing transportation fuel
US7635023B2 (en) 2006-04-21 2009-12-22 Shell Oil Company Time sequenced heating of multiple layers in a hydrocarbon containing formation
US7631689B2 (en) 2006-04-21 2009-12-15 Shell Oil Company Sulfur barrier for use with in situ processes for treating formations
US8127865B2 (en) 2006-04-21 2012-03-06 Osum Oil Sands Corp. Method of drilling from a shaft for underground recovery of hydrocarbons
US20080035346A1 (en) * 2006-04-21 2008-02-14 Vijay Nair Methods of producing transportation fuel
US20080038144A1 (en) * 2006-04-21 2008-02-14 Maziasz Phillip J High strength alloys
US20080017416A1 (en) * 2006-04-21 2008-01-24 Oil Sands Underground Mining, Inc. Method of drilling from a shaft for underground recovery of hydrocarbons
US8192682B2 (en) 2006-04-21 2012-06-05 Shell Oil Company High strength alloys
US7597147B2 (en) 2006-04-21 2009-10-06 Shell Oil Company Temperature limited heaters using phase transformation of ferromagnetic material
US7604052B2 (en) 2006-04-21 2009-10-20 Shell Oil Company Compositions produced using an in situ heat treatment process
US7610962B2 (en) 2006-04-21 2009-11-03 Shell Oil Company Sour gas injection for use with in situ heat treatment
US20080073079A1 (en) * 2006-09-26 2008-03-27 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20100163227A1 (en) * 2006-09-26 2010-07-01 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US7677673B2 (en) 2006-09-26 2010-03-16 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20100224370A1 (en) * 2006-09-29 2010-09-09 Osum Oil Sands Corp Method of heating hydrocarbons
US20080078552A1 (en) * 2006-09-29 2008-04-03 Osum Oil Sands Corp. Method of heating hydrocarbons
US7644769B2 (en) 2006-10-16 2010-01-12 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US20080087422A1 (en) * 2006-10-16 2008-04-17 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US20080217003A1 (en) * 2006-10-20 2008-09-11 Myron Ira Kuhlman Gas injection to inhibit migration during an in situ heat treatment process
US20080142216A1 (en) * 2006-10-20 2008-06-19 Vinegar Harold J Treating tar sands formations with dolomite
US20080217015A1 (en) * 2006-10-20 2008-09-11 Vinegar Harold J Heating hydrocarbon containing formations in a spiral startup staged sequence
US7635024B2 (en) 2006-10-20 2009-12-22 Shell Oil Company Heating tar sands formations to visbreaking temperatures
US20080277113A1 (en) * 2006-10-20 2008-11-13 George Leo Stegemeier Heating tar sands formations while controlling pressure
US20080135254A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J In situ heat treatment process utilizing a closed loop heating system
US7644765B2 (en) 2006-10-20 2010-01-12 Shell Oil Company Heating tar sands formations while controlling pressure
US7845411B2 (en) 2006-10-20 2010-12-07 Shell Oil Company In situ heat treatment process utilizing a closed loop heating system
US7673681B2 (en) 2006-10-20 2010-03-09 Shell Oil Company Treating tar sands formations with karsted zones
US8555971B2 (en) 2006-10-20 2013-10-15 Shell Oil Company Treating tar sands formations with dolomite
US7677310B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Creating and maintaining a gas cap in tar sands formations
US7677314B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Method of condensing vaporized water in situ to treat tar sands formations
US7631690B2 (en) 2006-10-20 2009-12-15 Shell Oil Company Heating hydrocarbon containing formations in a spiral startup staged sequence
US20080135253A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J Treating tar sands formations with karsted zones
US7681647B2 (en) 2006-10-20 2010-03-23 Shell Oil Company Method of producing drive fluid in situ in tar sands formations
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US7841401B2 (en) 2006-10-20 2010-11-30 Shell Oil Company Gas injection to inhibit migration during an in situ heat treatment process
US8191630B2 (en) 2006-10-20 2012-06-05 Shell Oil Company Creating fluid injectivity in tar sands formations
US7540324B2 (en) 2006-10-20 2009-06-02 Shell Oil Company Heating hydrocarbon containing formations in a checkerboard pattern staged process
US7703513B2 (en) 2006-10-20 2010-04-27 Shell Oil Company Wax barrier for use with in situ processes for treating formations
US20090014181A1 (en) * 2006-10-20 2009-01-15 Vinegar Harold J Creating and maintaining a gas cap in tar sands formations
US20080142217A1 (en) * 2006-10-20 2008-06-19 Roelof Pieterson Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US20080185147A1 (en) * 2006-10-20 2008-08-07 Vinegar Harold J Wax barrier for use with in situ processes for treating formations
US20080217004A1 (en) * 2006-10-20 2008-09-11 De Rouffignac Eric Pierre Heating hydrocarbon containing formations in a checkerboard pattern staged process
US7717171B2 (en) 2006-10-20 2010-05-18 Shell Oil Company Moving hydrocarbons through portions of tar sands formations with a fluid
US7730945B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US7730946B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Treating tar sands formations with dolomite
US7730947B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Creating fluid injectivity in tar sands formations
US20100276141A1 (en) * 2006-10-20 2010-11-04 Shell Oil Company Creating fluid injectivity in tar sands formations
US20080217016A1 (en) * 2006-10-20 2008-09-11 George Leo Stegemeier Creating fluid injectivity in tar sands formations
US20080135244A1 (en) * 2006-10-20 2008-06-12 David Scott Miller Heating hydrocarbon containing formations in a line drive staged process
US7562707B2 (en) 2006-10-20 2009-07-21 Shell Oil Company Heating hydrocarbon containing formations in a line drive staged process
US20090014180A1 (en) * 2006-10-20 2009-01-15 George Leo Stegemeier Moving hydrocarbons through portions of tar sands formations with a fluid
US20080283246A1 (en) * 2006-10-20 2008-11-20 John Michael Karanikas Heating tar sands formations to visbreaking temperatures
US8313152B2 (en) 2006-11-22 2012-11-20 Osum Oil Sands Corp. Recovery of bitumen by hydraulic excavation
US8459359B2 (en) 2007-04-20 2013-06-11 Shell Oil Company Treating nahcolite containing formations and saline zones
US20090126929A1 (en) * 2007-04-20 2009-05-21 Vinegar Harold J Treating nahcolite containing formations and saline zones
US20090321075A1 (en) * 2007-04-20 2009-12-31 Christopher Kelvin Harris Parallel heater system for subsurface formations
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US20090078461A1 (en) * 2007-04-20 2009-03-26 Arthur James Mansure Drilling subsurface wellbores with cutting structures
US20090095478A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US8042610B2 (en) 2007-04-20 2011-10-25 Shell Oil Company Parallel heater system for subsurface formations
US20090084547A1 (en) * 2007-04-20 2009-04-02 Walter Farman Farmayan Downhole burner systems and methods for heating subsurface formations
US7950453B2 (en) 2007-04-20 2011-05-31 Shell Oil Company Downhole burner systems and methods for heating subsurface formations
US20090090509A1 (en) * 2007-04-20 2009-04-09 Vinegar Harold J In situ recovery from residually heated sections in a hydrocarbon containing formation
US7931086B2 (en) 2007-04-20 2011-04-26 Shell Oil Company Heating systems for heating subsurface formations
US8327681B2 (en) 2007-04-20 2012-12-11 Shell Oil Company Wellbore manufacturing processes for in situ heat treatment processes
US9181780B2 (en) 2007-04-20 2015-11-10 Shell Oil Company Controlling and assessing pressure conditions during treatment of tar sands formations
US7832484B2 (en) 2007-04-20 2010-11-16 Shell Oil Company Molten salt as a heat transfer fluid for heating a subsurface formation
US7841425B2 (en) 2007-04-20 2010-11-30 Shell Oil Company Drilling subsurface wellbores with cutting structures
US7841408B2 (en) 2007-04-20 2010-11-30 Shell Oil Company In situ heat treatment from multiple layers of a tar sands formation
US8381815B2 (en) 2007-04-20 2013-02-26 Shell Oil Company Production from multiple zones of a tar sands formation
US8662175B2 (en) 2007-04-20 2014-03-04 Shell Oil Company Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US7849922B2 (en) 2007-04-20 2010-12-14 Shell Oil Company In situ recovery from residually heated sections in a hydrocarbon containing formation
US20090120646A1 (en) * 2007-04-20 2009-05-14 Dong Sub Kim Electrically isolating insulated conductor heater
US20090095477A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Heating systems for heating subsurface formations
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US20090095479A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Production from multiple zones of a tar sands formation
US20090095476A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Molten salt as a heat transfer fluid for heating a subsurface formation
US20090095480A1 (en) * 2007-04-20 2009-04-16 Vinegar Harold J In situ heat treatment of a tar sands formation after drive process treatment
US20090084707A1 (en) * 2007-09-28 2009-04-02 Osum Oil Sands Corp. Method of upgrading bitumen and heavy oil
US8113272B2 (en) 2007-10-19 2012-02-14 Shell Oil Company Three-phase heaters with common overburden sections for heating subsurface formations
US20090194282A1 (en) * 2007-10-19 2009-08-06 Gary Lee Beer In situ oxidation of subsurface formations
US8196658B2 (en) 2007-10-19 2012-06-12 Shell Oil Company Irregular spacing of heat sources for treating hydrocarbon containing formations
US7866388B2 (en) 2007-10-19 2011-01-11 Shell Oil Company High temperature methods for forming oxidizer fuel
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US20090200025A1 (en) * 2007-10-19 2009-08-13 Jose Luis Bravo High temperature methods for forming oxidizer fuel
US8011451B2 (en) 2007-10-19 2011-09-06 Shell Oil Company Ranging methods for developing wellbores in subsurface formations
US8272455B2 (en) 2007-10-19 2012-09-25 Shell Oil Company Methods for forming wellbores in heated formations
US20090194269A1 (en) * 2007-10-19 2009-08-06 Vinegar Harold J Three-phase heaters with common overburden sections for heating subsurface formations
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US8240774B2 (en) 2007-10-19 2012-08-14 Shell Oil Company Solution mining and in situ treatment of nahcolite beds
US20090194329A1 (en) * 2007-10-19 2009-08-06 Rosalvina Ramona Guimerans Methods for forming wellbores in heated formations
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US8146661B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Cryogenic treatment of gas
US8146669B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Multi-step heater deployment in a subsurface formation
US20090194333A1 (en) * 2007-10-19 2009-08-06 Macdonald Duncan Ranging methods for developing wellbores in subsurface formations
US20090194524A1 (en) * 2007-10-19 2009-08-06 Dong Sub Kim Methods for forming long subsurface heaters
US8162059B2 (en) 2007-10-19 2012-04-24 Shell Oil Company Induction heaters used to heat subsurface formations
US20090200854A1 (en) * 2007-10-19 2009-08-13 Vinegar Harold J Solution mining and in situ treatment of nahcolite beds
US8276661B2 (en) 2007-10-19 2012-10-02 Shell Oil Company Heating subsurface formations by oxidizing fuel on a fuel carrier
US20090200031A1 (en) * 2007-10-19 2009-08-13 David Scott Miller Irregular spacing of heat sources for treating hydrocarbon containing formations
US8167960B2 (en) 2007-10-22 2012-05-01 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090100754A1 (en) * 2007-10-22 2009-04-23 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090139716A1 (en) * 2007-12-03 2009-06-04 Osum Oil Sands Corp. Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells
US8176982B2 (en) 2008-02-06 2012-05-15 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US20090194280A1 (en) * 2008-02-06 2009-08-06 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US20090260823A1 (en) * 2008-04-18 2009-10-22 Robert George Prince-Wright Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8562078B2 (en) 2008-04-18 2013-10-22 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8177305B2 (en) 2008-04-18 2012-05-15 Shell Oil Company Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8636323B2 (en) 2008-04-18 2014-01-28 Shell Oil Company Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8172335B2 (en) 2008-04-18 2012-05-08 Shell Oil Company Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US8162405B2 (en) 2008-04-18 2012-04-24 Shell Oil Company Using tunnels for treating subsurface hydrocarbon containing formations
US8752904B2 (en) 2008-04-18 2014-06-17 Shell Oil Company Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8151907B2 (en) 2008-04-18 2012-04-10 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20090272533A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US9528322B2 (en) 2008-04-18 2016-12-27 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20090272578A1 (en) * 2008-04-18 2009-11-05 Macdonald Duncan Charles Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20090272535A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Using tunnels for treating subsurface hydrocarbon containing formations
US20100071904A1 (en) * 2008-04-18 2010-03-25 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8209192B2 (en) 2008-05-20 2012-06-26 Osum Oil Sands Corp. Method of managing carbon reduction for hydrocarbon producers
US20100096137A1 (en) * 2008-10-13 2010-04-22 Scott Vinh Nguyen Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US20100108379A1 (en) * 2008-10-13 2010-05-06 David Alston Edbury Systems and methods of forming subsurface wellbores
US20100101783A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Using self-regulating nuclear reactors in treating a subsurface formation
US20100101784A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8881806B2 (en) 2008-10-13 2014-11-11 Shell Oil Company Systems and methods for treating a subsurface formation with electrical conductors
US20100224368A1 (en) * 2008-10-13 2010-09-09 Stanley Leroy Mason Deployment of insulated conductors for treating subsurface formations
US20100089584A1 (en) * 2008-10-13 2010-04-15 David Booth Burns Double insulated heaters for treating subsurface formations
US8353347B2 (en) 2008-10-13 2013-01-15 Shell Oil Company Deployment of insulated conductors for treating subsurface formations
US20100089586A1 (en) * 2008-10-13 2010-04-15 John Andrew Stanecki Movable heaters for treating subsurface hydrocarbon containing formations
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US20100206570A1 (en) * 2008-10-13 2010-08-19 Ernesto Rafael Fonseca Ocampos Circulated heated transfer fluid systems used to treat a subsurface formation
US8267185B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Circulated heated transfer fluid systems used to treat a subsurface formation
US8267170B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Offset barrier wells in subsurface formations
US8261832B2 (en) 2008-10-13 2012-09-11 Shell Oil Company Heating subsurface formations with fluids
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US9051829B2 (en) 2008-10-13 2015-06-09 Shell Oil Company Perforated electrical conductors for treating subsurface formations
US20100108310A1 (en) * 2008-10-13 2010-05-06 Thomas David Fowler Offset barrier wells in subsurface formations
US8281861B2 (en) 2008-10-13 2012-10-09 Shell Oil Company Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US20100147521A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Perforated electrical conductors for treating subsurface formations
US8220539B2 (en) 2008-10-13 2012-07-17 Shell Oil Company Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US9129728B2 (en) 2008-10-13 2015-09-08 Shell Oil Company Systems and methods of forming subsurface wellbores
US20100147522A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Systems and methods for treating a subsurface formation with electrical conductors
US20100155070A1 (en) * 2008-10-13 2010-06-24 Augustinus Wilhelmus Maria Roes Organonitrogen compounds used in treating hydrocarbon containing formations
US20100258291A1 (en) * 2009-04-10 2010-10-14 Everett De St Remey Edward Heated liners for treating subsurface hydrocarbon containing formations
US20100258290A1 (en) * 2009-04-10 2010-10-14 Ronald Marshall Bass Non-conducting heater casings
US8851170B2 (en) 2009-04-10 2014-10-07 Shell Oil Company Heater assisted fluid treatment of a subsurface formation
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
US8434555B2 (en) 2009-04-10 2013-05-07 Shell Oil Company Irregular pattern treatment of a subsurface formation
US20110042084A1 (en) * 2009-04-10 2011-02-24 Robert Bos Irregular pattern treatment of a subsurface formation
US20100258265A1 (en) * 2009-04-10 2010-10-14 John Michael Karanikas Recovering energy from a subsurface formation
US8327932B2 (en) 2009-04-10 2012-12-11 Shell Oil Company Recovering energy from a subsurface formation
US20100258309A1 (en) * 2009-04-10 2010-10-14 Oluropo Rufus Ayodele Heater assisted fluid treatment of a subsurface formation
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
US8875788B2 (en) 2010-04-09 2014-11-04 Shell Oil Company Low temperature inductive heating of subsurface formations
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US9399905B2 (en) 2010-04-09 2016-07-26 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9022109B2 (en) 2010-04-09 2015-05-05 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US8739874B2 (en) 2010-04-09 2014-06-03 Shell Oil Company Methods for heating with slots in hydrocarbon formations
US8833453B2 (en) 2010-04-09 2014-09-16 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US9127538B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Methodologies for treatment of hydrocarbon formations using staged pyrolyzation
US9127523B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Barrier methods for use in subsurface hydrocarbon formations
US20130312950A1 (en) * 2011-02-18 2013-11-28 Linc Energy Ltd. Igniting an underground coal seam in an underground coal gasification process, ucg
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation
WO2014089603A1 (en) * 2012-12-14 2014-06-19 Linc Energy Ltd Apparatus for igniting an underground coal seam
US20180209259A1 (en) * 2015-01-06 2018-07-26 China University Of Mining And Technology Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection
US10378327B2 (en) * 2015-01-06 2019-08-13 China University Of Mining And Technology Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection

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