US20070272413A1 - Technique and apparatus for completing multiple zones - Google Patents
Technique and apparatus for completing multiple zones Download PDFInfo
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- US20070272413A1 US20070272413A1 US11/837,115 US83711507A US2007272413A1 US 20070272413 A1 US20070272413 A1 US 20070272413A1 US 83711507 A US83711507 A US 83711507A US 2007272413 A1 US2007272413 A1 US 2007272413A1
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- valve
- string
- ball
- passageway
- sleeve
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Definitions
- the present invention generally relates to a technique and apparatus to complete multiple zones.
- the layers of the well may be fractured using a pressurized proppant-containing fracturing fluid or other treating fluids such as acid.
- the layers typically are fractured one at time by directing fracturing fluid to the layer being fractured and isolating the other layers.
- a conventional fracturing system includes surface pumps that pressurize fracturing fluid, which may be communicated downhole via the central passageway of a tubular string.
- the string extends downhole through a wellbore that traverses the various layers to be fractured; and the string may include valves (sleeve valves, for example) that are generally aligned with the layers so that the valves may be used to control fluid communication between the central passageway of the string and the layers.
- valves sleeves valves, for example
- the valves may contain many different size ball seats. More specifically, to target and actuate the valves, differently sized balls may be dropped into the central passageway of the string from the surface of the well. Each ball size may be uniquely associated with a different valve, so that a particular ball size is used to actuate a specific valve. The smallest ball opens the deepest valve. More particularly, a free-falling ball lodges, or is “caught” by, a ball seat of the targeted valve. To discriminate between the different valves, each ball seat of the string has a different diameter.
- the ball seat typically is attached to a sleeve of the valve to transfer the force to the sleeve to cause the valve to open.
- each ball seat restricts the cross-sectional flow area through the string (even in the absence of a ball), and the addition of each valve (and ball seat) to the string further restricts the cross-sectional flow area through the central passageway of the string, as the flow through each ball seat becomes progressively more narrow as the number of ball seats increase.
- a large number of valves may significantly restrict the cross-sectional flow area through the string.
- a single activation tool may be selectively positioned in side the central passageway of the string to operate the valves. More specifically, a valve actuation tool may be lowered downhole by a conveyance mechanism (a slickline, for example) to the valve to be opened and to close previously-opened valves.
- a conveyance mechanism a slickline, for example
- a challenge with this alternative is that the fracturing pumps at the surface of the well may need to be idled after each layer is fractured. Furthermore, each valve typically is closed after its associated fracturing operation. The reclosure of the valves demands that the seals and sealing surfaces withstand the fracturing operations without damage.
- the string includes a passageway.
- the tools are mounted in the string and are adapted to be placed in a state to catch objects (free-falling objects and/or pumped-down objects, as just a few examples) of substantially the same size, which are communicated downhole through the passageway.
- the tubular member includes a passageway.
- the first tool is attached to the tubular member, and the first tool is adapted to be placed in a state to catch a first object that is communicated through the passageway and perform an operation after catching the first object.
- the second tool is attached to the tubular member and is adapted to transition to a state to catch a second object communicated through the passageway in response to the operation.
- a technique that is usable with a well includes providing a string that has a plurality of tools and a passageway that extends through the tools.
- the technique includes without running an activation tool into the passageway; and selectively activating the tools of the string to cause each activated tool to transition from a first state in which the activated tool is configured to allow a free-falling object to pass through the passageway to a second state in which the activated tool is configured to catch the free-falling object.
- FIG. 1 depicts a fracturing system according to an embodiment of the invention.
- FIGS. 2 and 3 depict a valve in a closed state and before being placed in a ball catching state according to an embodiment of the invention.
- FIG. 4 depicts the valve in a closed state and after being placed in a ball catching state according to an embodiment of the invention.
- FIGS. 5 and 6 depict the valve in its open state according to an embodiment of the invention.
- FIG. 7 is a flow diagram depicting a technique to fracture layers in a multiple layer well according to an embodiment of the invention.
- FIG. 8 is a perspective view illustrating surface features on a bottom end of a collet sleeve of the valve according to an embodiment of the invention.
- FIGS. 9 and 10 depict different states of a valve that uses a C-ring as a ball catcher in accordance with an embodiment of the invention.
- FIG. 11 is a perspective view of a valve housing according to another embodiment of the invention.
- an embodiment 10 of a fracturing system includes a string 12 that extends into a wellbore 11 that traverses N layers 15 (layers 15 1 , 15 2 , 15 3 . . . 15 N ⁇ 1 and 15 N , depicted as examples) of the well.
- the string 12 includes valves 14 (valves 14 1 , 14 2 , 14 3 . . . 14 N ⁇ 1 and 14 N , depicted as examples), each of which is associated with a particular layer 15 .
- the valve 14 3 is associated with the layer 15 3 .
- the associated valve 14 (initially run downhole in a closed state) is opened by dropping a ball and pumping up, which shifts the sleeve valve open (as described below) to allow communication between the central passageway of the string 12 and the associated layer 15 .
- This communication permits fracturing fluid and pressure to be routed to the associated layer 15 .
- each valve 14 controls communication between a central passageway of the string 12 and an annular region that surrounds the valve 14 .
- all of the valves 14 are initially closed. However, the valves 14 are successively opened one at a time in a predetermined sequence (described below) for purposes of fracturing the layers 15 .
- the valves are opened in a sequence that begins at the bottom of the string 12 with the lowest valve 14 N , proceeds uphole to the next immediately adjacent valve 14 , then to the next immediately adjacent valve 14 , etc.
- the valve 14 N is opened before the valve 14 N ⁇ 1
- the valve 14 3 is opened before the valve 14 2 , etc.
- a free-falling or pumped-down object is deployed from the surface of the well into the central passageway of the string 12 . It is assumed below for purposes of clarifying the following discussion that the object is a spherical ball. However, it is understood that in other embodiments of the invention, other object types and/or differently-shaped objects may be used.
- a ball of the same dimension may be used (although different size balls may be used in other embodiments of the invention) to open all of the valves 14 , as only one of the previously-unopened valves (called the “targeted valve” herein) is in a “ball catching state” at any one time. More specifically, in accordance with some embodiments of the invention, all of the balls that are pumped or dropped downhole for purposes of opening one of the valves 14 may have diameters that vary less than approximately 0.125 inches from each other.
- valves 14 As described below, initially, all of the valves 14 are closed, and none of the valves 14 are in ball catching states.
- the valve 14 places the next valve 14 in the sequence in the ball catching state.
- the valve 14 forms a seat that presents a restricted cross-sectional flow passageway to catch a ball that is dropped into the central passageway of the string 12 .
- the unopened valves 14 that are located above the unopened valve 14 that is in the ball catching state allow the ball to pass through.
- the ball significantly restricts, if not seals off, the central passageway of the string 12 below the ball so that fluid pressure may be applied above the ball to generate a force to cause the valve to open, as further described below.
- a ball may be dropped from the well's surface into the central passageway of the string 12 for purposes of opening a previously-unopened valve 14 N that has previously been placed in a ball catching state.
- the valve 14 N opens to allow a fracturing operation to be performed on the associated layer 15 N .
- the opening of the valve 14 N places the next valve 14 N ⁇ 1 in the sequence in the ball catching state.
- another ball is dropped into the central passageway of the string 12 for purposes of opening the valve 14 N ⁇ 1 so that the layer 15 N ⁇ 1 can be fractured.
- this sequence continues until the last valve 14 1 is opened, and the associated layer 15 1 is fractured.
- FIGS. 2 and 3 depict upper 14 A and lower 14 B sections of an exemplary valve 14 that is closed and has not been placed in ball catching state (i.e., the valve 14 is in its initial states when run into the well).
- the valve 14 does not restrict its central passageway 24 .
- the valve 14 may be subsequently placed in the ball catching state, a state in which the valve 14 compresses a collet sleeve 30 to form an annular seat to catch the ball.
- the valve 14 includes a generally cylindrical upper housing section 20 ( FIG. 2 ) that is coaxial with a longitudinal axis 26 of the valve 14 .
- the upper housing section 20 includes an opening 19 to communicate fluids (well fluid, fracturing fluid, etc.) with the portion of the string 12 that is located above and is attached to the upper housing section 20 .
- the upper housing section 20 is coaxial with and is connected to a generally cylindrical lower housing section 22 ( FIGS. 2 and 3 ).
- a seal such as an 0 -ring 23 may be present between the upper 20 and lower 22 housing sections.
- the valve 14 includes a valve sleeve 60 ( FIG. 2 ) that is coaxial with the longitudinal axis 26 and is constructed to move longitudinally within an annular pocket 80 (see FIG. 3 ) that is formed in the upper 20 and lower 22 housing sections of the valve 14 .
- the central passageway of the valve sleeve 60 forms part of the central passageway 24 of the valve 14 .
- Upper 62 and lower 64 0 -rings circumscribe the outer surface of the sleeve 60 and form corresponding annular seals between the outer surface of the sleeve 60 and the inner surface of the housing section 20 for purposes of sealing off radial openings (not shown in FIG. 2 ) in the upper housing section 20 during the closed state (depicted in FIGS.
- valve 14 As further described below, when the sleeve 60 moves in a downward direction to open the valve 14 , openings in the upper housing section 20 are exposed to place the valve 14 in an open state, a state in which fluid communication occurs between the central passageway 24 of the valve 14 and the region that surrounds the valve 14 .
- the valve sleeve 60 is connected to the upper end of the collet sleeve 30 , a sleeve whose state of radial expansion/contraction controls when the valve 14 is in the ball catching state.
- the collet sleeve 30 is generally coaxial with the longitudinal axis 26 .
- the collet sleeve 30 includes a lower end 32 in which longitudinal slots 34 are formed, and these slots 34 may be regularly spaced about the longitudinal axis 26 of the collet sleeve 30 .
- the valve 14 For purposes of radially compressing the lower end 32 of the collet sleeve 30 to place the valve 14 in its ball catching state, the valve 14 includes a mandrel 40 .
- the mandrel 40 is designed to slide in a downward longitudinal direction (from the position depicted in FIG. 2 ) for purposes of sliding a sleeve 48 over the lower end 32 to radially compress the lower end 32 .
- the mandrel 40 is depicted in FIG. 2 in a position to allow full radial expansion of the lower end 32 of the collet sleeve 30 , and thus, in this position, the mandrel 40 does not configure the collet sleeve 30 to catch a ball.
- the mandrel 40 For purposes of actuating the mandrel 40 to move the mandrel 40 in a downward direction, the mandrel 40 includes a piston head 43 that has an upper surface 44 .
- the upper surface 44 is in communication with a fluid passageway 42 that may be formed in, for example, the upper housing section 20 .
- the upper surface 44 of the piston head 43 is exposed to an upper chamber 90 (having its minimum volume in FIG. 2 ) of the valve 14 for the purpose of creating a downward force on the mandrel 40 to compress the lower end 32 of the collet sleeve 30 .
- an 0 -ring 47 forms a seal between the inner surface of the piston head 43 and the outer surface of the collet sleeve 30 ; and a lower 0 -ring 72 is located on the outside of the mandrel 40 for purposes of forming a seal between the exterior surface of the mandrel 40 and the interior surface of the upper housing section 20 . Due to these seals, the upper chamber 90 is sealed off from a lower chamber 75 , a chamber that is below a lower surface 73 of the piston head 43 . As an example, in some embodiments of the invention, the lower chamber 75 has gas such as air at atmospheric pressure or other low pressure or at a vacuum.
- the lower end of the mandrel 40 is connected to the sleeve 48 that has an inner diameter that is sized to approximately match the outer diameter of the section of the collet sleeve 30 located above the flared lower end 32 .
- the sleeve 48 restricts the inner diameter of the lower end 32 of the collet sleeve 30 to place the valve 14 in its ball catching state.
- FIG. 4 depicts the upper section 14 A of the valve 14 when the valve 14 is in the ball catching state, a state in which the mandrel 40 is at its lowest point of travel.
- the valve sleeve 60 remains in its uppermost point of travel to keep the valve 14 closed.
- the outer diameter of the lower end 32 of the collet sleeve 40 is confined by the inner diameter of the sleeve 48 , and an interior annular seat 94 is formed inside the collet sleeve 30 .
- the seat 94 presents a restricted inner diameter for catching a ball.
- the capture of the ball on the seat 94 substantially restricts, if not seals off, the central passageway of the valve 14 above the ball from the central passageway of the valve 14 below the ball. Due to this restriction of flow, pressure may be applied from the surface of the well for purposes of exerting a downward force on the collet sleeve 30 . Because the upper end of the collet sleeve 30 is connected to the lower end of the valve sleeve 60 , when pressure is applied to the lodged ball and collet sleeve 30 , a corresponding downward force is generated on the valve sleeve 60 . The sleeve 60 may be initially retained in the upward position that is depicted in FIGS.
- valve sleeve 60 by such mechanism(s) (not depicted in the figures) as one or more detent(s), one or more shear pins, trapped low pressure, or vacuum chamber(s).
- this retention mechanism gives way to permit downward movement of the valve sleeve 60 .
- FIGS. 5 and 6 depict the valve 14 in its open state.
- fluid such as fracturing fluid (for example) may be communicated from the central passageway 24 of the string (see FIG. 1 ) to the annular region that surrounds the valve 14 .
- fracturing fluid for example
- FIG. 6 due to the pressure that is exerted on the valve sleeve 60 , the assembly that is formed from the valve sleeve 60 , collet sleeve 30 , mandrel 40 and sleeve 48 travels downwardly until the bottom surface of the collet sleeve 30 and the bottom surface of the sleeve 48 reside on an annular shoulder that is formed at the bottom of the annular pocket 80 .
- FIG. 6 also depicts a sphere, or ball 150 , that rests on the seat 94 and has caused the valve 14 to transition to its open state.
- the passageway 70 in the open state of the valve 14 , is in fluid communication with the central passageway 24 . This is in contrast to the closed state of the valve in which the 0 -ring 68 forms a seal between the central passageway 24 and the passageway 70 , as depicted in FIGS. 2 and 4 . Therefore, in the valve's open state, fluid pressure may be communicated to the passageway 70 (see FIG. 5 ) for purposes of transitioning another valve 14 of the string 12 (see FIG. 1 ) to its ball catching state.
- the passageway 70 may be in fluid communication with the passageway 42 of another valve 14 (the immediately adjacent valve 14 above, for example). Therefore, in response to the valve sleeve 60 moving to its lower position, a downward force is applied (through the communication of pressure through the passageways 70 and 42 ) to the mandrel 40 of another valve 14 of the string 12 .
- the passageway 70 of each valve 14 may be in fluid communication with the passageway 42 of the immediate upper adjacent valve in the string 12 .
- the passageway 70 of the valve 14 3 is connected to the passageway 42 of the valve 14 2
- the passageway 70 of the valve 14 2 is connected to the passageway 42 of the valve 14 1 .
- the valve 14 1 in the exemplary embodiment that is depicted in FIG. 1 is the uppermost valve 14 in the string 12 .
- the passageway 70 of the valve 14 1 may be sealed off or non-existent.
- the passageway 42 is not connected to the passageway of a lower valve.
- the lowermost valve 14 N is placed in its ball catching state using a mechanism that is different from that described above.
- the valve 14 N may be placed in its ball catching state in response to a fluid stimulus that is communicated downhole through the central passageway of the string 12 .
- the lowermost valve 14 N may include a mechanism such as a rupture disc that responds to a remotely-communicated stimulus to permit a downward force to be applied to the mandrel 40 .
- the above-described actuator may move the mandrel 40 in a downward direction in response to a downhole stimulus that is communicated via a slickline or a wireline that are run downhole through the central passageway of the string 12 .
- the stimulus may be encoded in an acoustic wave that is communicated through the string 12 .
- the mandrel 40 may have a profile on its inner surface for purposes of engaging a shifting tool that is lowered downhole through the central passageway of the string 12 for purposes of moving the mandrel 40 in a downward direction to place the valve 14 N in its ball catching state.
- the valve 14 N may be run downhole with a collet sleeve (replacing the collet sleeve 30 ) that is already configured to present a ball catching seat.
- the valve 14 N is the last the valve in the string 12 , other challenges may arise in operating the valve 14 N .
- the string 12 includes an atmospheric chamber 17 (see FIG. 1 ) that is located below the valve 14 N .
- the chamber 17 may be formed in a side pocket in a wall of the string 12 .
- a perforating gun may be lowered downhole through the central passageway of the string 12 to the position where the atmospheric chamber 17 is located. At least one perforation formed from the firing of the perforating gun may then penetrate the atmospheric chamber 17 to create the lower pressure needed to shift the valve sleeve 60 in a downward direction to open the valve 14 N .
- a pressure signal when the atmospheric chamber 17 is penetrated, a pressure signal is communicated uphole, and this pressure signal may be used to signal the valve 14 N to shift the operator mandrel 40 in a downward direction to place the valve 14 N in the ball catching state.
- the valve 14 N may include a pressure sensor that detects the pressure signal so that an actuator of the valve 14 N may respond to the pressure signal to move the mandrel 40 in the downward direction to compress the lower end 32 of the collet sleeve 30 .
- the collet sleeve 30 of the valve 14 N may be pre-configured so that the seat 94 is already in its restricted position when the string 12 is run into the well.
- a perforating gun may then be lowered through the central passageway of the string 12 for purposes of piercing the atmospheric chamber 17 to allow downward future movement of the sleeve valve 60 , as described above.
- a technique 200 may be used for purposes of fracturing multiple layers of a subterranean well.
- the technique 200 is used in conjunction with a string that includes valves similar to the ones that are described above, such as the string 12 that contains the valves 14 (see FIG. 1 ).
- the technique 200 begins an iteration in which the valves are opened pursuant to a sequence (a bottom-to-top sequence, for example). In each iteration, the technique 200 includes dropping the next ball into the string 12 , as depicted in block 204 . Next, pressure is applied (block 206 ) to the ball to cause the valve to open and place another valve (if another valve is to opened) in the ball catching state. Subsequently, the technique 200 includes performing (block 208 ) fracturing in the layer that is associated with the opened valve. If another layer is to be fractured (diamond 210 ), then the technique 200 includes returning to block 204 to perform another iteration.
- a sequence a bottom-to-top sequence, for example
- the lowest valve 15 N may be open via a rupture disc and an atmospheric chamber. More specifically, the string 12 is pressured up, the rupture disc breaks and then fluid pushes on side of a piston. The other side of this piston is in contact with an atmospheric chamber or a vacuum chamber.
- valves 14 are not closed once opened, in some embodiments of the invention. Furthermore, in some embodiments of the invention, each valve 14 remains in its ball catching state once placed in this state. Because the valves 14 are designed to trap a ball of the same size, the cross-sectional flow area through the central passageway of the string is not significantly impeded for subsequent fracturing or production operations.
- each ball may be formed from a material, such as a dissolvable or frangible material, that allows the ball to disintegrate.
- a material such as a dissolvable or frangible material
- captured ball used to actuate a lower valve 14 may push up on the collet sleeve 30 of a higher valve in the string 12 until the collet sleeve 30 moves into an area (a recessed region formed in the lower housing 22 , for example) which has a pocket in the inner diameter to allow the collet sleeve 30 to reopen.
- an area a recessed region formed in the lower housing 22 , for example
- the inner diameter is no longer small enough to restrict the ball so that the ball can flow uphole.
- a bottom surface 252 of the lower end 32 of the collet sleeve 30 is designed to be irregular to prevent a ball that is located below the collet sleeve 30 (and has not dissolved or eroded enough to pass through) from forming a seal that blocks off fluid communication.
- the surface 252 may have one or more irregularities, such as a depression 252 that permits the surface 32 from becoming an effective valve seat. Other types of irregularities may be introduced to the surface 252 , such as raised portions, generally rough surfaces, etc., depending the particular embodiment of the invention.
- the collet sleeve 30 may be replaced by a C-ring 300 .
- the valve 290 has the same generally design of the valve 14 , except for the C-ring 300 and the following differences.
- the C-ring 300 in some embodiments of the invention, includes a single open slot 309 when the valve is not in the ball catching state.
- a mandrel 302 is located above the C-ring 300 so that the open ends 307 of the C-ring 300 do not compress to close the slot 309 .
- an end 304 of the mandrel 302 may be inclined, or beveled, in some embodiments of the invention so that when the mandrel 302 slides downhole, as depicted in FIG. 10 , the ends 307 meet to close the slot 309 ( FIG. 9 ) and thus restrict the inner diameter through the C-ring 300 .
- the valve In the state that is depicted in FIG. 10 , the valve is in a ball catching state, as the inner diameter has been restricted for purposes of catching a free-falling or pumped down object.
- the C-ring design may be advantageous, in some embodiments of the invention, in that the C-ring 300 includes a single slot 309 , as compared to the multiple slots 34 (see FIG. 2 , for example) that are present in the collet sleeve 30 . Therefore, the C-ring design may be advantageous in that sealing is easier because less leakage occurs when the C-ring ring 300 contracts.
- the string 12 may be deployed in a wellbore (e.g., an open or uncased hole) as a temporary completion.
- sealing mechanisms may be employed between each valve and within the annulus defined by the tubular string and the wellbore to isolate the formation zones being treated with a treatment fluid.
- the string 12 may be cemented in place as a permanent completion. In such embodiments, the cement serves to isolate each formation zone.
- the valve 14 may include lobes 101 that are spaced around the longitudinal axis 26 .
- Each lobe 101 extends radially outwardly from a main cylindrical wall 103 of the upper housing 20 , and each radial port 100 extends through one of the lobes 101 .
- the lobes 101 restrict the space otherwise present between the valve 14 and the wellbore to limit the amount of cement that may potentially block fluid communication between the central passageway 24 and the region outside of the valve 14 , as described in co-pending U.S. patent application Ser. No. 10/905,073 entitled, “SYSTEM FOR COMPLETING MUTLIPLE WELL INTERVALS,” filed on Dec. 14, 2004.
- each radial port 100 is formed from an elongated slot whose length is approximately equal to at least five times its width. It has been discovered that such a slot geometry when used in a fracturing operating allows radial deflection when pressuring up, which increases stress in the rock and thus, reduces the fracturing initiation pressure.
- the valve may contain, as examples, three (spaced apart by 120° around the longitudinal axis 26 , for example) or six (spaced apart by 60° around the longitudinal axis 26 , for example) lobes 101 .
- the valve 14 does not contain the lobes 101 .
- the upper housing section 20 approximates a circular cylinder, with the outer diameter of the cylinder being sized to closely match the inner diameter of the wellbore.
- each radial port 100 may have a length that is at least approximately equal to ten or (in other embodiments) is approximately equal to twenty times its length.
- a valve may include a valve housing 400 (replacing the upper valve housing 20 ) that includes radial slots 420 that extending along a helical, or spiral path 422 , about the longitudinal axis 26 . As shown in FIG. 11 , the valve housing 400 does not contain the radially-extending lobes. Thus, many variations are possible and are within the scope of the appended claims.
- valve sleeve may move in an upward direction to open.
- string may be located in a lateral wellbore.
Abstract
An apparatus that is usable with a well includes a string and a plurality of tools that are mounted in the string. The string includes a passageway. The tools are mounted in the string and are adapted to be placed in a state to catch objects (free-falling objects and/or pumped-down objects, as just a few examples) of substantially the same size, which are communicated downhole through the passageway.
Description
- This application is a divisional of U.S. patent application Ser. No. 11/081,005 entitled, “TECHNIQUE AND APPARATUS FOR COMPLETING MULTIPLE ZONES,” filed on Mar. 15, 2005 which is a continuation-in-part of U.S. patent application Ser. No. 10/905,073 entitled, “SYSTEM FOR COMPLETING MUTLIPLE WELL INTERVALS,” filed on Dec. 14, 2004, which is hereby incorporated by reference in its entirety.
- The present invention generally relates to a technique and apparatus to complete multiple zones.
- For purposes of enhancing production from a subterranean well, the layers of the well may be fractured using a pressurized proppant-containing fracturing fluid or other treating fluids such as acid. The layers typically are fractured one at time by directing fracturing fluid to the layer being fractured and isolating the other layers.
- A conventional fracturing system includes surface pumps that pressurize fracturing fluid, which may be communicated downhole via the central passageway of a tubular string. The string extends downhole through a wellbore that traverses the various layers to be fractured; and the string may include valves (sleeve valves, for example) that are generally aligned with the layers so that the valves may be used to control fluid communication between the central passageway of the string and the layers. Thus, when a fracturing operation is performed on one of the layers, one of the valves is opened so that fracturing fluid may be communicated through the opened valve to the associated layer.
- To remotely operate the valves from the surface of the well, the valves may contain many different size ball seats. More specifically, to target and actuate the valves, differently sized balls may be dropped into the central passageway of the string from the surface of the well. Each ball size may be uniquely associated with a different valve, so that a particular ball size is used to actuate a specific valve. The smallest ball opens the deepest valve. More particularly, a free-falling ball lodges, or is “caught” by, a ball seat of the targeted valve. To discriminate between the different valves, each ball seat of the string has a different diameter.
- After a ball lodges in a ball seat, fluid flow through the central passageway of the string becomes restricted, a condition that allows fluid pressure to be applied from the surface of the well for purposes of exerting a downward force on the ball. The ball seat typically is attached to a sleeve of the valve to transfer the force to the sleeve to cause the valve to open.
- The annular area that is consumed by each ball seat restricts the cross-sectional flow area through the string (even in the absence of a ball), and the addition of each valve (and ball seat) to the string further restricts the cross-sectional flow area through the central passageway of the string, as the flow through each ball seat becomes progressively more narrow as the number of ball seats increase. Thus, a large number of valves may significantly restrict the cross-sectional flow area through the string.
- As an alternative to the ball seat being located in the string as part of the valves, a single activation tool may be selectively positioned in side the central passageway of the string to operate the valves. More specifically, a valve actuation tool may be lowered downhole by a conveyance mechanism (a slickline, for example) to the valve to be opened and to close previously-opened valves.
- A challenge with this alternative is that the fracturing pumps at the surface of the well may need to be idled after each layer is fractured. Furthermore, each valve typically is closed after its associated fracturing operation. The reclosure of the valves demands that the seals and sealing surfaces withstand the fracturing operations without damage.
- Thus, there is a continuing need for a technique and/or arrangement to address one or more of the problems that are set forth above as well as possibly address one or more problems that are not set forth above.
- In an embodiment of the invention, an apparatus that is usable with a well includes a string and a plurality of tools that are mounted in the string. The string includes a passageway. The tools are mounted in the string and are adapted to be placed in a state to catch objects (free-falling objects and/or pumped-down objects, as just a few examples) of substantially the same size, which are communicated downhole through the passageway.
- In another embodiment of the invention, an apparatus that is usable with a well includes a tubular member, a first tool and a second tool. The tubular member includes a passageway. The first tool is attached to the tubular member, and the first tool is adapted to be placed in a state to catch a first object that is communicated through the passageway and perform an operation after catching the first object. The second tool is attached to the tubular member and is adapted to transition to a state to catch a second object communicated through the passageway in response to the operation.
- In yet another embodiment of the invention, a technique that is usable with a well includes providing a string that has a plurality of tools and a passageway that extends through the tools. The technique includes without running an activation tool into the passageway; and selectively activating the tools of the string to cause each activated tool to transition from a first state in which the activated tool is configured to allow a free-falling object to pass through the passageway to a second state in which the activated tool is configured to catch the free-falling object.
- Advantages and other features of the invention will become apparent from the following description, drawing and claims.
-
FIG. 1 depicts a fracturing system according to an embodiment of the invention. -
FIGS. 2 and 3 depict a valve in a closed state and before being placed in a ball catching state according to an embodiment of the invention. -
FIG. 4 depicts the valve in a closed state and after being placed in a ball catching state according to an embodiment of the invention. -
FIGS. 5 and 6 depict the valve in its open state according to an embodiment of the invention. -
FIG. 7 is a flow diagram depicting a technique to fracture layers in a multiple layer well according to an embodiment of the invention. -
FIG. 8 is a perspective view illustrating surface features on a bottom end of a collet sleeve of the valve according to an embodiment of the invention. -
FIGS. 9 and 10 depict different states of a valve that uses a C-ring as a ball catcher in accordance with an embodiment of the invention. -
FIG. 11 is a perspective view of a valve housing according to another embodiment of the invention. - Referring to
FIG. 1 , anembodiment 10 of a fracturing system includes astring 12 that extends into awellbore 11 that traverses N layers 15 (layers FIG. 1 , thestring 12 includes valves 14 (valves particular layer 15. For example, thevalve 14 3 is associated with thelayer 15 3. Thus, to fracture aparticular layer 15, the associated valve 14 (initially run downhole in a closed state) is opened by dropping a ball and pumping up, which shifts the sleeve valve open (as described below) to allow communication between the central passageway of thestring 12 and the associatedlayer 15. This communication, in turn, permits fracturing fluid and pressure to be routed to the associatedlayer 15. - More specifically, in some embodiments of the invention, each
valve 14 controls communication between a central passageway of thestring 12 and an annular region that surrounds thevalve 14. When thestring 12 is run downhole, all of thevalves 14 are initially closed. However, thevalves 14 are successively opened one at a time in a predetermined sequence (described below) for purposes of fracturing thelayers 15. - As a more specific example, in some embodiments of the invention, the valves are opened in a sequence that begins at the bottom of the
string 12 with thelowest valve 14 N, proceeds uphole to the next immediatelyadjacent valve 14, then to the next immediatelyadjacent valve 14, etc. Thus, thevalve 14 N is opened before thevalve 14 N−1, thevalve 14 3, is opened before thevalve 14 2, etc. - For purposes of opening a
particular valve 14, a free-falling or pumped-down object is deployed from the surface of the well into the central passageway of thestring 12. It is assumed below for purposes of clarifying the following discussion that the object is a spherical ball. However, it is understood that in other embodiments of the invention, other object types and/or differently-shaped objects may be used. - In some embodiments of the invention, a ball of the same dimension may be used (although different size balls may be used in other embodiments of the invention) to open all of the
valves 14, as only one of the previously-unopened valves (called the “targeted valve” herein) is in a “ball catching state” at any one time. More specifically, in accordance with some embodiments of the invention, all of the balls that are pumped or dropped downhole for purposes of opening one of thevalves 14 may have diameters that vary less than approximately 0.125 inches from each other. - As described below, initially, all of the
valves 14 are closed, and none of thevalves 14 are in ball catching states. When aparticular valve 14 opens, thevalve 14 places thenext valve 14 in the sequence in the ball catching state. When in the ball catching state, thevalve 14 forms a seat that presents a restricted cross-sectional flow passageway to catch a ball that is dropped into the central passageway of thestring 12. For the sequence that is described above, theunopened valves 14 that are located above theunopened valve 14 that is in the ball catching state allow the ball to pass through. - After the ball lodges in the ball catcher of the targeted
valve 14, the ball significantly restricts, if not seals off, the central passageway of thestring 12 below the ball so that fluid pressure may be applied above the ball to generate a force to cause the valve to open, as further described below. - As a more specific example, a ball may be dropped from the well's surface into the central passageway of the
string 12 for purposes of opening a previously-unopened valve 14 N that has previously been placed in a ball catching state. In response to the fluid pressure that is applied to the resultant restricted central passageway, thevalve 14 N opens to allow a fracturing operation to be performed on the associatedlayer 15 N. The opening of thevalve 14 N, in turn, places thenext valve 14 N−1 in the sequence in the ball catching state. Once the fracturing operation on thelayer 15 N is complete, another ball is dropped into the central passageway of thestring 12 for purposes of opening thevalve 14 N−1 so that thelayer 15 N−1 can be fractured. Thus, this sequence continues until thelast valve 14 1 is opened, and the associatedlayer 15 1 is fractured. - As a more specific example, in accordance with some embodiments of the invention,
FIGS. 2 and 3 depict upper 14A and lower 14B sections of anexemplary valve 14 that is closed and has not been placed in ball catching state (i.e., thevalve 14 is in its initial states when run into the well). Thus, as depicted inFIGS. 2 and 3 , thevalve 14 does not restrict itscentral passageway 24. As further described below, thevalve 14 may be subsequently placed in the ball catching state, a state in which thevalve 14 compresses acollet sleeve 30 to form an annular seat to catch the ball. - Turning now to the specific details of the embodiment that is depicted in
FIGS. 2 and 3 , in some embodiments of the invention, thevalve 14 includes a generally cylindrical upper housing section 20 (FIG. 2 ) that is coaxial with alongitudinal axis 26 of thevalve 14. Theupper housing section 20 includes anopening 19 to communicate fluids (well fluid, fracturing fluid, etc.) with the portion of thestring 12 that is located above and is attached to theupper housing section 20. At its lower end, theupper housing section 20 is coaxial with and is connected to a generally cylindrical lower housing section 22 (FIGS. 2 and 3 ). As depicted inFIG. 2 , in some embodiments of the invention, a seal such as an 0-ring 23 may be present between the upper 20 and lower 22 housing sections. - The
valve 14 includes a valve sleeve 60 (FIG. 2 ) that is coaxial with thelongitudinal axis 26 and is constructed to move longitudinally within an annular pocket 80 (seeFIG. 3 ) that is formed in the upper 20 and lower 22 housing sections of thevalve 14. The central passageway of thevalve sleeve 60 forms part of thecentral passageway 24 of thevalve 14.Upper 62 and lower 64 0-rings circumscribe the outer surface of thesleeve 60 and form corresponding annular seals between the outer surface of thesleeve 60 and the inner surface of thehousing section 20 for purposes of sealing off radial openings (not shown inFIG. 2 ) in theupper housing section 20 during the closed state (depicted inFIGS. 2 and 3 ) of thevalve 14. As further described below, when thesleeve 60 moves in a downward direction to open thevalve 14, openings in theupper housing section 20 are exposed to place thevalve 14 in an open state, a state in which fluid communication occurs between thecentral passageway 24 of thevalve 14 and the region that surrounds thevalve 14. - At its lower end, the
valve sleeve 60 is connected to the upper end of thecollet sleeve 30, a sleeve whose state of radial expansion/contraction controls when thevalve 14 is in the ball catching state. Thecollet sleeve 30 is generally coaxial with thelongitudinal axis 26. In some embodiments of the invention, thecollet sleeve 30 includes alower end 32 in whichlongitudinal slots 34 are formed, and theseslots 34 may be regularly spaced about thelongitudinal axis 26 of thecollet sleeve 30. - In its expanded state (depicted in
FIG. 2 ), thelower end 32 of thecollet sleeve 30 is flared radially outwardly for purposes of creating the maximum diameter through the interior of thecollet sleeve 30. Thus, as depicted inFIG. 2 , in this state of thecollet sleeve 30, anopening 38 in thelower end 32 of thesleeve 30 has its maximum inner diameter, thereby leaving thecentral passageway 24 unobstructed. - For purposes of radially compressing the
lower end 32 of thecollet sleeve 30 to place thevalve 14 in its ball catching state, thevalve 14 includes amandrel 40. Themandrel 40 is designed to slide in a downward longitudinal direction (from the position depicted inFIG. 2 ) for purposes of sliding asleeve 48 over thelower end 32 to radially compress thelower end 32. Themandrel 40 is depicted inFIG. 2 in a position to allow full radial expansion of thelower end 32 of thecollet sleeve 30, and thus, in this position, themandrel 40 does not configure thecollet sleeve 30 to catch a ball. - For purposes of actuating the
mandrel 40 to move themandrel 40 in a downward direction, themandrel 40 includes apiston head 43 that has anupper surface 44. Theupper surface 44, in turn, is in communication with afluid passageway 42 that may be formed in, for example, theupper housing section 20. Theupper surface 44 of thepiston head 43 is exposed to an upper chamber 90 (having its minimum volume inFIG. 2 ) of thevalve 14 for the purpose of creating a downward force on themandrel 40 to compress thelower end 32 of thecollet sleeve 30. - As depicted in
FIG. 2 , an 0-ring 47 forms a seal between the inner surface of thepiston head 43 and the outer surface of thecollet sleeve 30; and a lower 0-ring 72 is located on the outside of themandrel 40 for purposes of forming a seal between the exterior surface of themandrel 40 and the interior surface of theupper housing section 20. Due to these seals, theupper chamber 90 is sealed off from alower chamber 75, a chamber that is below alower surface 73 of thepiston head 43. As an example, in some embodiments of the invention, thelower chamber 75 has gas such as air at atmospheric pressure or other low pressure or at a vacuum. - The lower end of the
mandrel 40 is connected to thesleeve 48 that has an inner diameter that is sized to approximately match the outer diameter of the section of thecollet sleeve 30 located above the flaredlower end 32. Thus, when the pressure that is exerted on theupper surface 47 of thepiston head 43 creates a force that exceeds the combined upward force exerted from thechamber 75 to thelower surface 73 and the reaction force that is exerted due to the compression of thelower end 32, thesleeve 48 restricts the inner diameter of thelower end 32 of thecollet sleeve 30 to place thevalve 14 in its ball catching state. -
FIG. 4 depicts theupper section 14A of thevalve 14 when thevalve 14 is in the ball catching state, a state in which themandrel 40 is at its lowest point of travel. In this state, thevalve sleeve 60 remains in its uppermost point of travel to keep thevalve 14 closed. As shown, in this position, the outer diameter of thelower end 32 of thecollet sleeve 40 is confined by the inner diameter of thesleeve 48, and an interiorannular seat 94 is formed inside thecollet sleeve 30. Theseat 94, in turn, presents a restricted inner diameter for catching a ball. - The capture of the ball on the
seat 94 substantially restricts, if not seals off, the central passageway of thevalve 14 above the ball from the central passageway of thevalve 14 below the ball. Due to this restriction of flow, pressure may be applied from the surface of the well for purposes of exerting a downward force on thecollet sleeve 30. Because the upper end of thecollet sleeve 30 is connected to the lower end of thevalve sleeve 60, when pressure is applied to the lodged ball andcollet sleeve 30, a corresponding downward force is generated on thevalve sleeve 60. Thesleeve 60 may be initially retained in the upward position that is depicted inFIGS. 2 and 4 by such mechanism(s) (not depicted in the figures) as one or more detent(s), one or more shear pins, trapped low pressure, or vacuum chamber(s). However, when a sufficient downward force is applied to thevalve sleeve 60, this retention mechanism gives way to permit downward movement of thevalve sleeve 60. - Thus, to open the
valve 14, a ball is dropped from the surface of the well, and then a sufficient pressure is applied (aided by the restriction presented by the lodged ball) to cause thevalve sleeve 60 to shift from its uppermost position to its lowest position, a position that is depicted inFIGS. 5 and 6 . More particularly,FIGS. 5 and 6 depict thevalve 14 in its open state. As shown inFIG. 5 , in the open state, one or moreradial ports 100 formed in theupper housing section 20 are exposed to thecentral passageway 24 of thevalve 14. Thus, in the open state, fluid, such as fracturing fluid (for example), may be communicated from thecentral passageway 24 of the string (seeFIG. 1 ) to the annular region that surrounds thevalve 14. It is noted that when thevalve 14 is closed, theradial openings 100 are scaled off between the upper 62 and lower 64 0-rings. - Referring to
FIG. 6 , due to the pressure that is exerted on thevalve sleeve 60, the assembly that is formed from thevalve sleeve 60,collet sleeve 30,mandrel 40 andsleeve 48 travels downwardly until the bottom surface of thecollet sleeve 30 and the bottom surface of thesleeve 48 reside on an annular shoulder that is formed at the bottom of theannular pocket 80.FIG. 6 also depicts a sphere, orball 150, that rests on theseat 94 and has caused thevalve 14 to transition to its open state. - Referring back to
FIG. 5 , in the open state of thevalve 14, thepassageway 70 is in fluid communication with thecentral passageway 24. This is in contrast to the closed state of the valve in which the 0-ring 68 forms a seal between thecentral passageway 24 and thepassageway 70, as depicted inFIGS. 2 and 4 . Therefore, in the valve's open state, fluid pressure may be communicated to the passageway 70 (seeFIG. 5 ) for purposes of transitioning anothervalve 14 of the string 12 (seeFIG. 1 ) to its ball catching state. - As a more specific example, in some embodiments of the invention, the
passageway 70 may be in fluid communication with thepassageway 42 of another valve 14 (the immediatelyadjacent valve 14 above, for example). Therefore, in response to thevalve sleeve 60 moving to its lower position, a downward force is applied (through the communication of pressure through thepassageways 70 and 42) to themandrel 40 of anothervalve 14 of thestring 12. As a more specific example, in some embodiments of the invention, thepassageway 70 of eachvalve 14 may be in fluid communication with thepassageway 42 of the immediate upper adjacent valve in thestring 12. Thus, referring toFIG. 1 , for example, thepassageway 70 of thevalve 14 3 is connected to thepassageway 42 of thevalve 14 2, and thepassageway 70 of thevalve 14 2 is connected to thepassageway 42 of thevalve 14 1. It is noted that thevalve 14 1 in the exemplary embodiment that is depicted inFIG. 1 , is theuppermost valve 14 in thestring 12. Thus, in some embodiments of the invention, thepassageway 70 of thevalve 14 1 may be sealed off or non-existent. - For the
lowermost valve 14 N, thepassageway 42 is not connected to the passageway of a lower valve. Thus, in some embodiments of the invention, thelowermost valve 14 N is placed in its ball catching state using a mechanism that is different from that described above. For example, in some embodiments of the invention, thevalve 14 N may be placed in its ball catching state in response to a fluid stimulus that is communicated downhole through the central passageway of thestring 12. Thus, thelowermost valve 14 N may include a mechanism such as a rupture disc that responds to a remotely-communicated stimulus to permit a downward force to be applied to themandrel 40. - As another example, in some embodiments of the invention, the above-described actuator may move the
mandrel 40 in a downward direction in response to a downhole stimulus that is communicated via a slickline or a wireline that are run downhole through the central passageway of thestring 12. As yet another example, the stimulus may be encoded in an acoustic wave that is communicated through thestring 12. - As another example of a technique to place the
valve 14 N in its ball catching state, in some embodiments of the invention, themandrel 40 may have a profile on its inner surface for purposes of engaging a shifting tool that is lowered downhole through the central passageway of thestring 12 for purposes of moving themandrel 40 in a downward direction to place thevalve 14 N in its ball catching state. As yet another example of yet another variation, in some embodiments of the invention, thevalve 14 N may be run downhole with a collet sleeve (replacing the collet sleeve 30) that is already configured to present a ball catching seat. Thus, many variations are possible and are within the scope of the claimed invention. - Because the
valve 14 N is the last the valve in thestring 12, other challenges may arise in operating thevalve 14 N. For example, below thelowest layer 15 N, there is likely to be a closed chamber in the well. If a ball were dropped on the seat 94 (seeFIG. 14 , for example), thevalve sleeve 60 of thevalve 14 N may not shift downwardly because any movement downward may increase the pressure below the ball. Thus, in some embodiments of the invention, thestring 12 includes an atmospheric chamber 17 (seeFIG. 1 ) that is located below thevalve 14 N. As an example, thechamber 17 may be formed in a side pocket in a wall of thestring 12. To initiate thevalve 14 N for operation, a perforating gun may be lowered downhole through the central passageway of thestring 12 to the position where theatmospheric chamber 17 is located. At least one perforation formed from the firing of the perforating gun may then penetrate theatmospheric chamber 17 to create the lower pressure needed to shift thevalve sleeve 60 in a downward direction to open thevalve 14 N. - In some embodiments of the invention, when the
atmospheric chamber 17 is penetrated, a pressure signal is communicated uphole, and this pressure signal may be used to signal thevalve 14 N to shift theoperator mandrel 40 in a downward direction to place thevalve 14 N in the ball catching state. More specifically, in some embodiments of the invention, thevalve 14 N may include a pressure sensor that detects the pressure signal so that an actuator of thevalve 14 N may respond to the pressure signal to move themandrel 40 in the downward direction to compress thelower end 32 of thecollet sleeve 30. - Alternatively, in some embodiments of the invention, the
collet sleeve 30 of thevalve 14 N may be pre-configured so that theseat 94 is already in its restricted position when thestring 12 is run into the well. A perforating gun may then be lowered through the central passageway of thestring 12 for purposes of piercing theatmospheric chamber 17 to allow downward future movement of thesleeve valve 60, as described above. - Referring to
FIG. 7 , in some embodiments of the invention, atechnique 200 may be used for purposes of fracturing multiple layers of a subterranean well. Thetechnique 200 is used in conjunction with a string that includes valves similar to the ones that are described above, such as thestring 12 that contains the valves 14 (seeFIG. 1 ). - Pursuant to the
technique 200, the lowest valve of the string is placed in its ball catching state, as depicted inblock 202. Next, thetechnique 200 begins an iteration in which the valves are opened pursuant to a sequence (a bottom-to-top sequence, for example). In each iteration, thetechnique 200 includes dropping the next ball into thestring 12, as depicted inblock 204. Next, pressure is applied (block 206) to the ball to cause the valve to open and place another valve (if another valve is to opened) in the ball catching state. Subsequently, thetechnique 200 includes performing (block 208) fracturing in the layer that is associated with the opened valve. If another layer is to be fractured (diamond 210), then thetechnique 200 includes returning to block 204 to perform another iteration. - As a more specific example, in some embodiments of the invention, the lowest valve 15 N (see
FIG. 1 ) may be open via a rupture disc and an atmospheric chamber. More specifically, thestring 12 is pressured up, the rupture disc breaks and then fluid pushes on side of a piston. The other side of this piston is in contact with an atmospheric chamber or a vacuum chamber. - Contrary to conventional strings that use ball catching valves, the
valves 14 are not closed once opened, in some embodiments of the invention. Furthermore, in some embodiments of the invention, eachvalve 14 remains in its ball catching state once placed in this state. Because thevalves 14 are designed to trap a ball of the same size, the cross-sectional flow area through the central passageway of the string is not significantly impeded for subsequent fracturing or production operations. - It is noted that for an
arbitrary valve 14 in thestring 12, once thevalve 14 is placed in its ball catching state, the restricted diameter formed from the lower end of thecollet sleeve 30 prevents a ball from below thecollet sleeve 30 below from flowing upstream. Therefore, during flowback, each ball may be prevented from flowing past thelower end 32 of thecollet sleeve 30 of thevalve 14 above. - However, in accordance with some embodiments of the invention, each ball may be formed from a material, such as a dissolvable or frangible material, that allows the ball to disintegrate. Thus, although a particular ball may flow upstream during flowback and contact the bottom end of the
collet sleeve 30 above, the ball is eventually eroded or at least sufficiently dissolved to flow upstream through the valve to open up communication through thestring 12. - In some embodiments of the invention, captured ball used to actuate a
lower valve 14 may push up on thecollet sleeve 30 of a higher valve in thestring 12 until thecollet sleeve 30 moves into an area (a recessed region formed in thelower housing 22, for example) which has a pocket in the inner diameter to allow thecollet sleeve 30 to reopen. Thus, when thecollet sleeve 30 reopens, the inner diameter is no longer small enough to restrict the ball so that the ball can flow uphole. Other variations are possible and are within the scope of the appended claims. - Referring to
FIG. 8 , in accordance with some embodiments of the invention, abottom surface 252 of thelower end 32 of thecollet sleeve 30 is designed to be irregular to prevent a ball that is located below the collet sleeve 30 (and has not dissolved or eroded enough to pass through) from forming a seal that blocks off fluid communication. Thus, as depicted inFIG. 8 , in some embodiments of the invention, thesurface 252 may have one or more irregularities, such as adepression 252 that permits thesurface 32 from becoming an effective valve seat. Other types of irregularities may be introduced to thesurface 252, such as raised portions, generally rough surfaces, etc., depending the particular embodiment of the invention. - Other embodiments are within the scope of the appended claims. For example, referring to
FIG. 9 , in some embodiments of the invention, in a valve 290 (that replaces the valve 14) thecollet sleeve 30 may be replaced by a C-ring 300. Thevalve 290 has the same generally design of thevalve 14, except for the C-ring 300 and the following differences. The C-ring 300, in some embodiments of the invention, includes a singleopen slot 309 when the valve is not in the ball catching state. Thus, as depicted inFIG. 9 , in this state, amandrel 302 is located above the C-ring 300 so that the open ends 307 of the C-ring 300 do not compress to close theslot 309. As depicted inFIG. 9 , anend 304 of themandrel 302 may be inclined, or beveled, in some embodiments of the invention so that when themandrel 302 slides downhole, as depicted inFIG. 10 , theends 307 meet to close the slot 309 (FIG. 9 ) and thus restrict the inner diameter through the C-ring 300. In the state that is depicted inFIG. 10 , the valve is in a ball catching state, as the inner diameter has been restricted for purposes of catching a free-falling or pumped down object. - The C-ring design may be advantageous, in some embodiments of the invention, in that the C-
ring 300 includes asingle slot 309, as compared to the multiple slots 34 (seeFIG. 2 , for example) that are present in thecollet sleeve 30. Therefore, the C-ring design may be advantageous in that sealing is easier because less leakage occurs when the C-ring ring 300 contracts. - Referring to back to
FIG. 1 , in some embodiments of the invention, thestring 12 may be deployed in a wellbore (e.g., an open or uncased hole) as a temporary completion. In such embodiments, sealing mechanisms may be employed between each valve and within the annulus defined by the tubular string and the wellbore to isolate the formation zones being treated with a treatment fluid. However, in other embodiments of the invention, thestring 12 may be cemented in place as a permanent completion. In such embodiments, the cement serves to isolate each formation zone. - The cementing of the
string 12 may potentially block valve openings, if not for certain features of thevalve 14. For example, referring back toFIG. 5 , in some embodiments of the invention, thevalve 14 may includelobes 101 that are spaced around thelongitudinal axis 26. Eachlobe 101 extends radially outwardly from a maincylindrical wall 103 of theupper housing 20, and eachradial port 100 extends through one of thelobes 101. Thelobes 101 restrict the space otherwise present between thevalve 14 and the wellbore to limit the amount of cement that may potentially block fluid communication between thecentral passageway 24 and the region outside of thevalve 14, as described in co-pending U.S. patent application Ser. No. 10/905,073 entitled, “SYSTEM FOR COMPLETING MUTLIPLE WELL INTERVALS,” filed on Dec. 14, 2004. - In accordance with some embodiments of the invention, each
radial port 100 is formed from an elongated slot whose length is approximately equal to at least five times its width. It has been discovered that such a slot geometry when used in a fracturing operating allows radial deflection when pressuring up, which increases stress in the rock and thus, reduces the fracturing initiation pressure. - Depending on the particular embodiment of the invention, the valve may contain, as examples, three (spaced apart by 120° around the
longitudinal axis 26, for example) or six (spaced apart by 60° around thelongitudinal axis 26, for example)lobes 101. In some embodiments of the invention, thevalve 14 does not contain thelobes 101. Instead, theupper housing section 20 approximates a circular cylinder, with the outer diameter of the cylinder being sized to closely match the inner diameter of the wellbore. - Other variations are possible in accordance with the various embodiments of the invention. For example, depending on the particular embodiment of the invention, each
radial port 100 may have a length that is at least approximately equal to ten or (in other embodiments) is approximately equal to twenty times its length. - The
radial slots 100 are depicted inFIG. 5 as being located at generally the same longitudinal position. However, in other embodiments of the invention, a valve (FIG. 11 ) may include a valve housing 400 (replacing the upper valve housing 20) that includesradial slots 420 that extending along a helical, orspiral path 422, about thelongitudinal axis 26. As shown inFIG. 11 , thevalve housing 400 does not contain the radially-extending lobes. Thus, many variations are possible and are within the scope of the appended claims. - Although directional and orientational terms (such as “upward,” “lower,” etc.) are used herein to describe the string, the valve, their components and their operations, it is understood that the specific orientations and directions that are described herein are not needed to practice the invention. For example, in some embodiments of the invention, the valve sleeve may move in an upward direction to open. As another example, in some embodiments of the invention, the string may be located in a lateral wellbore. Thus, many variations are possible and are within the scope of the appended claims.
- While the present invention has been described with respect to a limited number of embodiments, those skilled in the art, having the benefit of this disclosure, will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover all such modifications and variations as fall within the true spirit and scope of this present invention.
Claims (5)
1. A system usable with a well, comprising:
a string to be run into the well and comprising a passageway; and
a valve attached to the string, the valve comprising a housing having openings to establish fluid communication between the passageway and a region outside of the string,
wherein at least one of the openings comprises a slot having a longitudinal length at least five times greater than a width of the slot.
2. The system of claim 1 , wherein the valve comprises a sleeve adapted to move to selectively block the openings to control the fluid communication between the passageway and the region.
3. The system of claim 1 , wherein the longitudinal length is at least ten times greater than the width.
4. The system of claim 1 , wherein the longitudinal length is at least twenty times greater than the width.
5. The system of claim 1 , wherein the openings extend in a spiral pattern about the longitudinal axis of the valve.
Priority Applications (1)
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US11/837,115 US20070272413A1 (en) | 2004-12-14 | 2007-08-10 | Technique and apparatus for completing multiple zones |
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US10/905,073 US7387165B2 (en) | 2004-12-14 | 2004-12-14 | System for completing multiple well intervals |
US11/110,810 US7384152B2 (en) | 2004-04-22 | 2005-03-15 | Liquid-cooled projector |
GB0603394A GB2424233B (en) | 2005-03-15 | 2006-02-21 | Technique and apparatus for use in wells |
US11/837,115 US20070272413A1 (en) | 2004-12-14 | 2007-08-10 | Technique and apparatus for completing multiple zones |
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US11/081,005 Division US7322417B2 (en) | 2004-12-14 | 2005-03-15 | Technique and apparatus for completing multiple zones |
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US11/837,115 Abandoned US20070272413A1 (en) | 2004-12-14 | 2007-08-10 | Technique and apparatus for completing multiple zones |
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Cited By (110)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070240883A1 (en) * | 2004-05-26 | 2007-10-18 | George Telfer | Downhole Tool |
US20080210429A1 (en) * | 2007-03-01 | 2008-09-04 | Bj Services Company | System and method for stimulating multiple production zones in a wellbore |
US20100263873A1 (en) * | 2008-10-14 | 2010-10-21 | Source Energy Tool Services Inc. | Method and apparatus for use in selectively fracing a well |
WO2010124371A1 (en) * | 2009-04-27 | 2010-11-04 | Source Energy Tool Services Inc. | Selective fracturing tool |
US20110030975A1 (en) * | 2009-08-04 | 2011-02-10 | Baker Hughes Incorporated | Tubular system with selectively engagable sleeves and method |
US20110100647A1 (en) * | 2009-10-29 | 2011-05-05 | Baker Hughes Incorporated | Tubular Actuator, System and Method |
US20110198096A1 (en) * | 2010-02-15 | 2011-08-18 | Tejas Research And Engineering, Lp | Unlimited Downhole Fracture Zone System |
US20110232915A1 (en) * | 2010-03-23 | 2011-09-29 | Baker Hughes Incorporated | System, assembly and method for port control |
WO2011130846A1 (en) * | 2010-04-22 | 2011-10-27 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore control |
EP2372080A3 (en) * | 2010-04-02 | 2011-11-02 | Weatherford/Lamb, Inc. | Indexing sleeve for single-trip, multi-stage fracturing |
US8261761B2 (en) | 2009-05-07 | 2012-09-11 | Baker Hughes Incorporated | Selectively movable seat arrangement and method |
US8272445B2 (en) | 2009-07-15 | 2012-09-25 | Baker Hughes Incorporated | Tubular valve system and method |
US8276674B2 (en) | 2004-12-14 | 2012-10-02 | Schlumberger Technology Corporation | Deploying an untethered object in a passageway of a well |
US8291980B2 (en) | 2009-08-13 | 2012-10-23 | Baker Hughes Incorporated | Tubular valving system and method |
US8291988B2 (en) | 2009-08-10 | 2012-10-23 | Baker Hughes Incorporated | Tubular actuator, system and method |
US20120266994A1 (en) * | 2011-04-19 | 2012-10-25 | Baker Hughes Incorporated | Tubular actuating system and method |
US8316951B2 (en) | 2009-09-25 | 2012-11-27 | Baker Hughes Incorporated | Tubular actuator and method |
US8327931B2 (en) | 2009-12-08 | 2012-12-11 | Baker Hughes Incorporated | Multi-component disappearing tripping ball and method for making the same |
US20120312547A1 (en) * | 2011-06-08 | 2012-12-13 | Halliburton Energy Services, Inc. | Responsively activated wellbore stimulation assemblies and methods of using the same |
US8397823B2 (en) | 2009-08-10 | 2013-03-19 | Baker Hughes Incorporated | Tubular actuator, system and method |
US20130068484A1 (en) * | 2002-08-21 | 2013-03-21 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore fluid treatment |
US8403068B2 (en) | 2010-04-02 | 2013-03-26 | Weatherford/Lamb, Inc. | Indexing sleeve for single-trip, multi-stage fracing |
US8418769B2 (en) | 2009-09-25 | 2013-04-16 | Baker Hughes Incorporated | Tubular actuator and method |
US8425651B2 (en) | 2010-07-30 | 2013-04-23 | Baker Hughes Incorporated | Nanomatrix metal composite |
US8424610B2 (en) | 2010-03-05 | 2013-04-23 | Baker Hughes Incorporated | Flow control arrangement and method |
CN103061733A (en) * | 2013-01-14 | 2013-04-24 | 西南石油大学 | Sleeve valve type fracturing production-increasing tool |
US20130153220A1 (en) * | 2011-12-14 | 2013-06-20 | Utex Industries, Inc. | Expandable seat assembly for isolating fracture zones in a well |
US8479823B2 (en) | 2009-09-22 | 2013-07-09 | Baker Hughes Incorporated | Plug counter and method |
US8505632B2 (en) | 2004-12-14 | 2013-08-13 | Schlumberger Technology Corporation | Method and apparatus for deploying and using self-locating downhole devices |
US8573295B2 (en) | 2010-11-16 | 2013-11-05 | Baker Hughes Incorporated | Plug and method of unplugging a seat |
US8631876B2 (en) | 2011-04-28 | 2014-01-21 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
US8662162B2 (en) | 2011-02-03 | 2014-03-04 | Baker Hughes Incorporated | Segmented collapsible ball seat allowing ball recovery |
US8668013B2 (en) | 2010-08-24 | 2014-03-11 | Baker Hughes Incorporated | Plug counter, fracing system and method |
US8746343B2 (en) | 2001-11-19 | 2014-06-10 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore fluid treatment |
US8776884B2 (en) | 2010-08-09 | 2014-07-15 | Baker Hughes Incorporated | Formation treatment system and method |
US8783365B2 (en) | 2011-07-28 | 2014-07-22 | Baker Hughes Incorporated | Selective hydraulic fracturing tool and method thereof |
US8844637B2 (en) | 2012-01-11 | 2014-09-30 | Schlumberger Technology Corporation | Treatment system for multiple zones |
US8899334B2 (en) | 2011-08-23 | 2014-12-02 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US8944171B2 (en) | 2011-06-29 | 2015-02-03 | Schlumberger Technology Corporation | Method and apparatus for completing a multi-stage well |
US8991505B2 (en) | 2010-10-06 | 2015-03-31 | Colorado School Of Mines | Downhole tools and methods for selectively accessing a tubular annulus of a wellbore |
US8991509B2 (en) | 2012-04-30 | 2015-03-31 | Halliburton Energy Services, Inc. | Delayed activation activatable stimulation assembly |
US9010447B2 (en) | 2009-05-07 | 2015-04-21 | Packers Plus Energy Services Inc. | Sliding sleeve sub and method and apparatus for wellbore fluid treatment |
US20150114664A1 (en) * | 2013-10-25 | 2015-04-30 | Baker Hughes Incorporated | Multi-stage Fracturing with Smart Frack Sleeves While Leaving a Full Flow Bore |
US9022107B2 (en) | 2009-12-08 | 2015-05-05 | Baker Hughes Incorporated | Dissolvable tool |
US9033041B2 (en) | 2011-09-13 | 2015-05-19 | Schlumberger Technology Corporation | Completing a multi-stage well |
US9033055B2 (en) | 2011-08-17 | 2015-05-19 | Baker Hughes Incorporated | Selectively degradable passage restriction and method |
US20150136396A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Telemetry operated ball release system |
US9057242B2 (en) | 2011-08-05 | 2015-06-16 | Baker Hughes Incorporated | Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate |
US9068428B2 (en) | 2012-02-13 | 2015-06-30 | Baker Hughes Incorporated | Selectively corrodible downhole article and method of use |
US9080098B2 (en) | 2011-04-28 | 2015-07-14 | Baker Hughes Incorporated | Functionally gradient composite article |
US9079246B2 (en) | 2009-12-08 | 2015-07-14 | Baker Hughes Incorporated | Method of making a nanomatrix powder metal compact |
US9090956B2 (en) | 2011-08-30 | 2015-07-28 | Baker Hughes Incorporated | Aluminum alloy powder metal compact |
US9090955B2 (en) | 2010-10-27 | 2015-07-28 | Baker Hughes Incorporated | Nanomatrix powder metal composite |
WO2015109407A1 (en) | 2014-01-24 | 2015-07-30 | Completions Research Ag | Multistage high pressure fracturing system with counting system |
US9101978B2 (en) | 2002-12-08 | 2015-08-11 | Baker Hughes Incorporated | Nanomatrix powder metal compact |
US9109429B2 (en) | 2002-12-08 | 2015-08-18 | Baker Hughes Incorporated | Engineered powder compact composite material |
US9109269B2 (en) | 2011-08-30 | 2015-08-18 | Baker Hughes Incorporated | Magnesium alloy powder metal compact |
US9133695B2 (en) | 2011-09-03 | 2015-09-15 | Baker Hughes Incorporated | Degradable shaped charge and perforating gun system |
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US9187990B2 (en) | 2011-09-03 | 2015-11-17 | Baker Hughes Incorporated | Method of using a degradable shaped charge and perforating gun system |
US9227243B2 (en) | 2009-12-08 | 2016-01-05 | Baker Hughes Incorporated | Method of making a powder metal compact |
US9238953B2 (en) | 2011-11-08 | 2016-01-19 | Schlumberger Technology Corporation | Completion method for stimulation of multiple intervals |
US9243475B2 (en) | 2009-12-08 | 2016-01-26 | Baker Hughes Incorporated | Extruded powder metal compact |
US9267347B2 (en) | 2009-12-08 | 2016-02-23 | Baker Huges Incorporated | Dissolvable tool |
US9279306B2 (en) | 2012-01-11 | 2016-03-08 | Schlumberger Technology Corporation | Performing multi-stage well operations |
US9284812B2 (en) | 2011-11-21 | 2016-03-15 | Baker Hughes Incorporated | System for increasing swelling efficiency |
US9316089B2 (en) | 2009-06-10 | 2016-04-19 | Baker Hughes Incorporated | Seat apparatus and method |
US9347119B2 (en) | 2011-09-03 | 2016-05-24 | Baker Hughes Incorporated | Degradable high shock impedance material |
US9382790B2 (en) | 2010-12-29 | 2016-07-05 | Schlumberger Technology Corporation | Method and apparatus for completing a multi-stage well |
US9394752B2 (en) | 2011-11-08 | 2016-07-19 | Schlumberger Technology Corporation | Completion method for stimulation of multiple intervals |
US9428998B2 (en) | 2013-11-18 | 2016-08-30 | Weatherford Technology Holdings, Llc | Telemetry operated setting tool |
US9428976B2 (en) | 2011-02-10 | 2016-08-30 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US9458697B2 (en) | 2011-02-10 | 2016-10-04 | Halliburton Energy Services, Inc. | Method for individually servicing a plurality of zones of a subterranean formation |
US9523258B2 (en) | 2013-11-18 | 2016-12-20 | Weatherford Technology Holdings, Llc | Telemetry operated cementing plug release system |
US9528336B2 (en) | 2013-02-01 | 2016-12-27 | Schlumberger Technology Corporation | Deploying an expandable downhole seat assembly |
US9534471B2 (en) | 2011-09-30 | 2017-01-03 | Schlumberger Technology Corporation | Multizone treatment system |
US9562419B2 (en) | 2010-10-06 | 2017-02-07 | Colorado School Of Mines | Downhole tools and methods for selectively accessing a tubular annulus of a wellbore |
US9574414B2 (en) | 2011-07-29 | 2017-02-21 | Packers Plus Energy Services Inc. | Wellbore tool with indexing mechanism and method |
US9587477B2 (en) | 2013-09-03 | 2017-03-07 | Schlumberger Technology Corporation | Well treatment with untethered and/or autonomous device |
US9605508B2 (en) | 2012-05-08 | 2017-03-28 | Baker Hughes Incorporated | Disintegrable and conformable metallic seal, and method of making the same |
US9631468B2 (en) | 2013-09-03 | 2017-04-25 | Schlumberger Technology Corporation | Well treatment |
US9643144B2 (en) | 2011-09-02 | 2017-05-09 | Baker Hughes Incorporated | Method to generate and disperse nanostructures in a composite material |
US9644452B2 (en) | 2013-10-10 | 2017-05-09 | Schlumberger Technology Corporation | Segmented seat assembly |
US9643250B2 (en) | 2011-07-29 | 2017-05-09 | Baker Hughes Incorporated | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9650851B2 (en) | 2012-06-18 | 2017-05-16 | Schlumberger Technology Corporation | Autonomous untethered well object |
US9682425B2 (en) | 2009-12-08 | 2017-06-20 | Baker Hughes Incorporated | Coated metallic powder and method of making the same |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US20170204698A1 (en) * | 2014-08-22 | 2017-07-20 | Halliburton Energy Services, Inc. | Downhole sub with collapsible baffle |
US9752407B2 (en) | 2011-09-13 | 2017-09-05 | Schlumberger Technology Corporation | Expandable downhole seat assembly |
US9777569B2 (en) | 2013-11-18 | 2017-10-03 | Weatherford Technology Holdings, Llc | Running tool |
US9784070B2 (en) | 2012-06-29 | 2017-10-10 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US9833838B2 (en) | 2011-07-29 | 2017-12-05 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9856547B2 (en) | 2011-08-30 | 2018-01-02 | Bakers Hughes, A Ge Company, Llc | Nanostructured powder metal compact |
US9910026B2 (en) | 2015-01-21 | 2018-03-06 | Baker Hughes, A Ge Company, Llc | High temperature tracers for downhole detection of produced water |
US9926766B2 (en) | 2012-01-25 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Seat for a tubular treating system |
US10012064B2 (en) | 2015-04-09 | 2018-07-03 | Highlands Natural Resources, Plc | Gas diverter for well and reservoir stimulation |
US10016810B2 (en) | 2015-12-14 | 2018-07-10 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof |
US10030474B2 (en) | 2008-04-29 | 2018-07-24 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
US10119364B2 (en) * | 2016-03-24 | 2018-11-06 | Baker Hughes, A Ge Company, Llc | Sleeve apparatus, downhole system, and method |
US10221637B2 (en) | 2015-08-11 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing dissolvable tools via liquid-solid state molding |
US10240419B2 (en) | 2009-12-08 | 2019-03-26 | Baker Hughes, A Ge Company, Llc | Downhole flow inhibition tool and method of unplugging a seat |
GB2569587A (en) * | 2017-12-20 | 2019-06-26 | Schoeller Bleckmann Oilfield Equipment Ag | Catcher device for downhole tool |
US10344204B2 (en) | 2015-04-09 | 2019-07-09 | Diversion Technologies, LLC | Gas diverter for well and reservoir stimulation |
US10364629B2 (en) | 2011-09-13 | 2019-07-30 | Schlumberger Technology Corporation | Downhole component having dissolvable components |
US10378303B2 (en) | 2015-03-05 | 2019-08-13 | Baker Hughes, A Ge Company, Llc | Downhole tool and method of forming the same |
US10487625B2 (en) | 2013-09-18 | 2019-11-26 | Schlumberger Technology Corporation | Segmented ring assembly |
US10538988B2 (en) | 2016-05-31 | 2020-01-21 | Schlumberger Technology Corporation | Expandable downhole seat assembly |
US10982520B2 (en) | 2016-04-27 | 2021-04-20 | Highland Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
US11959666B2 (en) | 2022-08-26 | 2024-04-16 | Colorado School Of Mines | System and method for harvesting geothermal energy from a subterranean formation |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7322417B2 (en) | 2004-12-14 | 2008-01-29 | Schlumberger Technology Corporation | Technique and apparatus for completing multiple zones |
GB2448632B (en) * | 2006-01-13 | 2009-01-07 | Schlumberger Holdings | Apparatus for use in testing,treating,or producing a multi-zone well |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995692A (en) * | 1974-07-26 | 1976-12-07 | The Dow Chemical Company | Continuous orifice fill device |
US4771831A (en) * | 1987-10-06 | 1988-09-20 | Camco, Incorporated | Liquid level actuated sleeve valve |
US6371208B1 (en) * | 1999-06-24 | 2002-04-16 | Baker Hughes Incorporated | Variable downhole choke |
US20030180094A1 (en) * | 2002-03-19 | 2003-09-25 | Madison Kent R. | Aquifer recharge valve and method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1234567A (en) * | 1967-06-22 | 1971-06-03 | ||
GB1234568A (en) * | 1967-07-03 | 1971-06-03 | ||
US4355686A (en) * | 1980-12-04 | 1982-10-26 | Otis Engineering Corporation | Well system and method |
US4729432A (en) * | 1987-04-29 | 1988-03-08 | Halliburton Company | Activation mechanism for differential fill floating equipment |
US5224044A (en) * | 1988-02-05 | 1993-06-29 | Nissan Motor Company, Limited | System for controlling driving condition of automotive device associated with vehicle slip control system |
US5244044A (en) * | 1992-06-08 | 1993-09-14 | Otis Engineering Corporation | Catcher sub |
US5787985A (en) * | 1996-01-16 | 1998-08-04 | Halliburton Energy Services, Inc. | Proppant containment apparatus and methods of using same |
GB2320731B (en) * | 1996-04-01 | 2000-10-25 | Baker Hughes Inc | Downhole flow control devices |
US7370705B2 (en) * | 2002-05-06 | 2008-05-13 | Baker Hughes Incorporated | Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones |
US7416029B2 (en) * | 2003-04-01 | 2008-08-26 | Specialised Petroleum Services Group Limited | Downhole tool |
-
2006
- 2006-02-21 GB GB0709067A patent/GB2435657B/en active Active
- 2006-02-21 GB GB0709070A patent/GB2435659B/en active Active
- 2006-02-21 GB GB0603394A patent/GB2424233B/en active Active
- 2006-02-21 GB GB0709059A patent/GB2435656B/en active Active
-
2007
- 2007-05-11 GB GB0709068A patent/GB2435658A/en not_active Withdrawn
- 2007-08-10 US US11/837,115 patent/US20070272413A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995692A (en) * | 1974-07-26 | 1976-12-07 | The Dow Chemical Company | Continuous orifice fill device |
US4771831A (en) * | 1987-10-06 | 1988-09-20 | Camco, Incorporated | Liquid level actuated sleeve valve |
US6371208B1 (en) * | 1999-06-24 | 2002-04-16 | Baker Hughes Incorporated | Variable downhole choke |
US20030180094A1 (en) * | 2002-03-19 | 2003-09-25 | Madison Kent R. | Aquifer recharge valve and method |
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US20080210429A1 (en) * | 2007-03-01 | 2008-09-04 | Bj Services Company | System and method for stimulating multiple production zones in a wellbore |
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US8261761B2 (en) | 2009-05-07 | 2012-09-11 | Baker Hughes Incorporated | Selectively movable seat arrangement and method |
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US8403068B2 (en) | 2010-04-02 | 2013-03-26 | Weatherford/Lamb, Inc. | Indexing sleeve for single-trip, multi-stage fracing |
WO2011130846A1 (en) * | 2010-04-22 | 2011-10-27 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore control |
US9297234B2 (en) | 2010-04-22 | 2016-03-29 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore control |
US8425651B2 (en) | 2010-07-30 | 2013-04-23 | Baker Hughes Incorporated | Nanomatrix metal composite |
US8776884B2 (en) | 2010-08-09 | 2014-07-15 | Baker Hughes Incorporated | Formation treatment system and method |
US9188235B2 (en) | 2010-08-24 | 2015-11-17 | Baker Hughes Incorporated | Plug counter, fracing system and method |
US8789600B2 (en) | 2010-08-24 | 2014-07-29 | Baker Hughes Incorporated | Fracing system and method |
US8668013B2 (en) | 2010-08-24 | 2014-03-11 | Baker Hughes Incorporated | Plug counter, fracing system and method |
US9562419B2 (en) | 2010-10-06 | 2017-02-07 | Colorado School Of Mines | Downhole tools and methods for selectively accessing a tubular annulus of a wellbore |
US8991505B2 (en) | 2010-10-06 | 2015-03-31 | Colorado School Of Mines | Downhole tools and methods for selectively accessing a tubular annulus of a wellbore |
US9090955B2 (en) | 2010-10-27 | 2015-07-28 | Baker Hughes Incorporated | Nanomatrix powder metal composite |
US8573295B2 (en) | 2010-11-16 | 2013-11-05 | Baker Hughes Incorporated | Plug and method of unplugging a seat |
US9382790B2 (en) | 2010-12-29 | 2016-07-05 | Schlumberger Technology Corporation | Method and apparatus for completing a multi-stage well |
US10400557B2 (en) * | 2010-12-29 | 2019-09-03 | Schlumberger Technology Corporation | Method and apparatus for completing a multi-stage well |
US8662162B2 (en) | 2011-02-03 | 2014-03-04 | Baker Hughes Incorporated | Segmented collapsible ball seat allowing ball recovery |
US9458697B2 (en) | 2011-02-10 | 2016-10-04 | Halliburton Energy Services, Inc. | Method for individually servicing a plurality of zones of a subterranean formation |
US9428976B2 (en) | 2011-02-10 | 2016-08-30 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US20120266994A1 (en) * | 2011-04-19 | 2012-10-25 | Baker Hughes Incorporated | Tubular actuating system and method |
US8770299B2 (en) * | 2011-04-19 | 2014-07-08 | Baker Hughes Incorporated | Tubular actuating system and method |
US10335858B2 (en) | 2011-04-28 | 2019-07-02 | Baker Hughes, A Ge Company, Llc | Method of making and using a functionally gradient composite tool |
US9631138B2 (en) | 2011-04-28 | 2017-04-25 | Baker Hughes Incorporated | Functionally gradient composite article |
US9080098B2 (en) | 2011-04-28 | 2015-07-14 | Baker Hughes Incorporated | Functionally gradient composite article |
US8631876B2 (en) | 2011-04-28 | 2014-01-21 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
US8893811B2 (en) * | 2011-06-08 | 2014-11-25 | Halliburton Energy Services, Inc. | Responsively activated wellbore stimulation assemblies and methods of using the same |
US20120312547A1 (en) * | 2011-06-08 | 2012-12-13 | Halliburton Energy Services, Inc. | Responsively activated wellbore stimulation assemblies and methods of using the same |
US9926763B2 (en) | 2011-06-17 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Corrodible downhole article and method of removing the article from downhole environment |
US9139928B2 (en) | 2011-06-17 | 2015-09-22 | Baker Hughes Incorporated | Corrodible downhole article and method of removing the article from downhole environment |
US8944171B2 (en) | 2011-06-29 | 2015-02-03 | Schlumberger Technology Corporation | Method and apparatus for completing a multi-stage well |
US10697266B2 (en) | 2011-07-22 | 2020-06-30 | Baker Hughes, A Ge Company, Llc | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US8783365B2 (en) | 2011-07-28 | 2014-07-22 | Baker Hughes Incorporated | Selective hydraulic fracturing tool and method thereof |
US9833838B2 (en) | 2011-07-29 | 2017-12-05 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9643250B2 (en) | 2011-07-29 | 2017-05-09 | Baker Hughes Incorporated | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9574414B2 (en) | 2011-07-29 | 2017-02-21 | Packers Plus Energy Services Inc. | Wellbore tool with indexing mechanism and method |
US10092953B2 (en) | 2011-07-29 | 2018-10-09 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9057242B2 (en) | 2011-08-05 | 2015-06-16 | Baker Hughes Incorporated | Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate |
US10301909B2 (en) | 2011-08-17 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Selectively degradable passage restriction |
US9033055B2 (en) | 2011-08-17 | 2015-05-19 | Baker Hughes Incorporated | Selectively degradable passage restriction and method |
US8899334B2 (en) | 2011-08-23 | 2014-12-02 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
US9109269B2 (en) | 2011-08-30 | 2015-08-18 | Baker Hughes Incorporated | Magnesium alloy powder metal compact |
US11090719B2 (en) | 2011-08-30 | 2021-08-17 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US9090956B2 (en) | 2011-08-30 | 2015-07-28 | Baker Hughes Incorporated | Aluminum alloy powder metal compact |
US9856547B2 (en) | 2011-08-30 | 2018-01-02 | Bakers Hughes, A Ge Company, Llc | Nanostructured powder metal compact |
US9925589B2 (en) | 2011-08-30 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US9802250B2 (en) | 2011-08-30 | 2017-10-31 | Baker Hughes | Magnesium alloy powder metal compact |
US10737321B2 (en) | 2011-08-30 | 2020-08-11 | Baker Hughes, A Ge Company, Llc | Magnesium alloy powder metal compact |
US9643144B2 (en) | 2011-09-02 | 2017-05-09 | Baker Hughes Incorporated | Method to generate and disperse nanostructures in a composite material |
US9187990B2 (en) | 2011-09-03 | 2015-11-17 | Baker Hughes Incorporated | Method of using a degradable shaped charge and perforating gun system |
US9347119B2 (en) | 2011-09-03 | 2016-05-24 | Baker Hughes Incorporated | Degradable high shock impedance material |
US9133695B2 (en) | 2011-09-03 | 2015-09-15 | Baker Hughes Incorporated | Degradable shaped charge and perforating gun system |
US9752407B2 (en) | 2011-09-13 | 2017-09-05 | Schlumberger Technology Corporation | Expandable downhole seat assembly |
US9033041B2 (en) | 2011-09-13 | 2015-05-19 | Schlumberger Technology Corporation | Completing a multi-stage well |
US10364629B2 (en) | 2011-09-13 | 2019-07-30 | Schlumberger Technology Corporation | Downhole component having dissolvable components |
US9534471B2 (en) | 2011-09-30 | 2017-01-03 | Schlumberger Technology Corporation | Multizone treatment system |
US9394752B2 (en) | 2011-11-08 | 2016-07-19 | Schlumberger Technology Corporation | Completion method for stimulation of multiple intervals |
US9238953B2 (en) | 2011-11-08 | 2016-01-19 | Schlumberger Technology Corporation | Completion method for stimulation of multiple intervals |
US9284812B2 (en) | 2011-11-21 | 2016-03-15 | Baker Hughes Incorporated | System for increasing swelling efficiency |
US9316084B2 (en) * | 2011-12-14 | 2016-04-19 | Utex Industries, Inc. | Expandable seat assembly for isolating fracture zones in a well |
US20130153220A1 (en) * | 2011-12-14 | 2013-06-20 | Utex Industries, Inc. | Expandable seat assembly for isolating fracture zones in a well |
US9279306B2 (en) | 2012-01-11 | 2016-03-08 | Schlumberger Technology Corporation | Performing multi-stage well operations |
US8844637B2 (en) | 2012-01-11 | 2014-09-30 | Schlumberger Technology Corporation | Treatment system for multiple zones |
US9926766B2 (en) | 2012-01-25 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Seat for a tubular treating system |
US9068428B2 (en) | 2012-02-13 | 2015-06-30 | Baker Hughes Incorporated | Selectively corrodible downhole article and method of use |
US8991509B2 (en) | 2012-04-30 | 2015-03-31 | Halliburton Energy Services, Inc. | Delayed activation activatable stimulation assembly |
US9605508B2 (en) | 2012-05-08 | 2017-03-28 | Baker Hughes Incorporated | Disintegrable and conformable metallic seal, and method of making the same |
US10612659B2 (en) | 2012-05-08 | 2020-04-07 | Baker Hughes Oilfield Operations, Llc | Disintegrable and conformable metallic seal, and method of making the same |
US9650851B2 (en) | 2012-06-18 | 2017-05-16 | Schlumberger Technology Corporation | Autonomous untethered well object |
US9784070B2 (en) | 2012-06-29 | 2017-10-10 | Halliburton Energy Services, Inc. | System and method for servicing a wellbore |
CN103061733A (en) * | 2013-01-14 | 2013-04-24 | 西南石油大学 | Sleeve valve type fracturing production-increasing tool |
US9528336B2 (en) | 2013-02-01 | 2016-12-27 | Schlumberger Technology Corporation | Deploying an expandable downhole seat assembly |
US9988867B2 (en) | 2013-02-01 | 2018-06-05 | Schlumberger Technology Corporation | Deploying an expandable downhole seat assembly |
US9587477B2 (en) | 2013-09-03 | 2017-03-07 | Schlumberger Technology Corporation | Well treatment with untethered and/or autonomous device |
US9631468B2 (en) | 2013-09-03 | 2017-04-25 | Schlumberger Technology Corporation | Well treatment |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US10487625B2 (en) | 2013-09-18 | 2019-11-26 | Schlumberger Technology Corporation | Segmented ring assembly |
US9644452B2 (en) | 2013-10-10 | 2017-05-09 | Schlumberger Technology Corporation | Segmented seat assembly |
US9546538B2 (en) * | 2013-10-25 | 2017-01-17 | Baker Hughes Incorporated | Multi-stage fracturing with smart frack sleeves while leaving a full flow bore |
US10082002B2 (en) | 2013-10-25 | 2018-09-25 | Baker Hughes, A Ge Company, Llc | Multi-stage fracturing with smart frack sleeves while leaving a full flow bore |
US20150114664A1 (en) * | 2013-10-25 | 2015-04-30 | Baker Hughes Incorporated | Multi-stage Fracturing with Smart Frack Sleeves While Leaving a Full Flow Bore |
US9970251B2 (en) | 2013-11-18 | 2018-05-15 | Weatherford Technology Holdings, Llc | Telemetry operated setting tool |
US9528346B2 (en) * | 2013-11-18 | 2016-12-27 | Weatherford Technology Holdings, Llc | Telemetry operated ball release system |
US10221638B2 (en) | 2013-11-18 | 2019-03-05 | Weatherford Technology Holdings, Llc | Telemetry operated cementing plug release system |
US9428998B2 (en) | 2013-11-18 | 2016-08-30 | Weatherford Technology Holdings, Llc | Telemetry operated setting tool |
US10246965B2 (en) | 2013-11-18 | 2019-04-02 | Weatherford Technology Holdings, Llc | Telemetry operated ball release system |
US9777569B2 (en) | 2013-11-18 | 2017-10-03 | Weatherford Technology Holdings, Llc | Running tool |
US20150136396A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Telemetry operated ball release system |
US9523258B2 (en) | 2013-11-18 | 2016-12-20 | Weatherford Technology Holdings, Llc | Telemetry operated cementing plug release system |
EP3333357A1 (en) * | 2013-11-18 | 2018-06-13 | Weatherford Technology Holdings, LLC | Telemetry operated ball release system |
US10422216B2 (en) | 2013-11-18 | 2019-09-24 | Weatherford Technology Holdings, Llc | Telemetry operated running tool |
CN106030026A (en) * | 2014-01-24 | 2016-10-12 | 完成研究股份公司 | Multistage high pressure fracturing system with counting system |
WO2015109407A1 (en) | 2014-01-24 | 2015-07-30 | Completions Research Ag | Multistage high pressure fracturing system with counting system |
EP3097257A4 (en) * | 2014-01-24 | 2017-09-27 | Completions Research AG | Multistage high pressure fracturing system with counting system |
NO344179B1 (en) * | 2014-08-22 | 2019-09-30 | Halliburton Energy Services Inc | Method, system and apparatus for treating a subterranean formation |
US20170204698A1 (en) * | 2014-08-22 | 2017-07-20 | Halliburton Energy Services, Inc. | Downhole sub with collapsible baffle |
US10364637B2 (en) * | 2014-08-22 | 2019-07-30 | Halliburton Energy Services, Inc. | Downhole sub with collapsible baffle and methods for use |
US9910026B2 (en) | 2015-01-21 | 2018-03-06 | Baker Hughes, A Ge Company, Llc | High temperature tracers for downhole detection of produced water |
US10378303B2 (en) | 2015-03-05 | 2019-08-13 | Baker Hughes, A Ge Company, Llc | Downhole tool and method of forming the same |
US10385257B2 (en) | 2015-04-09 | 2019-08-20 | Highands Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
US10012064B2 (en) | 2015-04-09 | 2018-07-03 | Highlands Natural Resources, Plc | Gas diverter for well and reservoir stimulation |
US10385258B2 (en) | 2015-04-09 | 2019-08-20 | Highlands Natural Resources, Plc | Gas diverter for well and reservoir stimulation |
US10344204B2 (en) | 2015-04-09 | 2019-07-09 | Diversion Technologies, LLC | Gas diverter for well and reservoir stimulation |
US10221637B2 (en) | 2015-08-11 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing dissolvable tools via liquid-solid state molding |
US10016810B2 (en) | 2015-12-14 | 2018-07-10 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof |
US10119364B2 (en) * | 2016-03-24 | 2018-11-06 | Baker Hughes, A Ge Company, Llc | Sleeve apparatus, downhole system, and method |
US10982520B2 (en) | 2016-04-27 | 2021-04-20 | Highland Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
US10538988B2 (en) | 2016-05-31 | 2020-01-21 | Schlumberger Technology Corporation | Expandable downhole seat assembly |
CN111479983A (en) * | 2017-12-20 | 2020-07-31 | 舍勒-布勒克曼油田设备公司 | Trap device for downhole tools |
WO2019122004A3 (en) * | 2017-12-20 | 2019-08-01 | Schoeller-Bleckmann Oilfield Equipment Ag | Catcher device for a downhole tool |
GB2569587A (en) * | 2017-12-20 | 2019-06-26 | Schoeller Bleckmann Oilfield Equipment Ag | Catcher device for downhole tool |
US11332990B2 (en) | 2017-12-20 | 2022-05-17 | Schoeller-Bleckmann Oilfield Equipment Ag | Catcher device for a downhole tool |
GB2569587B (en) * | 2017-12-20 | 2022-06-15 | Schoeller Bleckmann Oilfield Equipment Ag | Catcher device for downhole tool |
US11959666B2 (en) | 2022-08-26 | 2024-04-16 | Colorado School Of Mines | System and method for harvesting geothermal energy from a subterranean formation |
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GB2435659A (en) | 2007-09-05 |
GB2435657A (en) | 2007-09-05 |
GB2435656B (en) | 2009-06-03 |
GB2435656A (en) | 2007-09-05 |
GB0709059D0 (en) | 2007-06-20 |
GB0709067D0 (en) | 2007-06-20 |
GB2424233B (en) | 2009-06-03 |
GB2424233A (en) | 2006-09-20 |
GB2435658A (en) | 2007-09-05 |
GB0603394D0 (en) | 2006-03-29 |
GB2435659B (en) | 2009-06-24 |
GB0709070D0 (en) | 2007-06-20 |
GB0709068D0 (en) | 2007-06-20 |
GB2435657B (en) | 2009-06-03 |
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