CN104775801B - A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater - Google Patents
A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater Download PDFInfo
- Publication number
- CN104775801B CN104775801B CN201510169588.8A CN201510169588A CN104775801B CN 104775801 B CN104775801 B CN 104775801B CN 201510169588 A CN201510169588 A CN 201510169588A CN 104775801 B CN104775801 B CN 104775801B
- Authority
- CN
- China
- Prior art keywords
- valve
- air
- fixedly installed
- combustion
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
Abstract
The invention discloses a kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater, be by combustion heat-exchange system, vacuum heat-preserving system, Monitoring and control system and heater compartment composition, combustion gas is injected on ground, air, and control its proportioning in down-hole, combustion heat-exchange system carries out down-hole to combustion gas and air and lights, and the nitrogen at room for injecting ground high pressure carries out heating in well, reduce the thermal loss of heater using vacuum heat-preserving system, well temperature is realized using ground monitoring and control system, pressure, the monitor in real time and adjustment of flow and air-fuel ratio, the high temperature nitrogen of generation carries out in-situ retorting in shaft bottom to oil shale layer.Low cost of the present invention, environmental pollution are little, and the level of resources utilization is high and discarded object is few, high working efficiency, reduce the thermal loss in recovery process, and tar productivity is high, and floor space is few, can develop deep layer, the oil shale resources of high thickness.
Description
Technical field
The present invention relates to a kind of oil shale underground in situ conversion heater, more particularly to a kind of oil shale underground in situ
Conversion vacuum screw tubular type nitrogen heater.
Background technology
Oil shale retorting is divided into ground destructive distillation and two kinds of underground retoring, and ground retorting technique is asked due to technique defect itself
Topic, have the shortcomings that being much difficult to avoid that, for example:Utilization rate is low, high pollution, small scale, high cost, gas retort produce waste residue
High number, takes a large amount of land areas, is not easily recycled and utilizes.Underground retoring is also referred to as in-situ retorting, refers to bury in ground
Under oil shale without exploitation, directly try to heat destructive distillation in underground, the oil gas of output is exported to ground, and condensation obtains shale
Oil and fixed gas.
In-situ retorting technology according to oil shale layer by hot mode difference, can be divided into conduction heating, Convective Heating, radiation plus
Hot three types of technology, at present, widely used conduction heating mode heats rammell, the in-situ conversion work for mainly having the Shell Oil Company
The GFC technology of skill technology (ICP), the Electrof racTM technology of Mobil Oil Corporation and IEP company.
ICP technology, electrical heating process are complicated, and fault is many and hardly possible is excluded；Heater element power is little, and power consumption is many, sweep area
Little, high cost, the Electrof racTM technology of Mobil Oil Corporation, blowdown are poor, easily cause water pollution, the GFC of IEP company
Technology, device structure are complicated, and environmental requirement is high, using not extensive.
The Convective Heating technology of Institutes Of Technology Of Taiyuan, needs substantial amounts of water, environmental disruption is acted on very big.
The technology of radiant heating pattern is taken to be mainly LLNL radio-frequency technique, firing rate is slow.
Content of the invention
The invention aims to solve above-mentioned existing in-situ retorting technology low to oil shale heating high energy consumption, efficiency, plus
The problems such as thermal process complexity, firing equipment complex structure, apparatus expensive, and a kind of oil shale underground in situ conversion vacuum is provided
Helix tube type nitrogen heater.
The present invention is made up of combustion heat-exchange system, vacuum heat-preserving system, Monitoring and control system and heater compartment, combustion
Burn heat-exchange system to be fixedly installed in heater box body, vacuum heat-preserving system is fixedly installed on the outer wall of heater compartment and inwall
Between, Monitoring and control system is fixedly installed in heater compartment；
Combustion heat-exchange system includes combustion apparatus and helix tube composition, and helix tube is around being located at outside the casing air of combustion apparatus
Portion, combustion apparatus include Gas Pipe, casing air, air guide flue gas sub-assembly, igniter, burner nozzle, smoke-box, first unidirectional
Valve and the second check valve, Gas Pipe are fixedly installed in casing air, and casing air is fixedly installed on air guide flue gas sub-assembly,
First check valve is fixedly installed on Gas Pipe bottom, and the second check valve is fixedly installed on heater compartment bottom, and igniter is fixed
Burner nozzle top is arranged on, turbulent baffle is fixedly installed in helix tube；
Vacuum heat-preserving system includes vacuum valve element, screw, vacuum chamber and temperature compensator, vacuum valve element, screw, vacuum chamber
And temperature compensator is fixedly installed between the outer wall of heater compartment and inwall；
Monitoring and control system includes monitoring system and control valve system, and monitoring system includes thermometer conductor interface, survey
Warm support, flame detector, air-fuel ratio sensor and several first pressure tables, thermometer conductor interface are fixedly installed on helix tube
Top, thermometric support are fixedly installed on big boring cover, and flame detector and air-fuel ratio sensor are fixedly installed on air door plate, number
Individual first pressure table is fixedly installed in switch board；
Control valve system includes Gas Pipe control valve and air hose control valve, and Gas Pipe control valve is fixedly installed on Gas Pipe
At the mouth of pipe, air hose control valve is fixedly installed at the casing air mouth of pipe, gas control valve bag have first ventilation ball valve, first
Check-valves, the first pressure regulator valve, first pressure switch, the first magnetic valve and first flow regulating valve, air hose control valve include the
Two-way balloon valve, second check-valve, the second pressure regulator valve, second pressure switch, the second magnetic valve, second flow regulating valve and combustion mouth
Valve.
Heater compartment has big boring cover and air door plate.
The operation principle and process of the present invention：
When the present invention works, fuel gas transmission pump and air compressor is opened, air-fuel ratio sensor is driven, by gas inlet
Mouth b and air inlet c is passed through combustion gas and air, and combustion gas and air are mixed with certain proportion in smoke-box, when cigarette indoor fuel gas
Reach after requirement with the amount of air, drive ignition device and flame detector, the mixture of combustion gas and air is lighted in smoke-box, combustion
After burning, gas can be controlled in real time by outlet a discharge, air-fuel ratio sensor and the flame sensor real-time detection burning degree of discharging fume
Air demand processed and the proportioning of combustion gas and air, nitrogen are entered in helix tube by nitrogen inlet e, and combustion gas and air burning are produced
High-temperature flue gas heat will be passed to the nitrogen by helix tube in thermal convection current mode, by the temperature of nitrogen and its change pass through
Wire reaches ground through thermometer conductor interface, when nitrogen outlet temperature is reached after 500 DEG C, by Monitoring and control system,
The feeding flow of regulating gas and air, makes nitrogen outlet temperature stabilization at 450 DEG C～500 DEG C, by ground monitoring and control
System, can be with the pressure value in real-time monitoring Gas Pipe, casing air, and the high temperature nitrogen of generation is by nitrogen outlet d in well
Bottom carries out in-situ retorting to oil shale layer.
Beneficial effects of the present invention：
Low cost of the present invention, environmental pollution are little, and the level of resources utilization is high and discarded object is few, high working efficiency, reduces
Thermal loss in recovery process, tar productivity are high, and floor space is few, can develop deep layer, the oil shale resources of high thickness.
Description of the drawings
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the control system schematic diagram of the present invention.
Specific embodiment
Refer to shown in Fig. 1, the present invention is by combustion heat-exchange system, vacuum heat-preserving system, Monitoring and control system and to add
Hot device casing 4 constitutes, and combustion heat-exchange system is fixedly installed in heater compartment 4, and vacuum heat-preserving system is fixedly installed on heating
Between the outer wall of device casing 4 and inwall, Monitoring and control system is fixedly installed in heater compartment 4；
Combustion heat-exchange system includes that combustion apparatus and helix tube 12 constitute, and helix tube 12 is around the air set for being located at combustion apparatus
Outside pipe 112, combustion apparatus includes Gas Pipe 111, casing air 112, air guide flue gas sub-assembly 113, igniter 114, burning
Device nozzle 115, smoke-box 116, the first check valve 117 and the second check valve 118, Gas Pipe 111 are fixedly installed on casing air 112
Interior, casing air 112 is fixedly installed on air guide flue gas sub-assembly 113, and the first check valve 117 is fixedly installed on Gas Pipe 111
Bottom, the second check valve 118 are fixedly installed on 4 bottom of heater compartment, and igniter 114 is fixedly installed on burner nozzle 115
Top, turbulent baffle are fixedly installed in helix tube 12；
Vacuum heat-preserving system includes vacuum valve element 21, screw 22, vacuum chamber 23 and temperature compensator 24, vacuum valve element 21,
Screw 22, vacuum chamber 23 and temperature compensator 24 are fixedly installed between outer wall and the inwall of heater compartment 4；
Monitoring and control system include monitoring system and control valve system, monitoring system include thermometer conductor interface 311,
Thermometric support 312, flame detector 313, air-fuel ratio sensor 314 and several first pressure tables 315, thermometer conductor interface
311 are fixedly installed on 12 top of helix tube, thermometric support 312 is fixedly installed on big boring cover 41, flame detector 313 and air-fuel
It is fixedly installed on air door plate 42 than sensor 314, several first pressure tables 315 are fixedly installed in switch board；
Control valve system includes Gas Pipe control valve 321 and air hose control valve 322, and Gas Pipe control valve 321 is fixed and set
Put at 111 mouth of pipe of Gas Pipe, air hose control valve 322 is fixedly installed at 112 mouth of pipe of casing air, gas control valve bag has
The first ventilation ball valve 3211, first check-valve 3212, the first pressure regulator valve 3213, first pressure is had to switch the 3214, first magnetic valve
3215th, first flow regulating valve 3216 and filter 3217, air hose control valve 322 include the second ventilation ball valve 3221, second
Check-valves 3222, the second pressure regulator valve 3223, second pressure switch the 3224, second magnetic valve 3225, second flow regulating valve 3226,
Filter 3227 and combustion mouth valve 3228.
Heater compartment 4 is with big boring cover 41 and air door plate 42.
The operation principle and process of the present invention：
Shown in Fig. 1 and Fig. 2, when the present invention works, fuel gas transmission pump and air compressor is opened, drive air-fuel ratio sensor
314, combustion gas and air are passed through by gas inlet b and air inlet c, combustion gas and air in the smoke-box 116 with necessarily than
Example mixing, after the amount of combustion gas and air in smoke-box 116 reaches requirement, drive ignition device 114 and flame detector 313, in cigarette
The mixture of combustion gas and air is lighted in room 116, and after burning, gas is by outlet a discharge, air-fuel ratio sensor 314 and the fire of discharging fume
313 real-time detection burning degree of flame sensor, can be with real-time control air demand and the proportioning of combustion gas and air, and nitrogen passes through nitrogen
Air inlet e is entered in helix tube 12, and heat will be passed to by the high-temperature flue gas that combustion gas and air burning are produced in thermal convection current mode
By the nitrogen of helix tube 12, the temperature of nitrogen and its change are reached ground by wire through thermometer conductor interface 311, when
Nitrogen outlet temperature is reached after 500 DEG C, by Monitoring and control system, the feeding flow of regulating gas and air, and make nitrogen
Outlet temperature is stable at 450 DEG C～500 DEG C, by ground monitoring and control system, can be with real-time monitoring Gas Pipe 111, air
Pressure value in sleeve pipe 112, the high temperature nitrogen of generation carry out in-situ retorting in shaft bottom to oil shale layer by nitrogen outlet d.
Claims (1)
1. a kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater, it is characterised in that：Be by combustion heat-exchange
System, vacuum heat-preserving system, Monitoring and control system and heater compartment (4) composition, combustion heat-exchange system be fixedly installed on plus
In hot device casing (4), vacuum heat-preserving system is fixedly installed between the outer wall of heater compartment (4) and inwall, is monitored and control
System is fixedly installed in heater compartment (4)；
Combustion heat-exchange system includes combustion apparatus and helix tube (12) composition, and helix tube (12) is around the air set for being located at combustion apparatus
Pipe (112) is outside, and combustion apparatus includes Gas Pipe (111), casing air (112), air guide flue gas sub-assembly (113), igniter
(114), burner nozzle (115), smoke-box (116), the first check valve (117) and the second check valve (118), Gas Pipe (111)
It is fixedly installed in casing air (112), casing air (112) is fixedly installed in air guide flue gas sub-assembly (113), first is single
Gas Pipe (111) bottom is fixedly installed on to valve (117), the second check valve (118) is fixedly installed on heater compartment (4) bottom
End, igniter (114) are fixedly installed on burner nozzle (115) top, and turbulent baffle is fixedly installed in helix tube (12)；
Vacuum heat-preserving system includes vacuum valve element (21), screw (22), vacuum chamber (23) and temperature compensator (24), vacuum valve element
(21), screw (22), vacuum chamber (23) and temperature compensator (24) be fixedly installed on the outer wall of heater compartment (4) and inwall it
Between；
Monitoring and control system includes monitoring system and control valve system, and monitoring system includes thermometer conductor interface (311), surveys
Warm support (312), flame detector (313), air-fuel ratio sensor (314) and several first pressure tables (315), thermometer wire
Interface (311) is fixedly installed on helix tube (12) top, thermometric support (312) and is fixedly installed on big boring cover (41), and flame is visited
Survey device (313) and air-fuel ratio sensor (314) is fixedly installed on air door plate (42), several first pressure table (315) fixation sets
Put in switch board；
Control valve system includes Gas Pipe control valve (321) and air hose control valve (322), and Gas Pipe control valve (321) is fixing
It is arranged at Gas Pipe (111) mouth of pipe, air hose control valve (322) is fixedly installed at casing air (112) mouth of pipe, combustion gas control
Valve bag processed has the first ventilation ball valve (3211), first check-valve (3212), the first pressure regulator valve (3213), first pressure switch
(3214), the first magnetic valve (3215), first flow regulating valve (3216) and filter (3217), air hose control valve (322)
Including second ventilation ball valve (3221), second check-valve (3222), the second pressure regulator valve (3223), second pressure switch (3224),
Second magnetic valve (3225), second flow regulating valve (3226), filter (3227) and combustion mouth valve (3228)；
Heater compartment (4) is with big boring cover (41) and air door plate (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169588.8A CN104775801B (en) | 2015-04-13 | 2015-04-13 | A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169588.8A CN104775801B (en) | 2015-04-13 | 2015-04-13 | A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104775801A CN104775801A (en) | 2015-07-15 |
| CN104775801B true CN104775801B (en) | 2017-03-08 |
Family
ID=53617525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510169588.8A Expired - Fee Related CN104775801B (en) | 2015-04-13 | 2015-04-13 | A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775801B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965976B (en) * | 2017-12-25 | 2022-05-27 | 天津港锐石油工程科技有限公司 | Thick oil heating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056057A (en) * | 1996-10-15 | 2000-05-02 | Shell Oil Company | Heater well method and apparatus |
| CN102209835A (en) * | 2008-11-06 | 2011-10-05 | 美国页岩油公司 | Heater and method for recovering hydrocarbons from underground deposits |
| CN102906369A (en) * | 2010-04-27 | 2013-01-30 | 美国页岩油公司 | System for providing uniform heating to subterranean formation for recovery of mineral deposits |
| CN103069104A (en) * | 2010-08-30 | 2013-04-24 | 埃克森美孚上游研究公司 | Wellbore mechanical integrity for in situ pyrolysis |
| CN104481485A (en) * | 2014-11-10 | 2015-04-01 | 中国石油天然气股份有限公司 | Layered ignition device for in-situ combustion |
| CN204532311U (en) * | 2015-04-13 | 2015-08-05 | 吉林大学 | A kind of oil shale underground in situ transforms with vacuum screw tubular type nitrogen heater |
-
2015
- 2015-04-13 CN CN201510169588.8A patent/CN104775801B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056057A (en) * | 1996-10-15 | 2000-05-02 | Shell Oil Company | Heater well method and apparatus |
| CN102209835A (en) * | 2008-11-06 | 2011-10-05 | 美国页岩油公司 | Heater and method for recovering hydrocarbons from underground deposits |
| CN102906369A (en) * | 2010-04-27 | 2013-01-30 | 美国页岩油公司 | System for providing uniform heating to subterranean formation for recovery of mineral deposits |
| CN103069104A (en) * | 2010-08-30 | 2013-04-24 | 埃克森美孚上游研究公司 | Wellbore mechanical integrity for in situ pyrolysis |
| CN104481485A (en) * | 2014-11-10 | 2015-04-01 | 中国石油天然气股份有限公司 | Layered ignition device for in-situ combustion |
| CN204532311U (en) * | 2015-04-13 | 2015-08-05 | 吉林大学 | A kind of oil shale underground in situ transforms with vacuum screw tubular type nitrogen heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104775801A (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108050502A (en) | A kind of helix tube generates the energy conservation and environmental protection warming stove of steam | |
| CN204457711U (en) | A kind of OIH rammell combustion heating system | |
| CN104612642B (en) | Downhole oil shale stratum combusting and heating system | |
| CN110508604A (en) | Energy-efficient combustion gas thermal desorption equipment | |
| CN104775801B (en) | A kind of oil shale underground in situ conversion vacuum screw tubular type nitrogen heater | |
| CN104653158B (en) | Heat storage type combustion heater in a kind of well | |
| CN204532311U (en) | A kind of oil shale underground in situ transforms with vacuum screw tubular type nitrogen heater | |
| CN204630034U (en) | Coiled hot water, steam boiler | |
| CN204476383U (en) | Heat storage type combustion heater in a kind of well | |
| CN107606651A (en) | A kind of heating system and heating system | |
| CN204540267U (en) | A kind of biogas heating system of piggery | |
| CN201909432U (en) | Superconducting boiler with gas produced from coal | |
| CN209130860U (en) | Biomass ebullition cyclone type combustion apparatus | |
| CN203730135U (en) | Power generation device for producer gas combustion gas turbine | |
| CN207584826U (en) | A kind of heating system and heating system | |
| CN202203980U (en) | Energy-saving combustion device adopting combustion method of water electrolysis oxyhydrogen and fuel blending | |
| CN201355083Y (en) | Straw fuel warm air conditioner heating device | |
| CN203776011U (en) | Multi-burner combustion and heating system for frying equipment | |
| CN206130960U (en) | Novel commercial boiler of clean coal gasification burning | |
| CN205448309U (en) | Gaseous heat conduction oil furnace of burning VOC | |
| CN220453663U (en) | Combustion device for in-situ thermal desorption of soil | |
| CN103900075B (en) | A kind of combustion gas constant temperature heat storage burner | |
| KR20100081560A (en) | Retort-typed pellet boiler with dual-combustor | |
| CN206207391U (en) | The clean methanol combustion furnace of heat supply sauna chamber | |
| CN105546811A (en) | Energy-saving environment-friendly water-steam dual-purpose boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20170413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |