CN103573232A - Steam secondary heating and pressurization direct-injection device - Google Patents
Steam secondary heating and pressurization direct-injection device Download PDFInfo
- Publication number
- CN103573232A CN103573232A CN201310533907.XA CN201310533907A CN103573232A CN 103573232 A CN103573232 A CN 103573232A CN 201310533907 A CN201310533907 A CN 201310533907A CN 103573232 A CN103573232 A CN 103573232A
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- steam
- combustion chamber
- oil
- electric
- end cover
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- 239000007924 injection Substances 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000003129 oil well Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 24
- 239000001569 carbon dioxide Substances 0.000 abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000010795 Steam Flooding Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a steam secondary heating and pressurization direct-injection device. The steam secondary heating and pressurization direct-injection device comprises a top end cover (13), a casing (14), an electric heating system (1), a casing pipe (2), an oil pipe (3), a steam pipeline (4), an auxiliary combustion air source pipeline (5), a cable transmission pipeline (6), a blowhole (7), an electric ignition device (8), a combustion chamber (10), a grid combustion chamber wall (11) and a pressure control valve (12), wherein the top of the top end cover is connected with coiled tubing in an oil well, and the bottom of the top end cover is connected with a combustion camber, an electric ignition device and the casing; the casing is provided with the electric heating system; the inner wall of the inner combustion chamber is the grid combustion chamber wall; the combustion chamber and the casing are connected with the bottom of the steam secondary heating and pressurization direct-injection device; and the pressure control valve at the bottom of the steam heating and pressurization device is connected with a steam jet hole in the tail end of equipment. The steam secondary heating and pressurization direct-injection device can be directly installed in a position close to a well bottom oil layer, and produced tail gases such as carbon dioxide are directly injected into the oil layer, so that the oil recovery rate and the efficiency are improved.
Description
Technical field
The secondary steam the present invention relates in oil exploitation process heats supercharging directly spray device, especially in steam flooding exploitation, to oil reservoir, injects superheated steam oil displacement process, and the down-hole secondary of realizing the straight injector layer of steam high temperature heats supercharging device.
Background technology
At present, the secondary recovery mode of oil has multiple, for example steam flooding, carbon dioxide flooding wet goods.The high-temperature steam using in the process of the displacement of reservoir oil, is all through managing defeated transmission or tank car, to be transported to gas injection well head by steam heating boiler station, directly oil reservoir under Injection Well.But compare with the output pressure of steam heating boiler station steam, steam exit pressure and temperature losses under gas injection well are very big, and reason mainly contains two aspects: 1, after steam heating boiler output steam, because distance transportation is long or it is defeated to manage, cause a large amount of thermal losses; 2, the thermal losses of steam in steam injection well.Because energy loss cannot be supplemented naturally, oil field takes ground secondary to heat supercharged steam generator to supplement, and the effect that the even heating device of underground electric heating heats steam is limited, cause the vapor (steam) temperature that enters oil reservoir well below needed temperature, directly affect steam flooding effect.
In order to solve the above problems, the invention provides a kind of calorific value conversion ratio secondary steam high, that volume is little and heat supercharging directly spray device, can substitute ground boiler temperature-increasing pressurization system.This device can be directly installed on and approach oil reservoir position, shaft bottom, by heating the tail gas such as carbon dioxide that produce in the steam of supercharging and combustion process, directly spray in oil reservoir, the thermal efficiency occurring is directly injected in oil reservoir, the heat energy 100% producing is had an effect in oil reservoir, reached the maximum efficiency of steam flooding and the carbon dioxide mix displacement of reservoir oil, can improve rate of oil production and efficiency, improve 30% above oil recovery, and non-pollutant discharge in whole process.
Summary of the invention
Secondary steam provided by the invention heats supercharging directly spray device, comprises top end cover (13), shell (14), electric heating system (1), sleeve pipe (2), oil pipe (3), steam pipe line (4), auxiliary combustion source gas line (5), cable transmission pipeline (6), fumarole (7), electric ignition device (8), combustion chamber (10), grid combustion chamber wall (11) and pressure-control valve (12).Top end cover top is connected with the continuous-tube in oil well, in continuous-tube, be provided with natural gas line, oxygen pipeline, cable transmission pipeline, steam pipe line are connected with ground control centre, the bottom of top end cover is connected with combustion chamber, electric ignition device and shell, shell is with electric heating system, the inwall in internal-combustion chamber is grid combustion chamber wall, adopt special high temperature-resistant material screen cloth to manufacture, combustion chamber heats supercharging directly spray device bottom with shell and secondary steam and is connected, and the pressure-control valve that steam heats supercharging device bottom is connected with equipment end steam jetting hole.
Secondary steam heats supercharging directly spray device and is positioned in oil well, and top of oil horizon is connected with continuous-tube, and afterbody has the external connection devices such as steam injection pipeline, Gas Pipe, oxygen hose, circuit connection.In gas-injection oil-production section, be provided with sleeve pipe 2, oil pipe 3 perforations; By burning line, by fumarole 7 pressurization ejection downwards, auxiliary combustion source gas line 5 is air feed simultaneously; Electric ignition device 8 is comprised of the electric igniter carbon-point and the thermal resistance that connect by cable, in combustion chamber 10, light a fire combustion gas is lighted, flame 9 is sprayed by latticed combustion chamber wall, along gas injection direction, burns downwards, and grid combustion chamber wall 11 is the high carbon containing materials of stainless steel; The injection direction of steam pipe line 4 carrys out set angle according to different geological conditions and steam demand amount, is generally 10 ° of-30 ° of injections, is close to equipment inner wall high pressure and injects, and self-assembling formation vortex flows downward; Steam is subject to flame and outer wall electric heating system 1, and heat conduction increases vapor (steam) temperature; Electric ignition device 8 is powered by cable transmission pipeline 6 with electric heating system; Steam after heating carries out supercharging through pressure-control valve 12, and steam sprays the carbon dioxide mix producing in rear and combustion process and directly sprays into oil reservoir.
In use procedure, beat straight well above oil reservoir, as steamed well, in oil reservoir bottom, steam injection well is carried out to perforation, penetrating out segment length is 1/10th of core intersection.Secondary steam of the present invention heats supercharging directly spray device and is placed on straight well top of oil horizon, and top is connected with steam injection pipe, Gas Pipe, oxygen hose, circuit.High steam is delivered to the outer end that steam heats supercharging device by steam injection stainless steel continuous conduit, plays that secondary heats, pressurization.Underground secondary steam heats the supercharging device match synchronization that heats on supercharging directly spray device and ground and moves, in the time of steam injection, fuel under high pressure is mixed and sprayed into combustion chamber through fumarole after oxygen, by igniter, light, due to pressure-acting, burned flame direction is vertically downward, and straight flame flame is sprayed by latticed combustion chamber wall, flame and vapours second-time burning produce HTHP vapours, reduce heat consume and improve fast vapor (steam) temperature, pressure.The steam that downward combustion chamber is moved by vortex surrounds, and the heat of flame conducts in steam, by 430 ℃ of above and secondary boosters of the lifting temperature of steam.Heat the tail gas such as carbon dioxide that produce in the steam of supercharging and combustion process and directly spray in oil reservoir, reached the maximum efficiency of steam flooding and the carbon dioxide mix displacement of reservoir oil.Tail gas after burning and high-pressure and high-temperature steam spray in oil reservoir by installing after the water booster system of leading portion pressurizes again, play steam combustion tail gas, carbon dioxide complex oil displacing optimum efficiency.
This invention technique device is advanced, adopts natural gas, the supporting electroheat pair accessory system of oxygen combustion, can substitute ground boiler temperature-increasing pressurization system.This device can be directly installed on and approach oil reservoir position, shaft bottom, by heating the tail gas such as carbon dioxide that produce in the steam of supercharging and combustion process, directly spray in oil reservoir, the thermal efficiency occurring is directly injected in oil reservoir, the heat energy 100% producing is had an effect in oil reservoir, reached the maximum efficiency of steam flooding and the carbon dioxide mix displacement of reservoir oil, can improve rate of oil production and efficiency, improve 30% above oil recovery, and non-pollutant discharge in whole process.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram that the even underground steam of column gas electric heats supercharging device
In figure: 1, electric heating system, 2, sleeve pipe, 3, oil pipe, 4, steam pipe line, 5, auxiliary combustion source gas line, 6, cable transmission pipeline, 7, fumarole, 8, electric ignition device, 9, flame, 10, combustion chamber, 11, grid combustion chamber wall, 12, pressure-control valve, 13 top end covers, 14, shell body.
Specific embodiment
As shown in Figure 1, secondary steam heats supercharging directly spray device, is positioned in oil well, and top end cover top is connected with continuous-tube, has steam injection pipe, Gas Pipe, oxygen hose, circuit to connect in continuous-tube, in gas-injection oil-production section, is provided with sleeve pipe 2, oil pipe 3 perforations; By burning line, by fumarole 7 pressurization ejection downwards, auxiliary combustion source of the gas 5 is air feed simultaneously; Electric ignition device 8 is comprised of the electric igniter carbon-point and the thermal resistance that connect by cable, in combustion chamber 10, light a fire combustion gas is lighted, flame 9 is sprayed by latticed combustion chamber wall, along gas injection direction, burns downwards, and grid combustion chamber wall 11 is the high carbon containing materials of stainless steel; Steam pipe line 4 is pressed 20 ° of injections of set angle, is close to equipment inner wall and is vortex and flows downward; Steam is subject to flame and outer wall resistance heater 1, and heat conduction increases vapor (steam) temperature; Electric ignition device 9 is powered by cable transmission pipeline 6 with electric heating system; Steam after heating carries out supercharging through down-hole pressure control valve 12, and steam sprays the carbon dioxide mix producing in rear and combustion process and directly sprays into oil reservoir.
Secondary steam heats supercharging directly spray device and is positioned in oil well, and top of oil horizon is connected with continuous-tube, and afterbody has the external connection devices such as steam injection pipeline, Gas Pipe, oxygen hose, circuit connection.In gas-injection oil-production section, be provided with sleeve pipe 2, oil pipe 3 perforations; By burning line, by fumarole 7 pressurization ejection downwards, auxiliary combustion source gas line 5 is air feed simultaneously; Electric ignition device 8 is comprised of the electric igniter carbon-point and the thermal resistance that connect by cable, in combustion chamber 10, lights a fire combustion gas is lighted, and flame 9 burns downwards along gas injection direction, and grid combustion chamber wall 11 is the high carbon containing materials of stainless steel; The injection direction of steam pipe line 4 is 20 ° of injections, is close to equipment inner wall high pressure and injects, and self-assembling formation vortex flows downward; Steam is subject to the heat conduction of flame and outer wall electric heating system 1, and heat conduction increases vapor (steam) temperature; Electric ignition device 8 is powered by cable transmission pipeline 6 with electric heating system; Steam after heating carries out supercharging through pressure-control valve 12, and steam sprays the carbon dioxide mix producing in rear and combustion process and directly sprays into oil reservoir.
Claims (5)
1. secondary steam heats supercharging directly spray device, comprises top end cover (13), shell (14), electric heating system (1), sleeve pipe (2), oil pipe (3), steam pipe line (4), auxiliary combustion source gas line (5), cable transmission pipeline (6), fumarole (7), electric ignition device (8), combustion chamber (10) and pressure-control valve (12); It is characterized in that, top end cover top is connected with the continuous-tube in oil well, cable transmission pipeline, steam pipe line are connected with ground control centre, the bottom of top end cover is connected with combustion chamber, electric ignition device and shell, shell is with electric heating system, the inwall in internal-combustion chamber is grid combustion chamber wall (11), and pressure-control valve is located at bottom.
2. secondary steam as claimed in claim 1 heats supercharging directly spray device, it is characterized in that, electric ignition device is comprised of the electric igniter carbon-point and the thermal resistance that connect by cable, in combustion chamber, light a fire combustion gas is lighted, flame is sprayed by latticed combustion chamber wall, along gas injection direction, burns downwards.
3. secondary steam as claimed in claim 2 heats supercharging directly spray device, it is characterized in that, grid combustion chamber wall adopts special high temperature-resistant material screen cloth to manufacture.
4. secondary steam as claimed in claim 3 heats supercharging directly spray device, it is characterized in that, the injection direction of steam pipe line is made as 10 °-30 °, is close to equipment inner wall high pressure and injects, and steam natural forms vortex and flows downward; Flame is sprayed by latticed combustion chamber wall, and flame and vapours second-time burning produce HTHP vapours, and steam is subject to the heat conduction of flame and outer wall electric heating system.
5. the secondary steam as described in claim 3 or 4 heats supercharging directly spray device, it is characterized in that, electric ignition device and electric heating system are powered by cable transmission pipeline, and the steam after heating carries out supercharging through pressure-control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533907.XA CN103573232B (en) | 2013-11-01 | 2013-11-01 | Secondary steam heats pressurization directly spray device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533907.XA CN103573232B (en) | 2013-11-01 | 2013-11-01 | Secondary steam heats pressurization directly spray device |
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| Publication Number | Publication Date |
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| CN103573232A true CN103573232A (en) | 2014-02-12 |
| CN103573232B CN103573232B (en) | 2019-06-18 |
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| CN201310533907.XA Active CN103573232B (en) | 2013-11-01 | 2013-11-01 | Secondary steam heats pressurization directly spray device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194140A (en) * | 2016-08-29 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Shaft bottom water drainage gas production device and method thereof |
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Igniter and oilfield exploitation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3880235A (en) * | 1969-12-30 | 1975-04-29 | Sun Oil Co Delaware | Method and apparatus for igniting well heaters |
| US5360067A (en) * | 1993-05-17 | 1994-11-01 | Meo Iii Dominic | Vapor-extraction system for removing hydrocarbons from soil |
| CN101539011A (en) * | 2009-04-30 | 2009-09-23 | 辽河石油勘探局 | Fire flood eclectic ignition method |
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| CN102352745A (en) * | 2011-10-25 | 2012-02-15 | 联合石油天然气投资有限公司 | Removable electric ignition device for in-situ combustion and application method thereof |
| CN203188989U (en) * | 2013-04-23 | 2013-09-11 | 辽宁东戴河新区瑞实石油科技有限公司 | Oil well heating vapor generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX354032B (en) * | 2011-07-27 | 2018-02-08 | World Energy Systems Incorporated | APPARATUS and METHODS FOR RECOVERY OF HYDROCARBONS. |
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2013
- 2013-11-01 CN CN201310533907.XA patent/CN103573232B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880235A (en) * | 1969-12-30 | 1975-04-29 | Sun Oil Co Delaware | Method and apparatus for igniting well heaters |
| US5360067A (en) * | 1993-05-17 | 1994-11-01 | Meo Iii Dominic | Vapor-extraction system for removing hydrocarbons from soil |
| CN102282337A (en) * | 2009-01-16 | 2011-12-14 | 弗瑞德·施奈德 | Apparatus and method for downhole steam generation and enhanced oil recovery |
| CN101539011A (en) * | 2009-04-30 | 2009-09-23 | 辽河石油勘探局 | Fire flood eclectic ignition method |
| CN201963210U (en) * | 2010-12-23 | 2011-09-07 | 中国石油天然气股份有限公司 | Fireflood gas injection electric ignition process column |
| CN102242626A (en) * | 2011-07-19 | 2011-11-16 | 中国石油天然气股份有限公司 | Steam drive exploitation method for heavy oil reservoir |
| CN102352745A (en) * | 2011-10-25 | 2012-02-15 | 联合石油天然气投资有限公司 | Removable electric ignition device for in-situ combustion and application method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Igniter and oilfield exploitation method |
| CN106194140A (en) * | 2016-08-29 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Shaft bottom water drainage gas production device and method thereof |
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| Publication number | Publication date |
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| CN103573232B (en) | 2019-06-18 |
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Effective date of registration: 20210426 Address after: Workshop B2, No. 1123, Shengyuan Street 2nd Road, Dongying District, Dongying City, Shandong Province 257000 Patentee after: Dongying Yuhuang Energy Technology Co., Ltd Address before: 100000, Beijing, Haidian District Sijiqing Township North Village Road, No. 25 static core garden, B seat Patentee before: Luan Tian |
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