CN104389571A - Method for mining uniclinal structure oil pool in combustion of oil in-situ - Google Patents
Method for mining uniclinal structure oil pool in combustion of oil in-situ Download PDFInfo
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- CN104389571A CN104389571A CN201410587525.XA CN201410587525A CN104389571A CN 104389571 A CN104389571 A CN 104389571A CN 201410587525 A CN201410587525 A CN 201410587525A CN 104389571 A CN104389571 A CN 104389571A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 31
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005065 mining Methods 0.000 title abstract 2
- 239000003921 oil Substances 0.000 claims abstract description 211
- 239000007924 injection Substances 0.000 claims abstract description 114
- 238000002347 injection Methods 0.000 claims abstract description 114
- 239000007789 gas Substances 0.000 claims abstract description 85
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000003546 flue gas Substances 0.000 claims abstract description 53
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000010779 crude oil Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/168—Injecting a gaseous medium
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/40—Separation associated with re-injection of separated materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Treating Waste Gases (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a method for mining a uniclinal structure oil pool in combustion of oil in-situ. The method comprises the following steps: (1) a well pattern is deployed; (2) air is injected into an oil layer from an oil pipe of a gas injection well; and the oil layer is ignited to displace crude oil; (3) generated hot oil and flue gas are upwards returned by an oil pipe of a production well; (4) the flue gas is injected into the oil layer from an oil sleeve annulus of the gas injection well after being separated by a gas-liquid separator; (5) when a fire wire is downwards burnt to an ejection hole section of a first-tier production well, the gas injection well is changed to a flue gas reinjection well, and the first-tier production well is changed to a fireflooding gas injection well; and (6) the air is injected into the oil layer from an oil pipe of the first-tier production well; generated hot oil and the flue gas are upwards returned by oil pipes of second-tier and third-tier production wells; and the flue gas is renewedly injected into the oil layer from an oil sleeve annulus of an original gas injection well and the oil pipe. The method adopts the reinjection of the flue gas to form a manual gas cap, so that the zero emission of the flue gas is realized, and the quantity of the injected air and the operation cost are reduced; and the manual gas cap is used for effectively displacing untouched reserves of a combustion streaming area, so that the oil pool recovery efficiency is improved.
Description
Technical field
The invention relates to a kind of combustion in situ oil production method, particularly relate to a kind of for high dip angle thin oil and Development of Viscous Crude Oil to improve the method for the combustion in situ exploitation monoclinal structure oil reservoir of crude oil recovery ratio.
Background technology
Oil reservoir structure dip is more than or equal to the high dip angle monoclinal structure oil reservoir of 7 °, adopt conventional combustion in situ exploitation, during from structure high-order bit to lower location of the structure air injection, because atmospheric density is lower, in injection process, air is automatically to the migration of structure high-order bit, therefore will backfill burned region, large quantity of air is caused to waste, and due to the expansion gradually of burned region, the air injection speed of needs also will constantly increase, and causes running cost to improve constantly thereupon; And if from lower location of the structure air injection, then due to air from trend structure high-order bit migration, cause live wire be difficult to control, combustion in situ risk is larger.Therefore, for structure high dip angle oil reservoir, how reducing air Injection amount, reduce cost of winning, is that conventional combustion in situ needs the urgent key issue solved.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes the method for a kind of combustion in situ exploitation monoclinal structure oil reservoir, to overcome the defect of prior art.
Summary of the invention
The object of the present invention is to provide a kind of combustion in situ to exploit the method for monoclinal structure oil reservoir, the flue gas re-injection adopting burning to produce forms artificial gas cap, to realize the flue gas zero-emission produced of burning, reduces and injects air capacity and running cost; Utilize the non-producing reserves of artificial gas cap effective displacement burning periptery, to improve oil recovery.
The object of the present invention is achieved like this, a kind of method of combustion in situ exploitation monoclinal structure oil reservoir, and the method at least comprises the following steps:
(1) dispose well pattern, the perforating modes of gas injection well and producing well is set;
Dispose at least a bite gas injection well in the oil reservoir structure extreme higher position of updip direction, dispose the producing well of more than a bite or a bite successively to form flooding pattern along downdip direction; Producing well is called a line producing well, two wires producing well, three line producing wells successively along downdip direction, and by that analogy; Between gas injection well and producing well, between producing well and producing well in plane in a distance; Gas injection well, producing well be difference perforation in the middle part of top of oil horizon and oil reservoir all, enter in the middle part of oil pipe to oil reservoir all down in the pit shaft of gas injection well and producing well, and in the middle part of top of oil horizon and oil reservoir between oil jacket annular space in packer is set to separate two perforated intervals in the middle part of top of oil horizon and oil reservoir; Gas injection and oil recovery respectively from oil pipe, oil jacket annular space;
(2) initial stage is from gas injection well oil pipe to oil reservoir air injection, lights oil reservoir and displace crude oil;
(3) burning produce deep fat and the oil pipe of flue gas via a line producing well, two wires producing well, three line producing wells and more producing wells on return ground;
(4) flue gas refills oil reservoir via after gas-liquid separator separates from the top perforated interval of gas injection well oil jacket annular space;
(5) when live wire is burned to a line producing well perforated interval downwards, original gas injection well changes flue gas reinjection well into, and a line producing well changes fireflood gas injection well into, from oil jacket annular space and the oil pipe injection of flue gas simultaneously of original gas injection well;
(6) from a line producing well oil pipe to continuous oil reservoir air injection, the deep fat that burning produces and the oil pipe of flue gas via two wires producing well, three line producing wells and more producing wells return ground, then from the oil jacket annular space of original gas injection well oil jacket annular space and oil pipe and a line producing well, flue gas is refilled oil reservoir; And by that analogy.
In a better embodiment of the present invention, the structure dip of monoclinal structure oil reservoir is more than or equal to 7 °.
In a better embodiment of the present invention, in step (1), at plane 50-500 rice apart between gas injection well and producing well, between producing well and producing well.
From the above mentioned, the method for combustion in situ exploitation monoclinal structure oil reservoir of the present invention, disposes at least a bite gas injection well in the oil reservoir structure extreme higher position of updip direction, disposes a line, two wires, three lines and more producing wells at least flatly successively along downdip direction; Gas injection well and producing well be the perforation respectively at top of oil horizon and middle part all, and in oil jacket annular space between top of oil horizon and middle part under enter thermal packer to separate two perforated intervals; Enter in the middle part of oil pipe to oil reservoir under in gas injection well and producing well pit shaft, gas injection and oil recovery can be distinguished from oil jacket annular space.Initial stage is from gas injection well oil pipe to continuous oil reservoir air injection, light oil reservoir and displace crude oil, the deep fat that burning produces and flue gas return ground via on the oil pipe of one, two, three lines and more producing wells, and flue gas refills oil reservoir via after gas-liquid separator separates from the top perforated interval of gas injection well oil jacket annular space; When live wire is burned to a line producing well perforated interval downwards, original gas injection well changes flue gas reinjection well into, and a line producing well changes fireflood gas injection well into, from oil jacket annular space and the oil pipe injection of flue gas simultaneously of original gas injection well; From a line producing well oil pipe to continuous oil reservoir air injection, the deep fat that burning produces and flue gas return ground via on the oil pipe of two, three lines and more producing wells, from the oil jacket annular space of original gas injection well oil jacket annular space and oil pipe and a line producing well, flue gas is refilled oil reservoir again, and by that analogy.Utilize the flue gas re-injection of high dip angle oil reservoir to make up burned region space, reduce air Injection amount, reduce cost of winning, improve combustion in situ development benefit.
Method of the present invention is applicable to thin oil and the heavy crude reservoir that structure dip is more than or equal to all kinds of applicable combustion in situ exploitation of 7 °.The method of combustion in situ exploitation monoclinal structure oil reservoir of the present invention has following beneficial effect:
(1) the present invention is in fireflood development process, a large amount of flue gases that burning produces are recycled into top oil reservoir by ground gas-liquid separator together with residual air, and non-discharge ground, therefore avoid a large amount of toxic gas environmental pollution such as hydrogen sulfide, sulfur dioxide, carbon monoxide that burning produces, achieve zero-emission;
(2) by flue gas re-injection, the waste heat that the waste gas making full use of burning generation carries, avoids amount of heat and is lost in air; Utilize this portion gas to fill up burned region space, save a large amount of air Injections, low-cost high-efficiency exploitation can be realized;
(3) oil reservoir structure dip is more than or equal to the high dip angle monoclinal structure oil reservoir of 7 °, when adopting combustion in situ of the present invention to develop, during from structure high-order bit to lower location of the structure air injection, burning produces flue gas and constantly fills up burned region space, flue gas will form an artificial gas cap at burned region, and constantly expand along with the carrying out to the burning of structure downdip direction and expand to structure downdip direction, have a down dip in expanding course at artificial gas cap to structure, the non-producing reserves that a large amount of live wire streams region will effectively be involved, and by displacement in the producing well of structure downdip direction, therefore, the displacement effect of artificial gas cap will expand swept volume further on fireflood basis, and improves oil recovery factor.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1: be well site deployment and the exploitation schematic diagram of method one specific embodiment of combustion in situ exploitation monoclinal structure oil reservoir of the present invention.
Reference numeral:
1-gas injection well; 2-mono-line producing well; 3-two wires producing well; 4-tri-line producing well;
5-packer; 6-oil jacket annular space; 7-burning live wire leading edge; 8-pneumatic jack;
9-oil reservoir; 11-oil pipe; 12-sleeve pipe;
21-bottom perforated interval; 22-top perforated interval; θ-structure dip;
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
The present invention proposes the method for a kind of combustion in situ exploitation monoclinal structure oil reservoir, dispose at least a bite gas injection well in the oil reservoir structure extreme higher position of the updip direction of monoclinal structure oil reservoir, dispose the producing well of more than a bite or a bite successively to form flooding pattern along downdip direction; Producing well is called a line producing well, two wires producing well, three line producing wells successively along downdip direction, and by that analogy; Between gas injection well and producing well, between producing well and producing well in plane in a distance; Gas injection well, producing well be difference perforation in the middle part of top of oil horizon and oil reservoir all, enter in the middle part of oil pipe to oil reservoir all down in the pit shaft of gas injection well and producing well, and in the middle part of top of oil horizon and oil reservoir between oil jacket annular space in packer is set to separate two perforated intervals in the middle part of top of oil horizon and oil reservoir; Gas injection and oil recovery respectively from oil pipe, oil jacket annular space; Initial stage is from gas injection well oil pipe to continuous oil reservoir air injection, light oil reservoir and displace crude oil, the deep fat that burning produces and flue gas return ground via on the oil pipe of one, two, three lines and more producing wells, and flue gas refills oil reservoir via after gas-liquid separator separates from the top perforated interval of gas injection well oil jacket annular space; When live wire is burned to a line producing well perforated interval downwards, original gas injection well changes flue gas reinjection well into, and a line producing well changes fireflood gas injection well into, from oil jacket annular space and the oil pipe injection of flue gas simultaneously of original gas injection well; From a line producing well oil pipe to continuous oil reservoir air injection, the deep fat that burning produces and flue gas return ground via on the oil pipe of two, three lines and more producing wells, from the oil jacket annular space of original gas injection well oil jacket annular space and oil pipe and a line producing well, flue gas is refilled oil reservoir again, and by that analogy.Utilize the flue gas re-injection of high dip angle oil reservoir to make up burned region space, reduce air Injection amount, reduce cost of winning, improve combustion in situ development benefit.
With specific embodiment, method of the present invention is made an explanation below.
Embodiment one
As shown in Figure 1, the present embodiment provides a kind of combustion in situ to exploit the method for monoclinal structure oil reservoir, and the structure dip θ of this oil reservoir is 7 °, adopts following steps to carry out:
(1) dispose well pattern, the perforating modes of gas injection well and producing well is set;
Dispose a bite gas injection well 1 in the oil reservoir structure extreme higher position of updip direction, dispose three mouthfuls of producing wells successively along downdip direction, be respectively a line producing well 2, two wires producing well 3 and three line producing wells 4; In plane (horizontal range) 500 meters apart between gas injection well and producing well, between producing well and producing well; Gas injection well and producing well all at the top of oil reservoir 9 and middle part perforation respectively, form top perforated interval 22 and bottom perforated interval 21; Enter down respectively in the middle part of oil pipe 11 to oil reservoir in gas injection well and producing well wellbore casing 12, in the oil jacket annular space 6 between top of oil horizon and middle part, thermal packer 5 is set, to separate two perforated intervals 21,22; Gas injection and oil recovery can be distinguished from oil pipe 11 and oil jacket annular space 6.The concrete technology of described packer 5 adopts disclosed technique in the industry to carry out.
(2) initial stage is from the oil pipe 11 of gas injection well 1 to continuous oil reservoir air injection, utilizes chemic ignition mode to light oil reservoir and displace crude oil; Ignition process adopts general mode in the industry to carry out, and continues air injection to maintain oil reservoir burning, and air Injection speed is 20 tons/day;
(3) burning produce deep fat and the oil pipe 11 of flue gas via a line producing well 2, two wires producing well 3 and three line producing wells 4 on return ground; The most high production speed of individual well fluid is 30 tons/day;
(4) flue gas is via after the gas-liquid separator (not shown) separation on ground, refills oil reservoir from the top perforated interval 22 of gas injection well 1 oil jacket annular space 6;
(5) when live wire leading edge 7 of burning is burned to the perforated interval of a line producing well 2 downwards, original gas injection well 1 changes flue gas reinjection well into, and a line producing well 2 changes fireflood gas injection well into, from oil jacket annular space 6 and oil pipe 11 injection of flue gas simultaneously of original gas injection well 1;
(6) from the oil pipe 11 of a line producing well 2 to continuous oil reservoir air injection, the deep fat that burning produces and flue gas return ground via on the oil pipe 11 of two wires producing well 3 and three line producing wells 4, with the oil jacket annular space 6 of oil pipe 11 and a line producing well 2, flue gas is refilled oil reservoir from the oil jacket annular space 6 of original gas injection well 1 again, and by that analogy.
The present embodiment adopts above-mentioned steps and operating parameter, the successful implementation combustion in situ exploitation of this high dip angle oil reservoir; There are two aspects and give prominence to effect: accumulative air capacity of injecting decreases half than conventional combustion in situ exploitation, and operating cost reduces 30%, and economic benefit significantly improves; The artificial flue gas pneumatic jack 8 that re-injection is formed effectively involves, displacement employed the crude oil in baked wheaten cake periptery (Wei Ran district), and recovery ratio improves 10% than conventional combustion in situ exploitation.
Embodiment two
As shown in Figure 1, the present embodiment provides a kind of combustion in situ to exploit the method for monoclinal structure oil reservoir, and the structure dip θ of this oil reservoir is 10 °, adopts following steps to carry out:
(1) dispose well pattern, the perforating modes of gas injection well and producing well is set;
Dispose a bite gas injection well 1 in the oil reservoir structure extreme higher position of updip direction, dispose three mouthfuls of producing wells successively along downdip direction, be respectively a line producing well 2, two wires producing well 3 and three line producing wells 4; In plane (horizontal range) 50 meters apart between gas injection well and producing well, between producing well and producing well; Gas injection well and producing well all at the top of oil reservoir 9 and middle part perforation respectively, form top perforated interval 22 and bottom perforated interval 21; Enter down respectively in the middle part of oil pipe 11 to oil reservoir in gas injection well and producing well wellbore casing 12, in the oil jacket annular space 6 between top of oil horizon and middle part, thermal packer 5 is set, to separate two perforated intervals 21,22; Gas injection and oil recovery can be distinguished from oil pipe 11 and oil jacket annular space 6.The concrete technology of described packer 5 adopts disclosed technique in the industry to carry out.
(2) initial stage is from the oil pipe 11 of gas injection well 1 to continuous oil reservoir air injection, utilizes chemic ignition mode to light oil reservoir and displace crude oil; Ignition process adopts general mode in the industry to carry out, and continues air injection to maintain oil reservoir burning, and air Injection speed is 50 tons/day;
(3) burning produce deep fat and the oil pipe 11 of flue gas via a line producing well 2, two wires producing well 3 and three line producing wells 4 on return ground; The most high production speed of individual well fluid is 50 tons/day;
(4) flue gas is via after the gas-liquid separator (not shown) separation on ground, refills oil reservoir from the top perforated interval 22 of gas injection well 1 oil jacket annular space 6;
(5) when live wire leading edge 7 of burning is burned to the perforated interval of a line producing well 2 downwards, original gas injection well 1 changes flue gas reinjection well into, and a line producing well 2 changes fireflood gas injection well into, from oil jacket annular space 6 and oil pipe 11 injection of flue gas simultaneously of original gas injection well 1;
(6) from the oil pipe 11 of a line producing well 2 to continuous oil reservoir air injection, the deep fat that burning produces and flue gas return ground via on the oil pipe 11 of two wires producing well 3 and three line producing wells 4, with the oil jacket annular space 6 of oil pipe 11 and a line producing well 2, flue gas is refilled oil reservoir from the oil jacket annular space 6 of original gas injection well 1 again, and by that analogy.
The present embodiment adopts above-mentioned steps and operating parameter, the successful implementation combustion in situ exploitation of this high dip angle oil reservoir; There are two aspects and give prominence to effect: accumulative air capacity of injecting decreases 2/3 than conventional combustion in situ exploitation, and operating cost reduces 40%, and economic benefit significantly improves; The artificial flue gas pneumatic jack 8 that re-injection is formed effectively involves, displacement employed the crude oil in baked wheaten cake periptery (Wei Ran district), and recovery ratio improves 15% than conventional combustion in situ exploitation.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (3)
1. a method for combustion in situ exploitation monoclinal structure oil reservoir, the method at least comprises the following steps:
(1) dispose well pattern, the perforating modes of gas injection well and producing well is set;
Dispose at least a bite gas injection well in the oil reservoir structure extreme higher position of updip direction, dispose the producing well of more than a bite or a bite successively to form flooding pattern along downdip direction; Producing well is called a line producing well, two wires producing well, three line producing wells successively along downdip direction, and by that analogy; Between gas injection well and producing well, between producing well and producing well in plane in a distance; Gas injection well, producing well be difference perforation in the middle part of top of oil horizon and oil reservoir all, enter in the middle part of oil pipe to oil reservoir all down in the pit shaft of gas injection well and producing well, and in the middle part of top of oil horizon and oil reservoir between oil jacket annular space in packer is set to separate two perforated intervals in the middle part of top of oil horizon and oil reservoir; Gas injection and oil recovery respectively from oil pipe, oil jacket annular space;
(2) initial stage is from gas injection well oil pipe to oil reservoir air injection, lights oil reservoir and displace crude oil;
(3) burning produce deep fat and the oil pipe of flue gas via a line producing well, two wires producing well, three line producing wells and more producing wells on return ground;
(4) flue gas refills oil reservoir via after gas-liquid separator separates from the top perforated interval of gas injection well oil jacket annular space;
(5) when live wire is burned to a line producing well perforated interval downwards, original gas injection well changes flue gas reinjection well into, and a line producing well changes fireflood gas injection well into, from oil jacket annular space and the oil pipe injection of flue gas simultaneously of original gas injection well;
(6) from a line producing well oil pipe to continuous oil reservoir air injection, the deep fat that burning produces and the oil pipe of flue gas via two wires producing well, three line producing wells and more producing wells return ground, then from the oil jacket annular space of original gas injection well oil jacket annular space and oil pipe and a line producing well, flue gas is refilled oil reservoir; And by that analogy.
2. the method for combustion in situ exploitation monoclinal structure oil reservoir as claimed in claim 1, is characterized in that: the structure dip of monoclinal structure oil reservoir is more than or equal to 7 °.
3. the method for combustion in situ exploitation monoclinal structure oil reservoir as claimed in claim 1, is characterized in that: in step (1), at plane 50-500 rice apart between gas injection well and producing well, between producing well and producing well.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545274A (en) * | 2015-12-09 | 2016-05-04 | 中国石油天然气股份有限公司 | Well pattern and method for improving fire flooding effect of thick-layer heavy oil reservoir |
| CN106761638A (en) * | 2016-12-15 | 2017-05-31 | 中国石油天然气股份有限公司 | The fireflood of high dip angle heavy crude reservoir is driven with flue gas re-injection gravity and cooperates with recovery method |
| CN107435535A (en) * | 2016-05-26 | 2017-12-05 | 中国石油大学(北京) | A kind of method that exploitation high dip angle heavy crude reservoir is driven using plane gravity |
| CN113445984A (en) * | 2020-03-25 | 2021-09-28 | 中国石油天然气股份有限公司 | Fire flooding mining method for side water invasion heavy oil reservoir with stratum inclination angle |
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| US4436344A (en) * | 1981-05-20 | 1984-03-13 | Standard Oil Company (Indiana) | In situ retorting of oil shale with pulsed combustion |
| CN101122227A (en) * | 2007-09-30 | 2008-02-13 | 辽河石油勘探局 | Fire flooding oil extraction crude oil combustion-assistant ignition process |
| US20140041867A1 (en) * | 2012-08-07 | 2014-02-13 | John Belgrave | Enhanced oil recovery initiated with zero emission in-situ combustion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436344A (en) * | 1981-05-20 | 1984-03-13 | Standard Oil Company (Indiana) | In situ retorting of oil shale with pulsed combustion |
| CN101122227A (en) * | 2007-09-30 | 2008-02-13 | 辽河石油勘探局 | Fire flooding oil extraction crude oil combustion-assistant ignition process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545274A (en) * | 2015-12-09 | 2016-05-04 | 中国石油天然气股份有限公司 | Well pattern and method for improving fire flooding effect of thick-layer heavy oil reservoir |
| CN107435535A (en) * | 2016-05-26 | 2017-12-05 | 中国石油大学(北京) | A kind of method that exploitation high dip angle heavy crude reservoir is driven using plane gravity |
| CN107435535B (en) * | 2016-05-26 | 2019-10-11 | 中国石油大学(北京) | A method of exploitation high dip angle heavy crude reservoir is driven using plane gravity |
| CN106761638A (en) * | 2016-12-15 | 2017-05-31 | 中国石油天然气股份有限公司 | The fireflood of high dip angle heavy crude reservoir is driven with flue gas re-injection gravity and cooperates with recovery method |
| CN106761638B (en) * | 2016-12-15 | 2019-05-07 | 中国石油天然气股份有限公司 | The fireflood of high dip angle heavy crude reservoir cooperates with recovery method with the drive of flue gas re-injection gravity |
| CN113445984A (en) * | 2020-03-25 | 2021-09-28 | 中国石油天然气股份有限公司 | Fire flooding mining method for side water invasion heavy oil reservoir with stratum inclination angle |
| CN113445984B (en) * | 2020-03-25 | 2022-06-03 | 中国石油天然气股份有限公司 | Fire flooding mining method for side water invasion heavy oil reservoir with stratum inclination angle |
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