CN104533368B - Application and system of a kind of combustion in situ flue gas in oil reservoir exploitation - Google Patents
Application and system of a kind of combustion in situ flue gas in oil reservoir exploitation Download PDFInfo
- Publication number
- CN104533368B CN104533368B CN201410808239.1A CN201410808239A CN104533368B CN 104533368 B CN104533368 B CN 104533368B CN 201410808239 A CN201410808239 A CN 201410808239A CN 104533368 B CN104533368 B CN 104533368B
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- Prior art keywords
- injection
- flue gas
- combustion
- gas
- oil reservoir
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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
- 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 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
-
- 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
Abstract
The invention provides a kind of application of combustion in situ flue gas in oil reservoir exploitation and system, oil reservoir exploitation is the adjacent oil reservoir for the flue gas re-injection combustion in situ for producing combustion in situ, realizes oil reservoir flue gas flooding.The equipment at least includes one layer of fireflood oil reservoir and one layer of steam injection oil reservoir, flue gas underground re-injection system includes sleeve pipe (21), the gas injection perforated pipe (22) and oil recovery oil pipe (23) being set up in parallel in sleeve pipe, gas injection perforated pipe sets check valve (29) in the position relative to combustion in situ bottom, perforate (210) is set in the position relative to steam injection oil reservoir, and the oil recovery oil pipe sets gas-liquid separator (28) in the position relative to combustion in situ bottom.This invention ensures that flue gas is effectively utilized, floor treatment and re-injection flow are simplified.Effectively control flue gas steam injection target oil reservoir, it is ensured that production safety during air injection.Oil reservoir flue gas flooding improves recovery factor of heavy oil reservoir, lowers greenhouse gases and toxic gas discharge.
Description
Technical field
This method belongs to oil extraction in oil field technical field, more particularly to a kind of combustion in situ flue gas answering in oil reservoir exploitation
With and system, improve well yield, increase oil reservoir heat utilization rate, reduction flue gas improves heavy crude reservoir to atmosphere pollution
Recovery ratio and development effectiveness.
Background technology
Domestic thickened oil recovery is based on steam injection development, and a large amount of blocks are in poorly efficient mining phase at present.Combustion in situ skill
Art is recognized due to having the advantages that Pintsch process is modified, heating, viscosity reducing improves crude oil flow ability, the high and low power consumption of oil displacement efficiency
To be most potential substituted technique, current year oil-producing has reached 200,000 tons.Combustion in situ has burnt up in crude oil about 10% weight
Matter component, the side's oil of output 1 will will produce nitrogen, carbon dioxide, methane, sulphur in 1000~3000 side's flue gases, gas simultaneously
Change hydrogen proportion and exceed 99%.Wherein sour gas accelerates the corrosion of flow string and ground installation, while greenhouse gases
With the discharge of toxic gas, immense pressure is brought to oil field surrounding enviroment.
Current flue gas can on a large scale supplement the stratum energy for later stage deficit of handling up as a kind of good oil displacement agent
Amount, and have solubilising, viscosity reduction, intensifying distillation, expansion swept volume effect., can when flue gas and steam displacement are acted on simultaneously
The trend for involving scope, changing steam of enhancing steam, improves the purpose of Heavy Oil Thermal Recovery Effect.United States Patent (USP) US3675715A is public
Extraction and then under being entered by surface compressor re-injection in oil well at a kind of method of flue gas re-injection of cloth, extraction flue gas,
Realize underground flue gas drive.But the ground needs configuration High-Pressure Compressor and re-injection pipeline, oil-recovery operations cost is also corresponding
Improve, re-injection device in ground will occupy more ground spaces simultaneously.
This invention ensures that flue gas is effectively utilized, floor treatment and re-injection flow are simplified, combustion in situ is realized and adopts
Go out the separation of industry underground and underground flue gas re-injection.A kind of cigarette produced after combustion in situ rear pass gas Application way, combustion in situ
Road gas, by the adjacent oil reservoir of producing well re-injection, supplements the stratum energy and realizes the flue gas auxiliary displacement of reservoir oil on the spot.
The content of the invention
It is an object of the present invention to provide a kind of application of combustion in situ flue gas in oil reservoir exploitation；
Another object of the present invention is to provide a kind of method that utilization combustion in situ flue gas exploits oil reservoir；Present invention side
Method uses lower point of defeated technique of Oil/gas Well, realizes the re-injection on the spot of underground flue gas.Its re-injection mode ensure that effective profit of flue gas
With simplifying floor treatment and re-injection flow.Flue gas steam injection target oil reservoir can be effectively controlled, and ensure that air injection process
Middle production safety.Oil reservoir flue gas flooding improves recovery factor of heavy oil reservoir, lowers greenhouse gases and toxic gas discharge.
A further object of the present invention is to provide a kind of stratified deposit exploitation equipment；Equipment of the present invention is by flow string
Post, gas injection tube column, packer, the part of monitoring system four are constituted, and realize flue gas and the separation of Produced Liquid underground and re-injection on the spot.
For up to above-mentioned purpose, on the one hand, the invention provides a kind of application of combustion in situ flue gas in oil reservoir exploitation,
The oil reservoir exploitation is the adjacent oil reservoir that the flue gas for producing combustion in situ is recycled into combustion in situ by underground re-injection system,
Realize oil reservoir flue gas flooding.
According to application of the present invention, wherein it is preferred that the oil reservoir is stratified deposit, interlayer interlayer is developed；
It is described it is each layer by layer between closure it is good；Flue gas can not break through interlayer and rise to interlayer top.
According to application of the present invention, wherein it is preferred that the oil reservoir is heavy crude reservoir；
Wherein more preferably described oil reservoir is the heavy crude reservoir of 500-50000 centipoises.
According to application of the present invention, wherein it is preferred that the oil reservoir at least includes one layer of fireflood oil reservoir and one layer of steam injection
Oil reservoir.
Described steam injection oil reservoir is well known to those skilled in the art, and is for example steam soak or the oil of steam driving exploitation
Layer.
On the other hand, present invention also offers a kind of method that utilization fireflood oil reservoir flue gas exploits oil reservoir, the oil reservoir
For stratified deposit, wherein at least includes one layer of fireflood oil reservoir and one layer of steam injection oil reservoir, the oil and flue gas of combustion in situ extraction
It is defeated using two casing strings in producing well point；Modification oil is produced by sucker rod pump, and flue gas passes through independent underground gas injection pipe column re-injection
Steam injection oil reservoir；Wherein, operating pressure 1MPa more than of the combustion in situ oil recovery bottom pressure at least above steam injection oil reservoir.
According to method of the present invention, wherein, the present invention further preferably combustion in situ oil recovery bottom pressure is more than note
1~1.5MPa of operating pressure of steam oil reservoir.
Flue gas flooding can supplement later stage of handling up stratum energy in debt on a large scale, and have solubilising, viscosity reduction, reinforcing to steam
Evaporate, expand swept volume effect.When flue gas and steam displacement are acted on simultaneously, the individual well of steam injection oil reservoir producing well will be improved
Yield, improves Heavy Oil Thermal Recovery Effect.
According to method of the present invention, wherein it is preferred that layered reservoir layer wall is developed；It is described it is each layer by layer between seal
Closing property is good；
According to method of the present invention, wherein it is preferred that the oil reservoir is heavy crude reservoir；
Wherein it is more preferably the heavy crude reservoir of 500-50000 centipoises.
According to method of the present invention, the oil reservoir is using the exploitation of double-deck or multilayer well pattern；
According to method of the present invention, straight well well pattern preferably wherein uses or row pattern well at 5 points, anti-7 points, anti-9 points
Net.
Using under such a well pattern pattern, it is possible to achieve the injection of a bite well, the well pattern pattern of multiple wells extraction, can preferably it send out
Wave the effect of flue gas flooding.
According to method of the present invention, combustion in situ is adjacent oil reservoir with steam injection oil reservoir；
Wherein it is understood that when steam injection oil reservoir is located above combustion in situ, the more conducively abundant profit of flue gas
With.
Wherein if steam injection oil reservoir is located at below combustion in situ, it might even be possible to use pressuring method by flue gas re-injection
Into steam injection oil reservoir.
Wherein preferably the combustion in situ uses independent well pattern.
Wherein further preferably adjacent injection well and producing well are 50~200m well patterns.
Developed respectively with two sets of well patterns up and down, oil reservoir is developed using steam injection technology above interlayer, oil reservoir profit below interlayer
With baked wheaten cake technological development.
Baked wheaten cake gas injection well therein can routinely burn gas injection well according to prior art and be operated, for example can be empty for note
Gas straight well；
It is with 10000~40000m in a preferred embodiment of the invention by ground high pressure air injection pump3/ d speed
Air is injected to oil reservoir；
Wherein pressure is 4MPa after the acceptable preferably described combustion in situ injection air of the present invention.
Wherein flue gas re-injection steam injection oil reservoir can be operated for the conventional re-injection of prior art, for example flue gas passes through
Burn the direct re-injection of producing well and enter oil reservoir；To realize the flue gas flooding for continuing steam injection oil reservoir, combustion in situ oil recovery bottom pressure
At least above more than the operating pressure 1MPa of steam injection oil reservoir, to maintain enough pressure differences, it is ensured that flue gas smoothly injects steaming
Vapour exploits oil reservoir；
Specifically for example can be defeated using two casing strings point by oil and flue gas；Modification oil is produced by sucker rod pump, flue gas
Independent gas injection tube column re-injection steam injection oil reservoir can be passed through；
The producing well of the wherein present invention further preferably combustion in situ uses separating treatment technique under Oil/gas Well, utilizes two casing strings
Divide defeated, the sucker rod pump extraction liquid of resistance to 200 DEG C of high temperature, flue gas is directly injected into adjacent oil reservoir by another casing string.
The wherein present invention stops the producing well production liquid when further preferably well head monitors that output oxygen content gas is increased to 6%
With flue gas re-injection.
When live wire has been reached near producing well, well head monitors that output oxygen content gas can be gradually increased to 6% police
Line is guarded against, to ensure production safety and avoiding air re-injection, stops producing well production liquid and flue gas re-injection.
Another aspect, the present invention have also been devised a kind of combustion in situ flue gas underground re-injection system, the combustion in situ cigarette
Re-injection system includes oil recovery oil pipe 23, the gas injection perforated pipe of underground flue gas re-injection set in sleeve pipe 21, sleeve pipe under road gas well
22nd, prevent flue gas from spilling into the packer 24 and monitoring system 26 of earth's surface and combustion in situ from steam injection layer；The gas injection is beaten
Hole pipe 22 and oil recovery oil pipe 23 be arranged in parallel；23 set gas-liquid separation in the position relative to combustion in situ bottom in oil recovery oil pipe
Device 28 and sucker rod pump 27；The setting perforate 210 in position at the bottom 1/3 relative to steam injection oil reservoir of gas injection perforated pipe 22, and
Position relative to combustion in situ sets control flue gas into the valve 29 of gas injection perforated pipe.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is understood that existing in sleeve pipe
, should be in target oil layer section formation perforated zone 10 after being placed in oil reservoir.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is preferred that in steam injection in described sleeve pipe
Exploit oil reservoir upper and lower part and packer 24 is set.It can so prevent flue gas from missing to other layers of position (to be overflow from steam injection layer
Go out to earth's surface, or combustion in situ spilt into from steam injection layer), and prevent the Produced Liquid recharge of combustion in situ 7 to steam injection oil reservoir
2。
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is preferred that the valve 29 is unidirectional
Valve；
Wherein described check valve can control flue gas to enter re-injection tubing string.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein can also the preferred check valve 29
Steam injection perforated pipe 22 is set relative to the position at the 1m of combustion in situ bottom.
According to combustion in situ flue gas underground re-injection system of the present invention, the gas-liquid separator 28 is arranged on oil recovery
The bottom of oil pipe 23, the external diameter of gas separator 28 is equal to the external diameter of oil recovery oil pipe 23.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is preferred that being set in the gas injection perforated pipe
Put gas flowmeter 25.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is preferred that also setting up temperature in described sleeve pipe
Pressure tester 26.
Wherein preferably the temperature and pressure tester is arranged on production layer position bottom.
According to combustion in situ flue gas underground re-injection system of the present invention, wherein it is preferred that being set in the oil recovery oil pipe
Sucker rod pump 27.
The sucker rod pump of the present invention can be any sucker rod pump of prior art, and currently preferred is gas-tight and sand-preventing pump,
Air-liquid, the underground separation of sand can be carried out, play and eliminate or mitigate gas and the influence shaked out to oil well pump, improve pump efficiency and
The effect of pumping efficiency.
In summary, the invention provides a kind of combustion in situ flue gas oil reservoir exploitation in application and system.This hair
Bright technical scheme has the following advantages that：
1) production effect is good：The present invention sets the defeated tubing string of underground gas-liquid point, and realizing extraction flue gas, re-injection is adjacent on the spot
Oil reservoir, supplement flue gas adds stratum energy, while flue gas gas drive auxiliary steam is produced, solubilization, viscosity reduction, reinforcing are steamed
Evaporate effect obvious, improve oil output per well；
2) it is environment-friendly：Atmospheric carbon dioxide re-injection on the spot is produced after combustion in situ, greenhouse gas emission is reduced.Have simultaneously
Poisonous gas sulfur dioxide reinjection into reservoir, ground air quality is obviously improved；
3) flue gas re-injection system is safely controllable：Flue gas re-injection tubing string bottom is provided with check valve, can according to production and
Re-injection system is closed in security needs；
4) cost is reduced：Sour gas is reduced to tube corrosion, the increase of flow string service life.There is poison gas simultaneously
The re-injection on the spot of body sulfur dioxide, its content is substantially reduced after filtration underground absorption, reduces ground desulfurizing device input.This hair
Bright utilization stratum self-energy, without floor treatment and ground re-injection system, there is safety, energy-saving and environmental protection.
Brief description of the drawings
Fig. 1, combustion in situ flue gas re-injection method schematic diagram；
Fig. 2, new combustion in situ flue gas re-injection system schematic diagram；
In Fig. 1：1 burns gas injection straight well, 2 steam technologies exploitation oil reservoir (steam injection oil reservoir), 3 interlayers, 4 baked wheaten cake burned regions, 5
Band, 7 baked wheaten cake technologies exploitation oil reservoir (combustion in situ), 8 baked wheaten cake producing wells, 9 flue gases are burnt in producing well (handle up or steam drives), 6
Drive region, 10 perforated zones.
In Fig. 2：2 steam technologies exploitation oil reservoir (steam injection oil reservoir), 7 burn technologies exploitation oil reservoirs (combustion in situ), 3 every
There is bar layer, 21 sleeve pipes, 22 gas injection perforated pipes, 23 oil recovery oil pipes, 24 packers, 25 gas flowmeters, 26 temperature and pressure testers, 27
Pump, 28 gas-liquid separators, 29 check valves, 210 perforates, 10 perforated zones.
Embodiment
The beneficial effect for describing the implementation process of the present invention in detail below by way of specific embodiment and producing, it is intended to which help is read
Reader more fully understand the present invention essence and feature, not as to this case can practical range restriction.
Embodiment 1
1 pair of combustion in situ flue gas re-injection method of the present invention is described in detail below in conjunction with the accompanying drawings.The He of oil reservoir 2 in figure
7 be two sets of independent well patterns by 3 points of interlayer, and interlayer closure is good, and flue gas can not break through interlayer and rise to interlayer top.Divide up and down
Do not developed with two sets of well patterns, oil reservoir is developed using steam injection technology above interlayer, oil reservoir utilizes and burns technological development below interlayer.
It is air injection straight well to burn gas injection straight well 1, by ground high pressure air injection pump with 10000~40000m3/ d speed is to the note of oil reservoir 7
Enter air.Pressure is 4MPa after the injection air of oil reservoir 7, and combustion zone 6 is pushed away with daily 3~10cm/d speed to producing well 8 is burnt
Enter, the rear of combustion zone 6 is close to 0 to burn residual oil saturation in burned region, area.Combustion in situ has been burnt up about 10% in crude oil
Heavy component, the side's oil of output 1 will will produce 1000~3000 side's flue gases, nitrogen, carbon dioxide, first in gas simultaneously
Alkane, hydrogen sulfide proportion have exceeded 99%.Modification oil and flue gas realize that gas-liquid point is defeated in baked wheaten cake producing well shaft bottom, modification
Oil is produced by sucker rod pump, and flue gas enters oil reservoir 2 (specific re-injection tubular column structure is shown in figure by burning the direct re-injection of producing well 8
2), the near wellbore zone of producing well 8 produces flue gas region 9.It can be exploited in oil reservoir 2 in the way of steam soak or steam drive, it is raw
During production, the stratum average pressure of oil reservoir 2 is less than the 1~1.5MPa of average pressure of oil reservoir 7, and reasonable operation pressure limit is conducive to oil
Flue gas is injected into oil reservoir 2 in layer 7, and prevents that Liquid return filling is into oil reservoir 7 in oil reservoir 2.Flue gas flooding can be extensive simultaneously
The stratum energy for later stage deficit of handling up is supplemented, and has solubilising, viscosity reduction, intensifying distillation, expansion swept volume effect.Work as flue gas
When being acted on steam displacement simultaneously, the well yield of the inner producing well of oil reservoir 2 will be improved, improve Heavy Oil Thermal Recovery Effect.
2 pairs of combustion in situ rear pass gas re-injection systems of the present invention are described in detail below in conjunction with the accompanying drawings.Re-injection is produced
Well is made up of oil recovery oil pipe 23, gas injection perforated pipe 22, packer 24, monitoring system (temperature and pressure tester) four parts.First in set
Pipe 21 is in target oil layer section perforation, and the oil that recovers the oil can be entered by sleeve pipe 21 by forming baked wheaten cake modification oil in perforated zone 10, oil reservoir 7
Pipe 23, extraction flue qi leel transports to gas injection perforated pipe 22 subsequently into oil reservoir 2.Oil recovery oil pipe 23 is rotproofness oil pipe, gas-liquid point
The bottom of oil recovery oil pipe 23 is arranged on from device 28, the external diameter of gas separator 28 is equal to the external diameter of oil recovery oil pipe 23, vapour liquid separator
28 tops are equipped with the sucker rod pump 27 for high-temp liquid output.Oil is lifted to ground by sucker rod pump (gas prevention pump) 27, and sucker rod pump can
Resistance to 200 DEG C of high temperature, bottom installs underground gas-liquid separator 28 and realizes underground gas-liquid separation, improves the act of high gas-liquid ratio producing well
Rise efficiency.Gas injection perforated pipe 22 is provided with flue gas flow passage in the depth segment of target oil reservoir 2, and bottom is to be provided with control flue gas
Into the check valve 29 of re-injection tubing string, when needing to stop flue gas re-injection operation, check valve 29 can be closed.Gas injection perforated pipe 22
Interior to be provided with gas flowmeter 25, flue gas re-injection speed conveys ground by signal acquiring system.To make flue gas effectively enter
Enter oil reservoir 2, packer 24 is respectively arranged in the upper and lower part of steam injection oil reservoir 2, prevent gas loss to other layers of position, and prevent
Baked wheaten cake technology exploits the Produced Liquid recharge of oil reservoir 7 to steam injection oil reservoir, and packer 24 was left for leading to that temperature and pressure signal cable is passed through
Road.Temperature, pressure change in the monitoring pit shaft of temperature and pressure tester 26, when monitoring that burning leading edge will be advanced near producing well,
Stop the extraction of modification oil and flue gas re-injection operation in good time.
Claims (6)
1. a kind of combustion in situ flue gas underground re-injection system, it is characterised in that the combustion in situ flue gas underground re-injection system
System includes the oil recovery oil pipe (23) of setting in sleeve pipe (21), sleeve pipe, the gas injection perforated pipe (22) of underground flue gas re-injection, prevents cigarette
Road gas is missed to the packer of other layers of position (24) and monitoring system (26)；The gas injection perforated pipe (22) and oil recovery oil pipe (23)
It is arranged in parallel；The inherent position relative to combustion in situ bottom of oil recovery oil pipe (23) sets gas-liquid separator (28) and sucker rod pump
(27)；Gas injection perforated pipe (22) at the bottom 1/3 relative to steam injection oil reservoir position set perforate (210), and relative to
The position of combustion in situ sets control flue gas into the valve (29) of gas injection perforated pipe.
2. combustion in situ flue gas underground re-injection system according to claim 1, it is characterised in that the valve (29) is
Check valve.
3. combustion in situ flue gas underground re-injection system according to claim 1, it is characterised in that set in steam injection perforated pipe
It is equipped with the gas flowmeter (25) for gas-monitoring.
4. combustion in situ flue gas underground re-injection system according to claim 1, it is characterised in that the gas-liquid separator
(28) oil recovery oil pipe (23) bottom is arranged on, the external diameter of gas separator (28) is equal to the external diameter of oil recovery oil pipe (23).
5. combustion in situ flue gas underground re-injection system according to claim 2, it is characterised in that the check valve (29)
Steam injection perforated pipe (22) is set relative to the position at the 1m of combustion in situ bottom.
6. combustion in situ flue gas underground re-injection system according to claim 1, it is characterised in that the packer (24)
It is respectively arranged in steam injection oil reservoir (2) upper and lower part.
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| CN201410808239.1A CN104533368B (en) | 2014-12-22 | 2014-12-22 | Application and system of a kind of combustion in situ flue gas in oil reservoir exploitation |
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| CN201410808239.1A CN104533368B (en) | 2014-12-22 | 2014-12-22 | Application and system of a kind of combustion in situ flue gas in oil reservoir exploitation |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368662B (en) * | 2015-07-23 | 2019-04-09 | 中国石油天然气股份有限公司 | The evaluation method of recovery ratio |
| CN106499371A (en) * | 2015-09-06 | 2017-03-15 | 中国石油天然气股份有限公司 | A kind of standing column well gas injection improves the method and device of Condensate Gas Reservoir recovery ratio |
| CN107339089A (en) * | 2017-09-13 | 2017-11-10 | 北京军秀咨询有限公司 | A kind of combustion in situ slug adds the method that steam drives combined type crude oil producing |
| CN107965304A (en) * | 2018-01-20 | 2018-04-27 | 西安石油大学 | A kind of method to exploiting multilayer heavy crude reservoir to fireflood |
| CN113833444B (en) * | 2020-06-23 | 2023-08-22 | 中国石油天然气股份有限公司 | Fire exploitation method of thin layer and deep layer original heavy oil reservoir |
| CN113944450A (en) * | 2020-07-15 | 2022-01-18 | 中国石油化工股份有限公司 | Oil extraction method for single-layer fire flooding and multi-layer heating production of multi-layer heavy oil reservoir |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113666A (en) * | 2007-09-04 | 2008-01-30 | 新奥能源研究院有限公司 | Coal bed gas mining novel technology |
| CN101988383A (en) * | 2010-08-31 | 2011-03-23 | 新奥科技发展有限公司 | Method for carrying out in-situ dry distillation on underground coal bed by utilizing flue gas |
| CN103590795A (en) * | 2013-10-16 | 2014-02-19 | 大连理工大学 | Method for integrating natural gas recovery efficiency increasing through CO2 waste gas reinjection with CO2 geological storage |
| CN103912252A (en) * | 2014-03-13 | 2014-07-09 | 中国石油大学(北京) | Wet type combustion huff-puff oil extraction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140041867A1 (en) * | 2012-08-07 | 2014-02-13 | John Belgrave | Enhanced oil recovery initiated with zero emission in-situ combustion |
-
2014
- 2014-12-22 CN CN201410808239.1A patent/CN104533368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113666A (en) * | 2007-09-04 | 2008-01-30 | 新奥能源研究院有限公司 | Coal bed gas mining novel technology |
| CN101988383A (en) * | 2010-08-31 | 2011-03-23 | 新奥科技发展有限公司 | Method for carrying out in-situ dry distillation on underground coal bed by utilizing flue gas |
| CN103590795A (en) * | 2013-10-16 | 2014-02-19 | 大连理工大学 | Method for integrating natural gas recovery efficiency increasing through CO2 waste gas reinjection with CO2 geological storage |
| CN103912252A (en) * | 2014-03-13 | 2014-07-09 | 中国石油大学(北京) | Wet type combustion huff-puff oil extraction method |
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