CN109973062A - A kind of five or three slug system of note of optimization - Google Patents
A kind of five or three slug system of note of optimization Download PDFInfo
- Publication number
- CN109973062A CN109973062A CN201711464626.8A CN201711464626A CN109973062A CN 109973062 A CN109973062 A CN 109973062A CN 201711464626 A CN201711464626 A CN 201711464626A CN 109973062 A CN109973062 A CN 109973062A
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- rectangular
- slug
- holding unit
- oil
- simulation
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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
Abstract
The invention proposes a kind of five or the three slug systems of note of optimization, belong to oil field depth transfer drive displacement of reservoir oil field of engineering technology.The structure that the note slug system uses more granular systems and gel rubber system to combine, suitable for the depth profile control displacement of reservoir oil field of oil field.Have the characteristics that recovery ratio increment is high.
Description
Technical field
The present invention relates to a kind of five or three slug Technologies of oil field note of optimization, belong to oil field displacement of reservoir oil field of engineering technology.
Background technique
Oil field at home is substantially single using granular system (such as pitch particle, polyacrylamide particle, emulsification at present
Grain CDG etc.) or gel rubber system (chromium ion PAM system, compound ion PAM system etc.) or Polymer Systems (PAM polymeric acceptor
System, three-component compound system etc.) the depth profile control displacement of reservoir oil is carried out, but the obstruction water effect that the above-mentioned each system of single application has is poor,
The disadvantages such as oil recovery efficiency is low.
Summary of the invention
The present invention is poor in order to solve unitary system depth profile control obstruction water effect in the prior art, and oil recovery effect is bad to be lacked
It falls into, proposes a kind of five or three slug system of note using the rectangular double-deck artificial core, the technical solution taken is as follows:
A kind of five or three slug system of oil well note of optimization, the volume of the note slug system are on the double-deck artificial rectangular rock core
A quarter volume (a quarter of the live transfer drive radius of simulation between well and oil well of portion's high permeability zone pore volume
Well spacing), the double-deck artificial rectangular core permeability in indoor logistics organizations: 100md/400md；The note slug system includes five
Segment body, each segment body further includes three micro- segment bodies in five segment bodies；Three micro- segment bodies are respectively as follows: coagulant liquid section
Cock body, suspended particulate slug body and water slug body combine, and the volume ratio of three micro- segment bodies is 1:1:1, and；Described three
The sum of volume of a micro- segment body is 1/5th of segment body total volume where it.
Further, the coagulant liquid slug body infuses slug system using JLJ-2 multiple crosslinking agent；The suspended particulate section
Cock body uses sludge suspension granular system；The water slug body is using simulation water.Wherein, simulation water refers to the separation of oil field mining liquid
Water (i.e. oil-water mixture isolate water), the simulation water meets formation condition.
Further, concentration of suspended particles is 3.5% in the suspended particulate slug body.
Further, the design of the note slug system is as follows:
Step 1: according to the ratio of 1/4 well spacing shared by the double-deck artificial rectangular rock core length and note slug radius and combination
Infuse slug depth: V=[(face area ÷ 2) × rectangular rock core length × 0.25] ÷ 4, obtain note slug total volume；
Step 2: make rectangular rock core saturation simulation water using the double-deck artificial rectangular rock core displacement device；
Step 3: make rectangular rock core saturation simulation oil using the double-deck artificial rectangular rock core displacement device；
Step 4: being laid flat the core holding unit of the double-deck artificial rectangular rock core displacement device, with simulation water drive for double-deck artificial
The core column of rectangular rock core in the graduated pipette of outlet port of rock core holder tape splicing, and measures grease in Produced Liquid
Ratio；Water drive is completed when outlet end moisture content is to 90% or more, the best opportunity driven at this time for note slug system；
Step 5: the gel note slug system of first segment body in five segment bodies, clay suspended particulate are infused into section
The pipeline of the double-deck artificial rectangular rock core displacement device is added in cock body system and water slug body, and with constant-flux pump with the stream of 1ml/min
Speed drives in core holding unit, drives 5min 3s (3 seconds five minutes) and stops afterwards, during which records pressure change；
Step 6: after three days, repeat step 5, until complete the 5th segment body displacement, after three days, with constant-flux pump with
The flow velocity of 1ml/min carries out simulation water drive rock core Crude Oil, and displacement is oil-free to rock core outlet section, and recording step five and step 6 are driven
Simulation oil total volume V out2, recovery ratio increment=(V2-V1)÷V0.Above-mentioned bath temperature is all 40 DEG C.
Indoor Logistics automatic system preparation is as follows:
Further, the rectangular rock heterogeneous core driving device includes manual pump 1, manual pump 22, rectangular rock core
Clamper 3, measuring cup 4, membrane vessel 5, pipeline valve 1, pipeline valve 27, pipeline valve 38 and insulating box 9；It is described manual
22 pumping hole end is pumped to be connected by pipeline with the side wall entrance end of the rectangular core holding unit 3；The rectangular core holding unit
3 bottom end suction inlet is set in the cup body of the measuring cup 4；The top inlet of the rectangular core holding unit 3 passes through pipeline and institute
The arrival end for stating membrane vessel 5 is connected；The top inlet of the rectangular core holding unit 3 passes through pipeline and the manual pump 1
Pumping hole end be connected；5 bottom nozzle of membrane vessel is connected by pipeline with the pumping hole end of the manual pump 1；In the institute
It states the pipeline that the top inlet of rectangular core holding unit 3 is connected with the arrival end of the membrane vessel 5 and is equipped with pipeline valve one
6；Pipeline is equipped on the pipeline that the top inlet of the rectangular core holding unit 3 is connected with the pumping hole end of the manual pump 1
Valve 38；Pipeline valve is equipped on the pipeline that 5 bottom nozzle of membrane vessel is connected with the pumping hole end of the manual pump 1
38；The rectangular core holding unit 3, measuring cup 4, membrane vessel 5, pipeline valve 1, pipeline valve 27, pipeline valve 38 are equal
In insulating box 9.
Further, the detailed process of rectangular bilayer artificial core saturation simulation water described in step 2 are as follows: in 40 DEG C of temperature
Under degree, rectangular core holding unit 3 is placed, and close pipeline valve 1 and pipeline valve 27 vertically, open pipeline valve three
8, it is that rectangular core holding unit 3 provides the ring pressure of 2Mpa, then is mentioned with manual pump 1 for rectangular core holding unit 3 with manual pump 22
For a small amount of negative pressure, the air in rectangular core holding unit 3 is extracted out slowly, is formed inside the rectangular core holding unit 3
Negative pressure by the simulation water in measuring cup being pumped into rectangular core holding unit 3 slowly, make rectangular in rectangular core holding unit 3
Rock core saturation simulation water.
Further, the detailed process of rectangular rock core saturation simulation oil described in step 3 are as follows: by simulation oil be packed into it is described every
In film container 5, open pipeline valve 1 and pipeline valve 27, close pipeline valve 38, described in one 1 displacement of manual pump every
The simulation oil of film container 5 makes simulation oil from top to bottom slowly full of the rock core being located in rectangular core holding unit 3, the side of being driven to
The outlet end of shape core holding unit 3 is anhydrous；Rectangular core holding unit 3 after saturation simulation water is placed in 40 DEG C of insulating box,
To guarantee that simulation oil has certain mobility, the displacement simulation water of simulation oil is carried out under the pressure of 0.2MPa, and every five points
Primary its of time observation of clock displaces whether liquid has grease layering, when grease layering can not be observed by displacing liquid, then
Assert that simulation oil is fully saturated, and records and drive in simulation oil volume V0.The rock core can do the experiment of next step water drive or note slug
Experiment.
Further, the rectangular double-deck artificial core for being saturated simulation oil by above-mentioned condition is used in combination in above equipment
Constant-flux pump drives in simulation water with the flow velocity of 1ml/min, be driven to it is oil-free, then record displace total water drive go out simulate oil volume V1
Further, the preparation process of simulation oil described in step 3 is as follows:
Step 1: heating crude oil is spare to 40 DEG C；
Step 2: kerosene is added in Xiang Suoshu crude oil according to live viscosity of crude data, rotated after mixing with six speed
Viscosity meter simulate oil viscosity be 7.8mPa.s to get arrive required simulation oil；
Step 3: being put into spare in closed container after simulation oil is prepared.
The invention has the advantages that:
Note slug system proposed by the present invention is made by the compound obstruction that compound a variety of note slug systems increase note slug
With the blocking action avoided is single, increases oil displacement efficiency；Meanwhile passing through the design and segment body ratio to note slug segment body structure
The design of example effectively reduces the weak problem of single note slug blocked force in segment body, realizes the blocked force of optimum degree water,
Under this ratio, note slug is just right for the resistance of water, and the blockage effect for realizing water is best, and recovery ratio effect is best,
Meanwhile note slug system proposed by the present invention can make recovery ratio increment reach 17.5%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rectangular double-deck artificial core driving device of the present invention.
Fig. 2 is the rectangular double-deck artificial core structural schematic diagram.
Specific embodiment
The present invention will be further described combined with specific embodiments below, but the present invention should not be limited by the examples.
Embodiment 1:
A kind of five slug system of note of optimization, the volume of the note slug system are that the double-deck artificial rectangular rock core top is hypertonic
The one third volume (one third well spacing of the live transfer drive radius of simulation between well and oil well) of permeable layers pore volume,
Permeability: 100md/400md；The note slug system includes five segment bodies, and each segment body also wraps in five segment bodies
Include three micro- segment bodies；Three micro- segment bodies are respectively as follows: coagulant liquid slug body, suspended particulate slug body is mutually tied with water slug body
It closes, the volume ratio of three micro- segment bodies is 1:1:1, and；It is total that the sum of the volume of three micro- segment bodies is infused segment body by it
/ 5th of volume.The artificial rectangular rock core of bilayer uses rectangular cubic structure, and it includes the upper and lower two
Part, wherein a length of 30.3cm of the artificial rectangular rock core of bilayer；The rectangular end face size of the artificial rectangular rock core of bilayer
Thickness for 4.5cm × 4.5cm, the upper and lower is identical.
The coagulant liquid slug body meets crosslinking agent note slug system using JLJ-2；The suspended particulate slug body uses
Sludge suspension granular system；The water slug body is using simulation water.Concentration of suspended particles is in the suspended particulate slug body
3.5%.
The coagulant liquid slug body meets crosslinking agent note slug system using JLJ-2；The water slug body is using simulation water.
Wherein, simulation water refers to the separation water (i.e. oil-water mixture isolate water) of oil field mining liquid, and the simulation water meets stratum item
Part.
The design of the note slug system is as follows:
Step 1: according to the ratio of 1/4 well spacing shared by the double-deck artificial rectangular rock core length and note slug radius and combination
Infuse slug depth: V=[(face area ÷ 2) × rectangular rock core length × 0.25] ÷ 4, obtain the volume V of note slug；
Step 2: make rectangular rock core saturation simulation water using the double-deck artificial rectangular rock core displacement device；
Step 3: make rectangular rock core saturation simulation oil using the double-deck artificial rectangular rock core displacement device；
Step 4: being laid flat the core holding unit of the double-deck artificial rectangular rock core displacement device, with simulation water drive for double-deck artificial
The core column of rectangular rock core in the graduated pipette of outlet port of rock core holder tape splicing, and measures grease in Produced Liquid
Ratio；Water drive is completed when outlet end moisture content is to 90% or more, the best opportunity driven at this time for note slug system；
Step 5: the gel note slug system of first segment body in five segment bodies, clay suspended particulate are infused into section
The pipeline of the double-deck artificial rectangular rock core displacement device is added in cock body system and water slug body, and with constant-flux pump with the stream of 1ml/min
Speed drives in core holding unit, drives 5min 3s (3 seconds five minutes) and stops afterwards, during which records pressure change；
Step 6: after three days, repeat step 5, until complete the 5th segment body displacement, after three days, with constant-flux pump with
The flow velocity of 1ml/min carries out simulation water drive rock core Crude Oil, and displacement is oil-free to rock core outlet section, and recording step four to step 6 drives
Simulation oil total volume V out2, recovery ratio increment=(V2-V1)÷V0× 100%.
The detailed process of rectangular bilayer artificial core saturation simulation water described in step 2 are as follows: 40 DEG C at a temperature of, will be square
Shape core holding unit 3 is placed vertically, and closes pipeline valve 1 and pipeline valve 27, is opened pipeline valve 38, is used manual pump
22 provide the ring pressure of 2Mpa for rectangular core holding unit 3, then provide a small amount of bear with manual pump 1 for rectangular core holding unit 3
Pressure slowly extracts the air in rectangular core holding unit 3 out, and the negative pressure formed inside the rectangular core holding unit 3 will be measured
Simulation water being pumped into rectangular core holding unit 3 slowly in cup makes the rectangular rock core saturation mould in rectangular core holding unit 3
Quasi- water.
The detailed process of rectangular rock core saturation simulation oil described in step 3 are as follows: simulation oil is fitted into the membrane vessel 5,
Pipeline valve 1 and pipeline valve 27 are opened, pipeline valve 38, the mould of the membrane vessel 5 described in one 1 displacement of manual pump are closed
Quasi- oil makes simulation oil slowly full of the rock core being located in rectangular core holding unit 3, be driven to rectangular core holding unit from top to bottom
3 outlet end is anhydrous；Rectangular core holding unit 3 after saturation simulation water is placed in 40 DEG C of insulating box, to guarantee simulation oil
There is certain mobility, the displacement simulation water of simulation oil is carried out under the pressure of 0.2MPa, and observed every five minutes time
Primary its displaces whether liquid has grease layering, when grease layering can not be observed by displacing liquid, has then assert simulation oil
It is fully saturated, and record and drive in simulation oil volume V0.The rock core can do the experiment of next step water drive or note slug experiment.
The rectangular double-deck artificial core of simulation oil will be saturated by above-mentioned condition, in above equipment, and with constant-flux pump with
The flow velocity of 1ml/min drives in simulation water, be driven to it is oil-free, then record displace total water drive go out simulate oil volume V1
The preparation process of simulation oil described in step 3 is as follows:
Step 1: heating crude oil is spare to 40 DEG C；
Step 2: kerosene is added in Xiang Suoshu crude oil according to live viscosity of crude data, rotated after mixing with six speed
Viscosity meter simulate oil viscosity be 7.8mPa.s to get arrive required simulation oil；
Step 3: being put into spare in closed container after simulation oil is prepared.
The rectangular rock heterogeneous core driving device include manual pump 1, manual pump 22, rectangular core holding unit 3,
Measuring cup 4, membrane vessel 5, pipeline valve 1, pipeline valve 27, pipeline valve 38 and insulating box 9；The manual pump 22
Pumping hole end is connected by pipeline with the side wall entrance end of the rectangular core holding unit 3；The bottom end of the rectangular core holding unit 3
Suction inlet is set in the cup body of the measuring cup 4；The top inlet of the rectangular core holding unit 3 is held by pipeline and the diaphragm
The arrival end of device 5 is connected；The top inlet of the rectangular core holding unit 3 passes through the pumping hole end of pipeline and the manual pump 1
It is connected；5 bottom nozzle of membrane vessel is connected by pipeline with the pumping hole end of the manual pump 1；In the rectangular rock
The pipeline that the top inlet of heart clamp holder 3 is connected with the arrival end of the membrane vessel 5 is equipped with pipeline valve 1；Described
The pipeline that the top inlet of rectangular core holding unit 3 is connected with the pumping hole end of the manual pump 1 is equipped with pipeline valve 38；
Pipeline valve 38 is equipped on the pipeline that 5 bottom nozzle of membrane vessel is connected with the pumping hole end of the manual pump 1；It is described
Rectangular core holding unit 3, measuring cup 4, membrane vessel 5, pipeline valve 1, pipeline valve 27, pipeline valve 38 are set to constant temperature
In case 9.
Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the invention, any to be familiar with this
The people of technology can do various changes and modification, therefore protection of the invention without departing from the spirit and scope of the present invention
Range should subject to the definition of the claims.
Claims (9)
1. a kind of five or the three slug system of oil well note of optimization, which is characterized in that the volume of the slug system is the double-deck artificial side
The one third volume of shape rock core top high permeability zone pore volume；The artificial rectangular core permeability of bilayer: 100md/
400md；The note slug system includes five segment bodies, and each segment body further includes three micro- segment bodies in five segment bodies；
Three micro- segment bodies are respectively as follows: coagulant liquid slug body, suspended particulate slug body and water slug body and combine, and described three micro- section
The volume ratio of body is 1:1:1, and；The sum of volume of three micro- segment bodies is 1/5th of segment body total volume where it.
2. slug system according to claim 1, which is characterized in that the coagulant liquid slug body uses JLJ-2 composite crosslinking
Slug system is infused in agent；The suspended particulate slug body uses sludge suspension granular system；The water slug body is using simulation water.
3. slug system according to claim 2, which is characterized in that concentration of suspended particles is in the suspended particulate slug body
3.5%.
4. slug system according to claim 1, which is characterized in that the coagulant liquid slug body meets crosslinking using JLJ-2
Slug system is infused in agent；The water slug body is using simulation water.
5. slug system according to claim 1, which is characterized in that experimental temperature is 40 DEG C in object mould insulating box, the note
The design of slug system is as follows:
Step 1: according to the ratio of 1/4 well spacing shared by the double-deck artificial rectangular rock core length and note slug radius and note section is combined
Fill in depth model: V=[(face area ÷ 2) × rectangular rock core length × 0.25] ÷, 4, obtain note slug total volume；
Step 2: make rectangular rock core saturation simulation water using the double-deck artificial rectangular rock core displacement device；
Step 3: make rectangular rock core saturation simulation oil using the double-deck artificial rectangular rock core displacement device；
Step 4: being laid flat the core holding unit of the double-deck artificial rectangular rock core displacement device, with simulation water drive for double-deck artificial rectangular
The core column of rock core in the graduated pipette of outlet port of rock core holder tape splicing, and measures oil-water ratio in Produced Liquid；
Water drive is completed when outlet end moisture content is to 90% or more, the best opportunity driven at this time for note slug system；
Step 5: the gel note slug system of first segment body in five segment bodies, clay suspended particulate are infused into slug body
The pipeline of the double-deck artificial rectangular rock core displacement device is added in system and water slug body, and is driven with constant-flux pump with the flow velocity of 1ml/min
Enter in core holding unit, drives 5min 3s (3 seconds five minutes) and stop afterwards, during which record pressure change；
Step 6: after three days, repeating step 5, until the displacement of the 5th segment body is completed, after three days, with constant-flux pump with 1ml/
The flow velocity of min carries out simulation water drive rock core Crude Oil, and displacement is oil-free to rock core outlet section, and recording step five and step 6 displace mould
Quasi- oil total volume V2, recovery ratio increment=(V2-V1)÷V0× 100%.Above-mentioned bath temperature is all 40 DEG C.
6. slug system according to claim 5, which is characterized in that the rectangular artificial core driving device includes manual pump
One (1), manual pump two (2), rectangular core holding unit (3), measuring cup (4), membrane vessel (5), pipeline valve one (6), line valve
Two (7) of door, pipeline valve three (8) and insulating box (9)；The pumping hole end of the manual pump two (2) passes through pipeline and the rectangular rock
The side wall entrance end of heart clamp holder (3) is connected；The bottom end suction inlet of the rectangular core holding unit (3) is set to the measuring cup (4)
Cup body in；The top inlet of the rectangular core holding unit (3) passes through the arrival end phase of pipeline and the membrane vessel (5)
Even；The top inlet of the rectangular core holding unit (3) is connected by pipeline with the pumping hole end of the manual pump one (1)；It is described
Membrane vessel (5) bottom nozzle is connected by pipeline with the pumping hole end of the manual pump one (1)；In the rectangular core holding unit
(3) pipeline that top inlet is connected with the arrival end of the membrane vessel (5) is equipped with pipeline valve one (6)；In the side
The pipeline that the top inlet of shape core holding unit (3) is connected with the pumping hole end of the manual pump one (1) is equipped with pipeline valve three
(8)；Pipeline valve is equipped on the pipeline that the membrane vessel (5) bottom nozzle is connected with the pumping hole end of the manual pump one (1)
Three (8)；The rectangular core holding unit (3), measuring cup (4), membrane vessel (5), pipeline valve one (6), pipeline valve two (7),
Pipeline valve three (8) is set in insulating box (9).
7. slug system according to claim 7, which is characterized in that rectangular rock core saturation simulation water is specific described in step 2
Process are as follows: 50 DEG C at a temperature of, rectangular core holding unit (3) is placed vertically, and closes pipeline valve one (6) and line valve
Two (7) of door, are opened pipeline valve three (8), are that rectangular core holding unit (3) provide the ring pressure of 2Mpa, then use with manual pump two (2)
Manual pump one (1) is that rectangular core holding unit (3) provide negative pressure, slowly extracts the air in rectangular core holding unit (3) out,
The negative pressure formed inside the rectangular core holding unit (3) by the simulation water in measuring cup slowly be pumped into rectangular core holding unit
(3) in, make the rectangular rock core saturation simulation water in rectangular core holding unit (3).
8. slug system according to claim 7, which is characterized in that rectangular rock core saturation simulation oil is specific described in step 3
Process are as follows: simulation oil is fitted into the membrane vessel (5), opens pipeline valve one (6) and pipeline valve two (7), closes pipe
Line valve three (8), the simulation oil of membrane vessel (5), fills simulation oil slowly from top to bottom described in manual pump one (1) displacement
The rock core being completely located in rectangular core holding unit (3), the outlet end for being driven to rectangular core holding unit (3) are anhydrous；By saturation simulation
Rectangular core holding unit (3) after water is placed in 40 DEG C of insulating box, to guarantee that simulation oil has certain mobility, in 0.2MPa
Pressure under carry out the displacement simulation water of simulation oil, and displace liquid with container mobile phone, and each 5 minutes primary its of observation are displaced
Whether liquid has grease layering, and observes Flooding Efficiency, when grease layering can not be observed by displacing liquid, then assert simulation
Oil is fully saturated, and records and drive in simulation oil volume V0.The artificial rectangular rock core of simulation oil will be saturated by above-mentioned condition,
In above equipment, simulation water is driven in the flow velocity of 1ml/min with constant-flux pump, be driven to it is oil-free, record displace total water drive go out simulate
Oil volume V1。
9. slug system according to claim 7, which is characterized in that the preparation process of simulation oil described in step 3 is as follows:
Step 1: heating crude oil is spare to 40 DEG C；
Step 2: kerosene is added in Xiang Suoshu crude oil according to live viscosity of crude data, after mixing with six fast rotary viscosities
Meter measurement simulation oil viscosity be 7.8mPa.s to get arrive required simulation oil；
Step 3: being put into spare in closed container after simulation oil is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464626.8A CN109973062A (en) | 2017-12-28 | 2017-12-28 | A kind of five or three slug system of note of optimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464626.8A CN109973062A (en) | 2017-12-28 | 2017-12-28 | A kind of five or three slug system of note of optimization |
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| CN109973062A true CN109973062A (en) | 2019-07-05 |
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Citations (4)
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|---|---|---|---|---|
| US5244042A (en) * | 1991-05-07 | 1993-09-14 | Union Oil Company Of California | Lanthanide-crosslinked polymers for subterranean injection |
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| US20130153228A1 (en) * | 2011-12-14 | 2013-06-20 | Shell Oil Company | System and method for producing oil |
| CN106468152A (en) * | 2015-08-14 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of thick oil horizontal well intensity adjustable shutoff method |
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2017
- 2017-12-28 CN CN201711464626.8A patent/CN109973062A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244042A (en) * | 1991-05-07 | 1993-09-14 | Union Oil Company Of California | Lanthanide-crosslinked polymers for subterranean injection |
| US20130153228A1 (en) * | 2011-12-14 | 2013-06-20 | Shell Oil Company | System and method for producing oil |
| CN102828733A (en) * | 2012-09-04 | 2012-12-19 | 北京科技大学 | Method for extracting residual crude oil in oil field by using foam compound system |
| CN106468152A (en) * | 2015-08-14 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of thick oil horizontal well intensity adjustable shutoff method |
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| Title |
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| 姜海瑞: "卫星油田段塞调驱体系室内研究", 《中国优秀硕士学位论文全文数据库 工程科技 1辑》 * |
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Application publication date: 20190705 |