CN109973061A - A kind of three or three slug system of note - Google Patents
A kind of three or three slug system of note Download PDFInfo
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- CN109973061A CN109973061A CN201711462094.4A CN201711462094A CN109973061A CN 109973061 A CN109973061 A CN 109973061A CN 201711462094 A CN201711462094 A CN 201711462094A CN 109973061 A CN109973061 A CN 109973061A
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 238000004088 simulation Methods 0.000 claims description 62
- 239000011435 rock Substances 0.000 claims description 52
- 239000003921 oil Substances 0.000 claims description 46
- 239000007788 liquid Substances 0.000 claims description 25
- 239000012528 membrane Substances 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 12
- 239000000701 coagulant Substances 0.000 claims description 11
- 239000004927 clay Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000010779 crude oil Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 235000019198 oils Nutrition 0.000 description 40
- 101150038956 cup-4 gene Proteins 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 235000019476 oil-water mixture Nutrition 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 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
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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention proposes a kind of three or three slug systems of note, belong to oil field depth profile control 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 three or three slug systems of note, belong to oil field depth profile control 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.) displacement of reservoir oil is carried out, but the obstruction water effect that the above-mentioned each system of single application has is poor, exploits oil effect
The disadvantages of fruit is inefficient.
Summary of the invention
The present invention is poor in order to solve to infuse slug obstruction water effect in the prior art, and the not high defect of oil recovery efficiency proposes
A kind of three or three slug system of note, the technical solution taken are as follows:
A kind of note slug system, the note slug system include three segment bodies, and three segment bodies, each segment body is also
Including three micro- segment bodies；Three micro- segment bodies are respectively as follows: coagulant liquid slug body, suspension slug body and water slug body；It is described
Volume ratio between coagulant liquid slug body and suspension slug body is 1:2.5；The volume of the water slug body is segment body where it
The one third of volume.
Further, the volume of each segment body is 6.3ml；The volume of the coagulant liquid slug body is 1.2ml；It is described
The volume of suspension slug body is 3ml；The volume of the water slug body is 2.1ml.
Further, the coagulant liquid slug body meets crosslinking agent note slug system using JLJ-2；The water slug body is adopted
With simulation water.Wherein, simulation water refers to that the separation water (i.e. oil-water mixture isolate water) of oil field mining liquid, the simulation water accord with
Close formation condition.
Further, the suspension slug body middle particle concentration is 3.5%.
Further, the design of the note slug is as follows:
Step 1: it according to 1/4 ratio of well spacing shared by the rectangular double-deck artificial core length and note slug radius and combines
Infuse slug depth: V=[(face area ÷ 2) × rectangular rock core length × 0.25] ÷ 4, obtain the total volume of note slug；
Step 2: make rectangular rock core saturation simulation water using the rectangular double-deck artificial core driving device；
Step 3: make rectangular rock core saturation simulation oil using the rectangular double-deck artificial core driving device；
Step 4: being laid flat the core holding unit of the rectangular double-deck artificial core driving device, replaces rectangular bilayer with simulation water drive
Artificial core in the graduated pipette of outlet port of rock core holder tape splicing, and measures oil-water ratio in Produced Liquid；It is driven to
Aqueous 90%.
Step 5: the gel note slug system of first segment body in three segment bodies, clay particle are infused into slug body
The pipeline of rectangular rock heterogeneous core driving 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 6min18s (18 seconds six minutes) and stop afterwards, during which record pressure change；
Step 6: after five days, the gel of second segment body in three segment bodies is infused into section after the rock core is taken out
The pipeline of the rectangular double-deck artificial core driving device is added in cock body system, clay particle note slug system and water slug body, is used in combination
Constant-flux pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, during which record pressure
Power variation；
Step 7: the gel of the third segment body in three segment bodies is infused into slug after the rock core being taken out after five days
System, clay particle note slug system and water slug body are added the pipeline of rectangular rock heterogeneous core driving device, and with putting down
Stream pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, during which records pressure
Variation；
Step 8: after five days, with constant-flux pump with the flow velocity of 1ml/min carry out simulation water drive rock core Crude Oil, be driven to it is oil-free,
The volume V that displaces oil total to step 8 of recording step four2.Recovery ratio increment=(V2-V1)÷V0× 100%.
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 rock 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.
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, every five minutes
Primary its of time observation displace whether liquid has grease layering, and observe Flooding Efficiency, can not observe grease when displacing liquid
When layering, then assert that simulation oil is fully saturated, and records and drive in simulation oil volume V0.The rock core can do next step water drive
Experiment or note slug experiment.
Further, it will be saturated the artificial rectangular rock core of simulation oil by above-mentioned condition, in above equipment, and used advection
Pump with the flow velocity of 1ml/min drives in simulation water, is driven to oil-free, then record displaces total simulation 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 casting forging plug
With the blocking action avoided is single；Meanwhile it effectively being dropped by the design of design and segment body ratio to note slug segment body structure
The weak problem of low single note slug blocked force in segment body, realizes the blocked force of optimum degree, under this ratio, infuses slug
Just right for the resistance of water, the blockage effect for realizing water is best, and oily open circuit effect is best, meanwhile, the present invention proposes
Note slug system recovery ratio increment can be made to reach 9%.
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 note slug system, the note slug system include three segment bodies, and three segment bodies, each segment body is also
Including three micro- segment bodies；Three micro- segment bodies are respectively as follows: coagulant liquid slug body, suspension slug body and water slug body；It is described
Volume ratio between coagulant liquid slug body and suspension slug body is 1:2.5；The volume of the water slug body is segment body where it
The one third of volume.
Wherein, the volume of each segment body is 6.3ml；The volume of the coagulant liquid slug body is 1.2ml；The suspension
The volume of liquid slug body is 3ml；The volume of the water slug body is 2.1ml.
The coagulant liquid slug body meets crosslinking agent note slug system using JLJ-2；The water slug body is using simulation water.
Wherein, 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 ground
Layer condition.
The suspension slug body middle particle concentration is 3.5%.
The process (technique) of the note slug system is as follows:
Step 1: according to the ratio of well spacing shared by the rectangular double-deck artificial core length and note slug radius and note section is combined
Depth model: H=ratio × rectangular rock core length is filled in, the depth H of note slug is obtained；
Step 2: make rectangular rock core saturation simulation water using the rectangular double-deck artificial core driving device；
Step 3: make rectangular rock core saturation simulation oil using the rectangular double-deck artificial core driving device；
Step 4: it is laid flat the core holding unit of the rectangular double-deck artificial core driving device, with simulation water drive for rectangular rock
Stem in the graduated pipette of outlet port of rock core holder tape splicing, and measures oil-water ratio in Produced Liquid；
Step 5: the gel note slug system of first segment body in three segment bodies, clay particle are infused into slug body
The pipeline of rectangular rock heterogeneous core driving 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 6min18s (18 seconds six minutes) and stop afterwards, during which record pressure change；
Step 6: after five days, the gel of second segment body in three segment bodies is infused into section after the rock core is taken out
The pipeline of rectangular rock heterogeneous core driving device is added in cock body system, clay particle note slug system and water slug body, is used in combination
Constant-flux pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, during which record pressure
Power variation；
Step 7: after five days, the gel of the third segment body in three segment bodies is infused into section after the rock core is taken out
The pipeline of rectangular rock heterogeneous core driving device is added in cock body system, clay particle note slug system and water slug body, is used in combination
Constant-flux pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, during which record pressure
Power variation；
Step 8: after five days, with constant-flux pump with the flow velocity of 1ml/min carry out simulation water drive rock core Crude Oil, be driven to it is oil-free,
The volume V that displaces oil total to step 8 of recording step four2.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, then the negative pressure provided with manual pump 1 for rectangular core holding unit 3 for rectangular core holding unit 3,
The air in rectangular core holding unit 3 is extracted out slowly, the negative pressure formed inside the rectangular core holding unit 3 will be in measuring cup
Simulation water being pumped into rectangular core holding unit 3 slowly, make the rectangular rock core saturation simulation in rectangular core holding unit 3
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 displaces liquid with container mobile phone, and
It is observed every one (every 5 minutes) time and displaces whether liquid has grease layering, and observes Flooding Efficiency, it can not when displacing liquid
When observing grease layering, then assert that simulation oil is fully saturated.Wherein, the artificial rectangular rock core of the bilayer uses rectangle
Cube structure, and it includes the upper and lower two parts, wherein a length of 30.3cm of the artificial rectangular rock core of bilayer；
For the rectangular end face of the artificial rectangular rock core of bilayer having a size of 4.5cm × 4.5cm, the thickness of the upper and lower is identical.
Also, 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.
Wherein, simulation oil is the oil body of simulation oil field Crude Oil in preparation process.
The rectangular double-deck artificial 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 (8)
1. a kind of three or three slug system of note, which is characterized in that the slug system include three segment bodies, three segment bodies, often
A segment body further includes three micro- segment bodies；Three micro- segment bodies are respectively as follows: coagulant liquid slug body, suspension slug body and water
Slug body；Volume ratio between the coagulant liquid slug body and suspension slug body is 1:2.5；The volume of the water slug body is
The one third of segment body volume where it.
2. slug system according to claim 1, which is characterized in that the volume of each segment body is 6.3ml；The gel
The volume of liquid slug body is 1.2ml；The volume of the suspension slug body is 3ml；The volume of the water slug body is 2.1ml.
3. slug system according to claim 2, 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.
4. slug system according to claim 2, which is characterized in that the suspension slug body middle particle concentration is 3.5%.
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 is as follows:
Step 1: according to 1/4 ratio of well spacing shared by the rectangular double-deck artificial core length and note slug radius and note section is combined
Fill in depth: V=[(face area ÷ 2) × rectangular rock core length × 0.25] ÷ 4, obtain the volume of note slug；
Step 2: make rectangular rock core saturation simulation water using the rectangular double-deck artificial core driving device；
Step 3: make rectangular rock core saturation simulation oil using the rectangular double-deck artificial core driving device；
Step 4: being laid flat the core holding unit of the rectangular double-deck artificial core driving device, artificial for rectangular bilayer with simulation water drive
Rock core in the graduated pipette of outlet port of rock core holder tape splicing, and measures oil-water ratio in Produced Liquid；It is driven to aqueous
90%
Step 5: by the gel of first segment body in three segment bodies note slug system, clay particle note slug system with
And the pipeline of rectangular rock heterogeneous core driving device is added in water slug body, and drives in rock with constant-flux pump with the flow velocity of 1ml/min
In heart clamp holder, drives 6min18s (18 seconds six minutes) and stop afterwards, during which record pressure change；
Step 6: after five days, the gel of second segment body in three segment bodies is infused into slug body after the rock core is taken out
The pipeline of the rectangular double-deck artificial core driving device is added in system, clay particle note slug system and water slug body, and uses advection
Pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, is during which recorded pressure and is become
Change；
Step 7: the gel of the third segment body in three segment bodies is infused into slug body after the rock core being taken out after five days
The pipeline of rectangular rock heterogeneous core driving device is added in system, clay particle note slug system and water slug body, and uses advection
Pump is driven in core holding unit with the flow velocity of 1ml/min, is driven 6min18s (18 seconds six minutes) and is stopped afterwards, is during which recorded pressure and is become
Change；
Step 8: after five days, simulation water drive rock core Crude Oil is carried out with the flow velocity of 1ml/min with constant-flux pump, is driven to oil-free, record
The step 4 volume V that displaces oil total to step 82.Recovery ratio increment=(V2-V1)÷V0× 100%.
6. slug system according to claim 5, which is characterized in that the rectangular rock heterogeneous core driving device includes hand
One (1) of dynamic pump, manual pump two (2), rectangular core holding unit (3), measuring cup (4), membrane vessel (5), pipeline valve one (6), pipe
Line valve two (7), pipeline valve three (8) and insulating box (9)；The pumping hole end of the manual pump two (2) passes through pipeline and the side
The side wall entrance end of shape core holding unit (3) is connected；The bottom end suction inlet of the rectangular core holding unit (3) is set to the measuring cup
(4) in cup body；The top inlet of the rectangular core holding unit (3) passes through the arrival end of pipeline and the membrane vessel (5)
It is connected；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)；Institute
Membrane vessel (5) bottom nozzle is stated to be connected by pipeline with the pumping hole end of the manual pump one (1)；It is pressed from both sides in the rectangular rock core
The pipeline that the top inlet of holder (3) is connected with the arrival end of the membrane vessel (5) is equipped with pipeline valve one (6)；Institute
It states the pipeline that the top inlet of rectangular core holding unit (3) is connected with the pumping hole end of the manual pump one (1) and is equipped with line valve
Three (8) of door；Pipeline 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)
Valve 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 5, which is characterized in that rectangular rock core saturation simulation water is specific described in step 2
Process are as follows: 40 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 the negative pressure that rectangular core holding unit (3) provide, and slowly takes out the air in rectangular core holding unit (3)
Out, the negative pressure formed inside the rectangular core holding unit (3) presss from both sides the rectangular rock core that is pumped into of the simulation water in measuring cup slowly
In holder (3), make the rectangular rock core saturation simulation water in rectangular core holding unit (3).
8. slug system according to claim 5, which is characterized in that rectangular rock core saturation simulation oil is specific described in step 3
Process are as follows: the rectangular core holding unit (3) after saturation simulation water is placed in 40 DEG C of insulating box, to guarantee that simulation oil has centainly
Mobility, the displacement simulation water of simulation oil is carried out under the pressure of 0.2MPa, was observed every 5 minutes every a period of time primary
It displaces whether liquid has grease layering, and observes Flooding Efficiency, when grease layering can not be observed by displacing liquid, then recognizes
It is fully saturated to determine simulation oil.
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| CN201711462094.4A CN109973061A (en) | 2017-12-28 | 2017-12-28 | A kind of three or three slug system of note |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711462094.4A CN109973061A (en) | 2017-12-28 | 2017-12-28 | A kind of three or three slug system of note |
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2017
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| Title |
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| 郭雨仙: "大庆油田S区块调剖体系方案优化设计研究", 《化学工程师》 * |
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Application publication date: 20190705 |