CN106978995B - Fine and close oil meter face surfactant flooding tests on-line metering device and method for handling up - Google Patents
Fine and close oil meter face surfactant flooding tests on-line metering device and method for handling up Download PDFInfo
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- CN106978995B CN106978995B CN201710302880.1A CN201710302880A CN106978995B CN 106978995 B CN106978995 B CN 106978995B CN 201710302880 A CN201710302880 A CN 201710302880A CN 106978995 B CN106978995 B CN 106978995B
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- crude oil
- metering device
- oil
- separation chamber
- handling
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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
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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
- E21B47/00—Survey of boreholes or wells
Abstract
The present invention tests on-line metering device and method for a kind of fine and close oil meter face surfactant flooding for handling up, and on-line metering device includes separation chamber, and separation chamber has inflow entrance and outflux.The inside of separation chamber is equipped with sieve, and the inside of separation chamber is separated into the insulating space being arranged above and below by sieve；Separation chamber is equipped with the inlet being connected to insulating space；Outflux connects crude oil metering device；Inlet is for injecting demulsifier into insulating space；Sieve is for separating crude oil with demulsifier；Crude oil enters crude oil metering device from outflux after the demulsification of demulsifier and the screen to filtrate and is measured.The present invention can eliminate the influence of emulsification, improve measurement accuracy.Can completely measures extraction oil.It is able to achieve the section metering of extraction oil, is easy to repetition and batch operation.
Description
Technical field
The present invention relates to a kind of experiments of reservoir physical simulation more particularly to a kind of fine and close oil meter face surfactant flooding for reality of handling up
Test on-line metering device and method.
Background technique
The permeability of compact reservoir is very poor, although having obtained economic oil stream after pressure break, how to further increase harvesting
The research of rate is still very urgent.However in fine and close grease chamber during rock core displacement physical Model Study, cause is exposed
The features such as close oil core porosity is low, oil content is few, displacement or difficulty of handling up are big, Liquid output is low, causes metering difficulty big.Due to
The finite volume of rock core itself, compact rock core porosity is low in addition, oil content is few, and the produced quantity of crude oil is extremely limited, for adopting
The measuring accuracy of crude oil has higher requirement out.Secondly, in surfactant displacement or during handle up, emulsus easy to form
Liquid also has an immense impact on to the accurate metering of extraction oil mass, leads to not the accurate and effective metering to extraction oil.Existing room
Interior experiment metering method mainly has volumetric method and mass method.
The principle of traditional volumetric method is that extraction liquid measure is directly measured by gauge line, carries out reader after being then demulsified
Amount.A very long time carries out after the operation of emulsion demulsification is frequently in extraction, and non real-time just carries out brokenly to emulsion
Cream is measured, which increase experimental period and complexity, and traditional metering due to core experiment time interval it is small, if want into
Row section metering is extremely inconvenient.
The basic principle of mass method is weighed to gauge line, and the of poor quality of gauge line metering front and back is weighed, it is believed that
It is the quality of extraction oil, calculates extraction oil mass by the relationship of quality, density and volume, realizes the metering of extraction oil mass.But
Influence of this method since the quality of gas or water in emulsion cannot be eliminated, so applicability is unsatisfactory.
The present inventor based on years of experience and practice in relevant industries, proposes a kind of fine and close oil meter face activity as a result,
Agent displacement, which is handled up, tests on-line metering device and method, to overcome the deficiencies of existing technologies.
Summary of the invention
The purpose of the present invention is to provide a kind of fine and close oil meter face surfactant floodings to test on-line metering device and side for handling up
Method can eliminate the influence of emulsification in the crude oil of measurement extraction, improve measurement accuracy.
Another object of the present invention is to provide a kind of fine and close oil meter face surfactant floodings to test on-line metering device for handling up
And method, can completely measure extraction oil.
A further object of the present invention is to provide a kind of fine and close oil meter face surfactant floodings to test on-line metering device for handling up
And method, it is able to achieve the section metering of extraction oil, is easy to repetition and batch operation.
The object of the present invention is achieved like this, it is a kind of densification oil meter face surfactant flooding for handle up test on-line metering dress
It sets, for handling up, to test on-line metering device include closed separation chamber to the densification oil meter face surfactant flooding, the separation chamber
Top and bottom are respectively provided with inflow entrance and outflux；The inside of the separation chamber is equipped with sieve, and the sieve is by the separation
The inside of room is separated into the insulating space being arranged above and below；The separation chamber is equipped with the inlet being connected to the insulating space；Institute
State outflux connection crude oil metering device；The crude oil generated is tested to enter in the separation chamber from the inflow entrance；The injection
Mouth is for injecting demulsifier into the insulating space；The sieve is for separating the crude oil with the demulsifier；It is described
Crude oil carries out after the demulsification of the demulsifier and the screen to filtrate from the outflux into the crude oil metering device
Metering.
In a preferred embodiment of the present invention, the inflow entrance is connected to the insulating space of top layer；It is described
Outflux is connected to the undermost insulating space；The quantity of the inlet is corresponding with the quantity of the insulating space.
In a preferred embodiment of the present invention, the upper end of the separation chamber is equipped with the stomata for air inlet and exhaust.
In a preferred embodiment of the present invention, the inside of the separation chamber is equipped at least two layers of sieve, the sieve
Aperture be gradually reduced from top to bottom.
In a preferred embodiment of the present invention, the inflow entrance connection flows into pipe, is arranged first on the inflow pipe
Valve；The outflux is connect by effuser with the crude oil metering device, and the effuser is equipped with the second valve.
In a preferred embodiment of the present invention, the crude oil metering device is gauge line, the internal diameter of the gauge line
For Φ 3mm.
The purpose of the present invention can also be achieved, and a kind of densification oil meter face surfactant flooding tests on-line metering side for handling up
Method is tested on-line metering device using the fine and close oil meter face surfactant flooding for handling up, is included the following steps:
S1, the crude oil that experiment generates that displacement is handled up are introduced into the separation chamber from the inflow entrance；
S2, demulsifier is injected into the insulating space from the inlet；Crude oil after demulsification passes through the sieve
Filtering separated with demulsifier, crude oil flows downward；
S3, make demulsification and filtered crude oil be flowed into the crude oil metering device and measured.
In a preferred embodiment of the present invention, in step S2, the isolation that crude oil initially rests on top layer is empty
In, demulsifier is injected into the insulating space of top layer, the crude oil after being demulsified flows into next layer by the sieve
The insulating space, one layer of insulating space injects demulsifier still further below；And so on, crude oil is broken at least twice
Cream.
In a preferred embodiment of the present invention, in step S3, gas is injected into the separation chamber by stomata, is pushed away
Dynamic crude oil flows downward, and controls oil-water interfaces, is all introduced into crude oil in crude oil metering device and is measured.
In a preferred embodiment of the present invention, in step S1, the inflow of crude oil is controlled by the first valve；Step
In S3, the outflow of crude oil is controlled by the second valve；Carry out experimentation in different periods oil production section metering or
Continuous metering.
From the above mentioned, the present invention is by setting separation chamber, and sieve is arranged in separation chamber, is arranged on separation chamber's side wall
Inlet, injection demulsifier are demulsified to crude oil, after crude oil and demulsifier separation, can carry out high-precision survey to crude oil
Amount.The influence of emulsification is eliminated, can be timely demulsified in an experiment, the gas after demulsification is discharged by stomata,
Avoid the emulsification in measurement process and the influence of gas, improve the precision of measuring instrument, and it is easy to operate be easy to repeat with
Batch operation, fine and close oily rock core displacement lesser for pore scale handle up experiment with good applicability.Meanwhile in displacement
During handling up, emulsus crude oil flows into separation chamber first and enters back into gauge line, realizes the buffering of emulsus crude oil.It is infused by stomata
Enter the operation of gas, pushes extraction crude oil completely to enter metering section, realize the complete metering of crude oil liquid measure.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein:
Fig. 1: for the structural schematic diagram of on-line metering device of the present invention.
Fig. 2: it handles up the connection schematic diagram of experimental provision for on-line metering device of the present invention and displacement.
Fig. 3: for the metering process schematic diagram of on-line metering device of the present invention.
Fig. 4: the process schematic of crude oil is pushed for the gas injection of on-line metering device of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.Both include being connected directly between two components in the present invention described " connection ", also includes two portions
It is connected between part by least one intermediate member.The noun of locality employed in the present invention is (such as upper and lower, forward and backward) to be only
In conjunction with the clearer statement technology contents of attached drawing, not to the specific restriction of technical solution of the present invention.
On-line metering device is tested as shown in Figure 1, the present invention provides a kind of fine and close oil meter face surfactant floodings for handling up
100, it is mainly used to evaluate compact rock core in CO2, the rows such as surfactant drive medium displacement and handle up the effect of the exploitation under development mode
Fruit can be used to predict and evaluate compact oil reservoir and rock core etc. and rely primarily on surfactant displacement to handle up as effective exploitation mould
The throughput prediction of the oil reservoir of formula.The on-line metering device 100 includes a closed separation chamber 10, when being measured, this point
It needs to place vertically from room 10.The top and bottom of the separation chamber 10 are respectively provided with inflow entrance 11 and outflux 12.Described point
Inside from room 10 is equipped with sieve 20, and the inside of the separation chamber 10 is separated into and is arranged above and below by the generally horizontal setting of sieve 20
Insulating space 30.Sieve 20 is the prior art, and viscosity of crude is higher, and used sieve mesh number is answered smaller.The separation chamber 10
Equipped with the inlet 40 being connected to the insulating space 30；I.e. each insulating space 30 is equipped with the inlet communicated therewith
40, inlet 40 is preferably provided on the side wall of separation chamber 10, and is connected with injection pipe 401, to connect with injector.It is described
Outflux 12 connects crude oil metering device 50.As shown in Figure 3 and Figure 4, the crude oil for testing generation enters institute from the inflow entrance 11
It states in separation chamber 10；Demulsifier is injected into the insulating space 30 by the inlet 40；Demulsifier is the prior art, energy
Enough mix with crude oil is demulsified to crude oil.The sieve 20 is for separating the crude oil with the demulsifier.In gravity
Under effect, crude oil can flow downward by sieve 20, and demulsifier is blocked on sieve 20.To which the crude oil passes through
After the demulsification of the demulsifier and the sieve 20 filter, counted from the outflux 12 into the crude oil metering device 50
Amount.Due to the influence without emulsification, the amount of metering crude oil that can be more accurate.
Embodiment one
In this embodiment, the main part of separation chamber 10 is cylinder made of rigid plastics, and internal diameter is Φ 15mm,
Axial length is 70mm.One is tightly connected at the inflow entrance 11 at 10 top of separation chamber and flows into pipe 110, is arranged on flowing into pipe 110
There is the first valve 111.Preferably, the stomata 13 for air inlet and exhaust is additionally provided at the top of separation chamber 10.In crude oil demulsification
Afterwards, extra gas can be discharged from the stomata 13, will not have an impact to metric results；Meanwhile the stomata 13 can be passed through
To 10 gas injection of separation chamber, pushes crude oil to flow downward, be flowed into crude oil all in crude oil metering device 50.The separation chamber 10
Inside be equipped at least two layers of sieve 20, the aperture of the sieve 20 is gradually reduced from top to bottom.For example, if being only arranged two layers
Sieve 20, then upper screen is -40 mesh of 10 mesh；Lower screen is -200 mesh of 100 mesh.Undermost sieve 20 can also close to point
Bottom setting from room 10.The inflow entrance 11 is connected to the insulating space 30 of top layer；Crude oil is introduced into after entering
In the insulating space 30 of top layer.The outflux 12 is connected to the undermost insulating space 30.Corresponding each layer of isolation
An inlet 40, the quantity of inlet 40 and the quantity pair of insulating space 30 is arranged in space 30 on the side wall of separation chamber 10
It answers.The outflux 12 is connect by effuser 120 with the crude oil metering device 50, and the effuser 120 is equipped with second
Valve 121.The crude oil metering device 50 is gauge line made of glass, and the internal diameter of the gauge line is Φ 3mm, gauge line
Metering section has scale, is horizontally arranged, and the precise measurement of few liquid measure may be implemented.
The present invention also provides a kind of fine and close oil meter face surfactant floodings to test on-line metering method for handling up, using described
Fine and close oil meter face surfactant flooding tests on-line metering device 100 for handling up.As shown in Fig. 2, by the stream of the on-line metering device 100
Enter pipe 110 and be connected to displacement to handle up the outflow end of experimental provision 200 (existing experimental provision), be adopted to its displacement or during handling up
Oil mass out carries out accurate, easy experiment measurement.The on-line metering method includes the following steps:
The first step, the crude oil g that experiment generates that displacement is handled up are introduced into the separation chamber 10 from the inflow entrance 11.
Second step injects demulsifier p into the insulating space 30 from the inlet 40；Crude oil after demulsification passes through
The filtering of the sieve 20 is separated with demulsifier, and crude oil flows downward.
Third step, make demulsification and filtered crude oil g ' be flowed into the crude oil metering device 50 and measured.
Embodiment two
In the present embodiment, the inflow of crude oil is controlled by the first valve 111；Original is controlled by the second valve 121
The outflow of oil.To realize the section metering or continuous metering of the oil production of different periods during the experiment.
In second step, crude oil is initially rested in the insulating space 30 of top layer, the isolation to top layer
Demulsifier is injected in space 30；It can be operated by syringe 60.Crude oil after demulsification passes through the sieve 20
Next layer insulating space 30 is flowed into, one layer of insulating space 30 injects demulsifier still further below；And so on, to crude oil into
Row is demulsified at least twice.
In the third step, it can use syringe 60 and gas injected into the separation chamber 10 by stomata 13, push away
Dynamic crude oil flows downward, and controls oil-water interfaces, is all introduced into crude oil in crude oil metering device 50 and is measured.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.Specifically
All combinations of feature illustrated in embodiment are not necessarily the solution that the present invention is limited, it is possible to understand that these are additional
Construction feature and operations improvement can be used alone or be combined with each other.It will therefore be appreciated that the present invention is not limited to
The combination of any specific feature or element, and any desired feature combination described herein can be carried out without departing from
Protection scope of the present invention, any those skilled in the art, is made under the premise of not departing from design and the principle of the present invention
Equivalent changes and modifications out, should belong to the scope of protection of the invention.
Claims (9)
1. a kind of densification oil meter face surfactant flooding tests on-line metering device for handling up, which is characterized in that the densification oil meter face
For handling up, to test on-line metering device include closed separation chamber to surfactant flooding, and the top and bottom of the separation chamber are respectively provided with
Inflow entrance and outflux, the upper end of the separation chamber are equipped with the stomata for air inlet and exhaust；The inside of the separation chamber is equipped with
The inside of the separation chamber is separated into the insulating space being arranged above and below by sieve, the sieve；The separation chamber be equipped with it is described
The inlet of insulating space connection；The outflux connects crude oil metering device；Test generate crude oil from the inflow entrance into
Enter in the separation chamber；The inlet is for injecting demulsifier into the insulating space；The sieve is used for the original
It is oily to be separated with the demulsifier；The crude oil after the demulsification of the demulsifier and the screen to filtrate from the outflux into
Enter the crude oil metering device to be measured.
2. densification oil meter face surfactant flooding as described in claim 1 tests on-line metering device for handling up, which is characterized in that institute
Inflow entrance is stated to be connected to the insulating space of top layer；The outflux is connected to the undermost insulating space；It is described
The quantity of inlet is corresponding with the quantity of the insulating space.
3. densification oil meter face surfactant flooding as described in claim 1 tests on-line metering device for handling up, which is characterized in that institute
The inside for stating separation chamber is equipped at least two layers of sieve, and the aperture of the sieve is gradually reduced from top to bottom.
4. densification oil meter face surfactant flooding as described in claim 1 tests on-line metering device for handling up, which is characterized in that institute
It states inflow entrance connection and flows into pipe, the first valve is set on the inflow pipe；The outflux passes through effuser and the crude oil meter
Device connection is measured, the effuser is equipped with the second valve.
5. densification oil meter face surfactant flooding as described in claim 1 tests on-line metering device for handling up, which is characterized in that institute
Stating crude oil metering device is gauge line, and the internal diameter of the gauge line is Φ 3mm.
6. a kind of densification oil meter face surfactant flooding tests on-line metering method for handling up, which is characterized in that using claim 1 to
Fine and close oil meter face surfactant flooding described in any one of 5 tests on-line metering device for handling up, and includes the following steps:
S1, the crude oil that experiment generates that displacement is handled up are introduced into the separation chamber from the inflow entrance；
S2, demulsifier is injected into the insulating space from the inlet；Crude oil after demulsification passes through the mistake of the sieve
Filter is separated with demulsifier, and crude oil flows downward；
S3, make demulsification and filtered crude oil be flowed into the crude oil metering device and measured.
7. densification oil meter face surfactant flooding as claimed in claim 6 tests on-line metering method for handling up, which is characterized in that step
In rapid S2, crude oil is initially rested in the insulating space of top layer, and demulsification is injected into the insulating space of top layer
Agent, the crude oil after being demulsified flow into next layer insulating space by the sieve, still further below one layer of insulating space note
Enter demulsifier；And so on, it is demulsified at least twice to crude oil.
8. densification oil meter face surfactant flooding as claimed in claim 6 tests on-line metering method for handling up, which is characterized in that step
In rapid S3, gas is injected into the separation chamber by stomata, crude oil is pushed to flow downward, oil-water interfaces is controlled, keeps crude oil complete
Portion enters in crude oil metering device and is measured.
9. densification oil meter face surfactant flooding as claimed in claim 6 tests on-line metering method for handling up, which is characterized in that step
In rapid S1, the inflow of crude oil is controlled by the first valve；In step S3, the outflow of crude oil is controlled by the second valve；Into
The section metering or continuous metering of the oil production of different periods in row experimentation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710302880.1A CN106978995B (en) | 2017-05-03 | 2017-05-03 | Fine and close oil meter face surfactant flooding tests on-line metering device and method for handling up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710302880.1A CN106978995B (en) | 2017-05-03 | 2017-05-03 | Fine and close oil meter face surfactant flooding tests on-line metering device and method for handling up |
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| Publication Number | Publication Date |
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| CN106978995A CN106978995A (en) | 2017-07-25 |
| CN106978995B true CN106978995B (en) | 2019-09-10 |
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| CN116856906B (en) * | 2023-07-06 | 2024-04-05 | 中国石油大学(北京) | Compact oil metering device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201921641U (en) * | 2011-01-25 | 2011-08-10 | 中煤邯郸设计工程有限责任公司 | Emulsion configuration device for coal mine hydraulic parts |
| CN204200205U (en) * | 2014-11-16 | 2015-03-11 | 东北石油大学 | The Produced Liquid breaking device used in combination flooding oil displacement experiment device |
| CN104877706A (en) * | 2014-02-27 | 2015-09-02 | 中国科学院兰州化学物理研究所 | Demulsification method of oil-in-water type crude oil emulsion |
| CN205007643U (en) * | 2015-09-06 | 2016-02-03 | 西安道恩石油科技发展有限公司 | Oil -gas -water three -phase separator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7823642B2 (en) * | 2007-09-26 | 2010-11-02 | Schlumberger Technology Corporation | Control of fines migration in well treatments |
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- 2017-05-03 CN CN201710302880.1A patent/CN106978995B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201921641U (en) * | 2011-01-25 | 2011-08-10 | 中煤邯郸设计工程有限责任公司 | Emulsion configuration device for coal mine hydraulic parts |
| CN104877706A (en) * | 2014-02-27 | 2015-09-02 | 中国科学院兰州化学物理研究所 | Demulsification method of oil-in-water type crude oil emulsion |
| CN204200205U (en) * | 2014-11-16 | 2015-03-11 | 东北石油大学 | The Produced Liquid breaking device used in combination flooding oil displacement experiment device |
| CN205007643U (en) * | 2015-09-06 | 2016-02-03 | 西安道恩石油科技发展有限公司 | Oil -gas -water three -phase separator |
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