CN209586344U - A kind of compact oil reservoir natural gas injection drive effect evaluating device - Google Patents
A kind of compact oil reservoir natural gas injection drive effect evaluating device Download PDFInfo
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- CN209586344U CN209586344U CN201921342964.9U CN201921342964U CN209586344U CN 209586344 U CN209586344 U CN 209586344U CN 201921342964 U CN201921342964 U CN 201921342964U CN 209586344 U CN209586344 U CN 209586344U
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- Prior art keywords
- rock core
- pressure
- clamper
- natural gas
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- 239000003345 natural gas Substances 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000005012 migration Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000005429 turbidity Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 210000003800 Pharynx Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001131 transforming Effects 0.000 description 2
- 229940084430 Four-Way Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- -1 methane gas Alkane Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Abstract
The utility model discloses a kind of compact oil reservoir natural gas injections to drive effect evaluating device, it is related to oil-gas reservoir production technique field, the device includes displacement system, compression system and data collection system, multiple electrodes piece is provided in the clamper of its compression system, electrode slice is adjacent to rock core and connect with electric bridge instrument, each section of rock core of resistance can be measured, and then obtains the water saturation of each section of rock core, calculates the injection efficiency of rock core；Transmissometer is provided in its data collection system, it can fine migration amount during experiment with computing according to outlet end fluid turbidity, its influence to Flooding Efficiency is investigated, the present apparatus can also can evaluate simultaneously displacement efficiency, ultimate recovery, be suitable for compact oil reservoir natural gas injection and drive effect assessment experiment.
Description
Technical field
The utility model relates to oil-gas reservoir production technique fields, and in particular to a kind of compact oil reservoir natural gas injection drive effect room
Inner evaluation device.
Background technique
Chemical flooding is common oilfield stimulation measure, and large quantities of high temperature, oil gas with high salt occurs in deep however as exploitation
Hiding, and the moieties in chemical flooding cause its application range limited in high temperature, lower easy failure with high salt, gas drive is not then due to
By high temperature, it is with high salt limitation and by favor, current gas drive includes nitrogen flooding, carbon dioxide flooding, natural gas drive etc., wherein naturally
Gas drive since the advantages that its gas source is abundant, postorder processing is simple, receives significant attention, presently relevant research, test also into
Row.
Displacement test device is the important device of Lab-evaluation Flooding Efficiency, has weight in researching natural gas displacement process
Want meaning, it is well known that, during drilling operation, cementing particle unstable or easy to fall off in reservoir rock, in foeign element as flowed
Body into people, pressure is exciting the effects of under, release, migration easily occurs, blocks pore throat or crack, influences displacement efficiency and final adopts
Yield, it may be said that fine migration is one of an important factor for causing formation damage, however current driving device fails to reflect
Fine migration situation when displacement in rock core.In addition, current driving device function is mostly relatively simple, evaluation parameter is few, needs
Test of many times is wanted to obtain different experiment parameters respectively, this causes cumbersome and time-consuming.
Utility model content
In view of the above technical problem, effect is driven the purpose of this utility model is to provide a kind of compact oil reservoir natural gas injection and is commented
Valence device, the present apparatus can monitor fraction of particle in the fluid of outlet end by outlet end transmissometer, transport to the particle in displacement process
Shift-in has gone quantization, while the present apparatus can also evaluate displacement efficiency, ultimate recovery.
The utility model uses following technical scheme:
A kind of compact oil reservoir natural gas injection drive effect evaluating device, mainly includes three parts:
Displacement system, the system be able to achieve transformation difference under the conditions of constant speed and constant pressure displacement, the displacement system include respectively with
The gas cylinder of multiple-way valve connection, constant pressure and flow displacement system, the gas cylinder has multiple；
Compression system, the compression system include clamper, confining pressure pump, electrode slice and back-pressure valve, are placed in the clamper
Have a rock core, the confining pressure pump connect for rock core application confining pressure with clamper side, the electrode slice be located at clamper it is interior and
It is close to rock core, the electrode slice has multiple and arranges along rock core axis, the outlet of the clamper entrance and multiple-way valve
Connection, outlet are connect with back pressure valve inlet；
Data collection system, including pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge instrument, the flow
Meter and transmissometer are successively connect with back pressure valve outlet, are respectively used to flow measurement and detection outlet end fluid turbidity, are evaluated displacement
Solid phase particles migration quantity in the process；The electrode slice is connect with electric bridge instrument respectively, for the electricity between each section of real-time monitoring rock core
Resistance, and then the water saturation of this section of rock core is obtained according to Archie formula, obtain injection efficiency of the natural gas at each section of rock core；
The back pressure controller is connect with back-pressure valve, for controlling back pressure pressure；The pressure sensor has two and is respectively arranged at
Clamper entry and exit, for measuring rock core import and export end pressure；
Preferably, which further includes computer, the pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge
Instrument is electrically connected with computer respectively, convenient for data centralized recording, control.
Preferably, the electrode slice has 9.
Preferably, the Pressure Sensor Precision is 1/1000.
Compared with prior art, the utility model has the beneficial effects that:
(1) it is provided with the electrode slice for being close to rock core in core holding unit, the resistance between each section of rock core can be monitored in real time,
And then the water saturation of this section of rock core is obtained according to Archie formula, obtain injection efficiency of the natural gas at each section of rock core.
(2) reasonable back pressure value is set, the high-precision pressure sensor at clamper entry and exit end can record pressure in real time
Power, and then obtain natural gas drive pressure transmission efficiency for during.
(3) in displacement process, displacement pressure difference and water-rock effect can make the particle in rock pore structure occur
Migration, and then pore throat is blocked, the percolation ability of rock is reduced, displacement efficiency and final recovery ratio are influenced.The present apparatus is by going out
Fine migration amount in the transmissometer quantization displacement process at mouth end, to optimization displacement pressure difference and selects suitable displacement fluid with weight
Want meaning.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is compression system partial view；
In figure: 1, gas cylinder；101, methane gas cylinder；102, nitrogen gas cylinder；2, constant pressure and flow displacement system；3, multiple valve
Door；4, clamper；5, confining pressure pumps；6, electrode slice；7, back-pressure valve；8, rock core；9, pressure sensor；10, back pressure controller；11,
Flowmeter；12, transmissometer；13, electric bridge instrument；14, computer
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Embodiment:
A kind of compact oil reservoir natural gas injection drive effect evaluating device, mainly includes three parts:
Displacement system, the system be able to achieve transformation difference under the conditions of constant speed and constant pressure displacement, the displacement system include respectively with
The gas cylinder 1 of the connection of multiple-way valve 3, constant pressure and flow displacement system 2, the gas cylinder 1 have 2, are respectively provided with the first of methane gas
Alkane gas cylinder 101 and nitrogen gas cylinder 102 equipped with nitrogen；
Compression system, the compression system include clamper 4, confining pressure pump 5, electrode slice 6 and back-pressure valve 7, in the clamper 4
It is placed with rock core 8, the confining pressure pump 5 is connect for applying confining pressure to rock core 8 with 4 side of clamper, and the electrode slice 6 is located at folder
In holder 4 and it is close to rock core 8, the electrode slice 6 there are 9 and arranges along 8 axis of rock core；4 entrance of clamper and multi-pass
The outlet of road valve 3 connects, and outlet is connect with 7 entrance of back-pressure valve；
Data collection system, including pressure sensor 9, back pressure controller 10, flowmeter 11, transmissometer 12, electric bridge instrument 13
With computer 14, the flowmeter 11 and transmissometer 12 are successively exported with back-pressure valve 7 and are connected, and are respectively used to flow measurement and are detected
Mouth end fluid turbidity, evaluates solid phase particles migration quantity in displacement process；The electrode slice 6 is connect with electric bridge instrument 13 respectively, is used for
Resistance between each section of real-time monitoring rock core, and then the water saturation of this section of rock core is obtained according to Archie formula, obtain day
Right injection efficiency of the gas at each section of rock core；The back pressure controller 10 is connect with back-pressure valve 7, for controlling back pressure pressure；It is described
Pressure sensor 9 has two and is respectively arranged at 4 entry and exit of clamper, and for measuring rock core import and export end pressure, pressure is passed
The precision of sensor 9 is 1/1000；The pressure sensor 9, back pressure controller 10, flowmeter 11, transmissometer 12 and electric bridge instrument 13
It is electrically connected respectively with computer 14.
Further, rock core 8 is the plunger rock core of φ 25mm × 50mm, and multiple-way valve 3 is four way valve and its every company
Valve is provided on adapter tube line.
Further, valve and pressure gauge are connected on the pipeline that confining pressure pump 5 is connect with clamper.
The utility model is illustrated by way of example in text, but the utility model is not limited to above-mentioned specific implementation model
Example, it will be apparent to those skilled in the art that can make various other corresponding according to the above description of the technical scheme and ideas
Change and deformation, and all these change and deformation all should belong to the utility model claims protection scope it
It is interior.
Claims (2)
1. effect evaluating device is driven in a kind of compact oil reservoir natural gas injection, which is characterized in that including displacement system, compression system sum number
According to acquisition system:
The displacement system includes the gas cylinder connecting respectively with multiple-way valve, constant pressure and flow displacement system, and the gas cylinder has more
It is a；
The compression system includes clamper, confining pressure pump, electrode slice and back-pressure valve, is placed with rock core in the clamper, described
Confining pressure pump is connect with clamper side, and the electrode slice is located in clamper and is close to rock core, and the electrode slice has multiple and edge
Rock core axis arrangement；The outlet of the clamper entrance and multiple-way valve connects, and outlet is connect with back pressure valve inlet；
The data collection system includes pressure sensor, back pressure controller, flowmeter, transmissometer and electric bridge instrument, the flow
Meter and transmissometer are successively connect with back pressure valve outlet；The electrode slice is connect with electric bridge instrument respectively；The back pressure controller with return
Pressure valve connection；The pressure sensor has two and is respectively arranged at clamper entry and exit, for measuring rock core import and export end
Pressure.
2. effect evaluating device is driven in a kind of compact oil reservoir natural gas injection according to claim 1, which is characterized in that the device
It further include computer, the pressure sensor, back pressure controller, flowmeter, transmissometer, electric bridge instrument electrically connect with computer respectively
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342964.9U CN209586344U (en) | 2019-08-19 | 2019-08-19 | A kind of compact oil reservoir natural gas injection drive effect evaluating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342964.9U CN209586344U (en) | 2019-08-19 | 2019-08-19 | A kind of compact oil reservoir natural gas injection drive effect evaluating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586344U true CN209586344U (en) | 2019-11-05 |
Family
ID=68347740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921342964.9U Expired - Fee Related CN209586344U (en) | 2019-08-19 | 2019-08-19 | A kind of compact oil reservoir natural gas injection drive effect evaluating device |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671067A (en) * | 2019-11-13 | 2020-01-10 | 吉林大学 | Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit |
| CN111579463A (en) * | 2020-06-29 | 2020-08-25 | 西南石油大学 | Physical simulation device for storing carbon dioxide in water and gas reservoir and simulation method thereof |
| CN112031727A (en) * | 2020-09-03 | 2020-12-04 | 中国石油大学(北京) | Physical simulation device and method for fracturing horizontal well multi-medium throughput |
| CN114166999A (en) * | 2021-12-01 | 2022-03-11 | 中国石油大学(北京) | Oil reservoir type gas storage simulation experiment device and method |
-
2019
- 2019-08-19 CN CN201921342964.9U patent/CN209586344U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671067A (en) * | 2019-11-13 | 2020-01-10 | 吉林大学 | Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit |
| CN110671067B (en) * | 2019-11-13 | 2021-04-09 | 吉林大学 | Device for detecting dielectric property of ice core while drilling by matching with polar air drilling coring type rotary jet drill bit |
| CN111579463A (en) * | 2020-06-29 | 2020-08-25 | 西南石油大学 | Physical simulation device for storing carbon dioxide in water and gas reservoir and simulation method thereof |
| CN112031727A (en) * | 2020-09-03 | 2020-12-04 | 中国石油大学(北京) | Physical simulation device and method for fracturing horizontal well multi-medium throughput |
| CN112031727B (en) * | 2020-09-03 | 2022-03-04 | 中国石油大学(北京) | Physical simulation device and method for fracturing horizontal well multi-medium throughput |
| CN114166999A (en) * | 2021-12-01 | 2022-03-11 | 中国石油大学(北京) | Oil reservoir type gas storage simulation experiment device and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20200819 |