CN217180509U - Combined core displacement experimental device for representing reservoir interference degree - Google Patents
Combined core displacement experimental device for representing reservoir interference degree Download PDFInfo
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- CN217180509U CN217180509U CN202220027093.7U CN202220027093U CN217180509U CN 217180509 U CN217180509 U CN 217180509U CN 202220027093 U CN202220027093 U CN 202220027093U CN 217180509 U CN217180509 U CN 217180509U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 58
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 47
- 239000008398 formation water Substances 0.000 claims abstract description 46
- 238000002474 experimental method Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 abstract description 49
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- 238000005065 mining Methods 0.000 description 8
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- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
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Abstract
The utility model discloses a combined rock core displacement experimental device for representing reservoir interference degree, which comprises a constant-pressure constant-speed pump, a first six-way valve, a simulated formation water storage tank, a simulated formation oil storage tank, a second six-way valve, a first rock core gripper group, a third six-way valve, a second rock core gripper group and a confining pressure pump; the first core holder group and the second core holder group are both arranged in parallel to form a plurality of groups; the first six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank; the input of the second six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank, and the output of the second six-way valve is respectively connected with the first rock core clamping groups in a one-to-one correspondence manner; the third six-way valve is connected between the first core holder group and the second core holder group; the confining pressure pump subsections are correspondingly connected with the first core holder group and the second core holder group one by one; and the output of the second core holder group is connected with the simulated formation water storage tank or the simulated formation oil storage tank.
Description
Technical Field
The utility model belongs to the technical field of the rock core displacement experiment technique and specifically relates to a sign reservoir interference degree's combination rock core displacement experimental apparatus.
Background
The core displacement device is a physical property testing instrument used in the technical field of energy science, and has the main functions of liquid permeability measurement, stratum sensitivity (stratum damage) evaluation, oil extraction chemical evaluation, seepage characteristic research and enhanced recovery rate research.
The utility model discloses a chinese utility model patent of "rock core displacement experimental apparatus" as patent application number is "201820960493.7", name, it includes the rock core holder, there are first valve and second valve at the both ends of rock core holder through the pipeline intercommunication respectively, the one end of first valve has the blowing cassette through the pipeline intercommunication, the one end swing joint of blowing cassette has the receipts material cassette, the one end intercommunication of receiving the material cassette has the trunk line, the one end intercommunication that the material cassette was kept away from to the trunk line has pressure device, pressure device and manometer, and the intercommunication has the semi-permeable baffle on buffer container's the output tube.
The device comprises an injection system, a model system and a measuring system, wherein the injection system is used for injecting fluid into the model system, the model system comprises a long rock core system formed by connecting a plurality of rock core holders in series, and the outlet of each rock core holder is connected with a back pressure system; the measurement system includes a flow measurement system connected to the back pressure system outlet.
For another example, the patent of the chinese utility model with the patent application number of "201920716663.1" and the name of "a multifunctional rock core displacement experimental apparatus" includes: the device comprises a filtering system, a heating device, a rock core holder and a collecting device; the filtering system comprises a filter, a flow meter and a pressure meter; the heating device comprises a heating element and a stirring device, and the wall thickness of the heater box body is large, so that the heating device has a good heat-preservation effect; the core holder is connected with a water outlet of the heating device, a core rubber sleeve and a rubber sleeve end plug are arranged in the core holder to tightly surround the core, the pressure sensor is connected to the core holder through threads, and a hydraulic port is arranged on one side of the core holder and connected with the confining pressure pump; the collecting device comprises a condensation pipe and a collecting container.
However, the traditional core parallel displacement device for simulating multi-layer commingled production has the following defects:
firstly, the experimental core on each parallel branch is generally only one, and the transverse heterogeneity of the porosity and permeability of each oil layer in an actual oil reservoir cannot be effectively simulated;
and secondly, experimental cores on all parallel branches are independent of each other, and interference and channeling activities of fluid in an actual oil reservoir among oil reservoirs with different porosities and permeabilities can not be effectively simulated when multilayer commingled production is carried out.
Therefore, a combined rock core displacement experimental device which is simple in structure, reliable in test and strong in anti-interference capability and can represent the reservoir interference degree is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a sign reservoir stratum interference degree's combination rock core displacement experimental apparatus, the utility model discloses a technical scheme as follows:
a combined core displacement experiment device for representing reservoir interference degree comprises a constant-pressure constant-speed pump, a first six-way valve, a simulated formation water storage tank, a simulated formation oil storage tank, a second six-way valve, a first core gripper group, a third six-way valve, a second core gripper group and a confining pressure pump; the first core holder group is connected in parallel to form an array; the second core holder group is connected in parallel to form an array; the first six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank, receives the pressurizing of the constant-pressure constant-speed pump and provides simulated formation pressure; the input of the second six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank, and the output of the second six-way valve is respectively connected with the first core holder groups in a one-to-one correspondence manner and is used for providing simulated formation water and/or simulated formation oil; the third six-way valve is connected between the first core holder group and the second core holder group; the confining pressure pump subsections are connected with the first core holder group and the second core holder group in a one-to-one correspondence manner; and the output of the second core holder group is connected with the simulated formation water storage tank or the simulated formation oil storage tank.
Further, the first core holder group comprises a fifth valve, a first core holder and a sixth valve which are connected in sequence; the fifth valve is connected with the second six-way valve; and the sixth valve is connected with the third six-way valve.
Furthermore, the second core holder group comprises a seventh valve, a second core holder and a first back pressure valve which are connected in sequence; and the seventh valve is connected with the third six-way valve, and the first back pressure valve is connected with the simulated formation water storage tank or the simulated formation oil storage tank.
Preferably, a fourth six-way valve is arranged between the first core holder group and the confining pressure pump.
Further, an eighth valve is connected between the fourth six-way valve and the first core holder set.
Preferably, a fifth six-way valve is arranged between the second core holder group and the confining pressure pump.
Further, a ninth valve is arranged between the fifth six-way valve and the second core holder group.
Furthermore, the combined core displacement experimental device for representing the reservoir interference degree further comprises a first valve arranged between the first six-way valve and the simulated formation water storage tank, a second valve arranged between the first six-way valve and the simulated formation oil storage tank, a third valve arranged between an outlet of the simulated formation water storage tank and an outlet of the simulated formation oil storage tank, and a fourth valve arranged between an outlet of the simulated formation oil storage tank and the second six-way valve.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model skillfully sets two rock core holders on each parallel branch, and forms a combined rock core (a group of combined rock cores corresponds to one parallel branch) by using the six-way valve connection, and can realize the single-mining simulation of each oil layer of the oil reservoir and the multilayer combined mining simulation of the whole oil reservoir by switching the valves of the corresponding holders; meanwhile, the transverse heterogeneity of the porosity and permeability of each oil layer in the actual oil reservoir can be simulated more truly;
(2) the utility model discloses a six-way valve connects each combination rock core, can simulate actual oil reservoir multilayer co-production more really, the influence of pressure interference and fluid exchange between each oil reservoir to the oil reservoir recovery ratio, and then can evaluate the interference degree of multilayer co-production time interbed channeling and different heterogeneous combination to the reservoir more accurately;
to sum up, the utility model has the advantages of simple structure, experimental reliable, interference killing feature are strong, have very high practical value and spreading value in rock core displacement experiment technical field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of the present invention.
In the drawings, the names of the components corresponding to the reference numerals are as follows:
1. a constant pressure constant speed pump; 2. a first six-way valve; 3. a first valve; 4. a second valve; 5. simulating a formation water storage tank; 6. simulating a formation oil storage tank; 7. a third valve; 8. a fourth valve; 9. a second six-way valve; 10. a fifth valve; 11. a first core holder; 12. a sixth valve; 13. a third six-way valve; 14. a seventh valve; 15. a second core holder; 16. a first back pressure valve; 17. a confining pressure pump; 18. a fourth six-way valve; 19. a fifth six-way valve; 20. an eighth valve; 21. a ninth valve; 22. a tenth valve; 23. a third core holder; 24. an eleventh valve; 25. a twelfth valve; 26. a fourth core holder; 27. a second back pressure valve; 28. a thirteenth valve; 29. a fourteenth valve; 30. a fifteenth valve; 31. a fifth core holder; 32. a sixteenth valve; 33. a seventeenth valve; 34. a sixth core holder; 35. a third back pressure valve; 36. an eighteenth valve; 37. a nineteenth valve.
Detailed Description
To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Examples
As shown in fig. 1, this embodiment provides a combination core displacement experiment apparatus for characterizing a reservoir disturbance degree. First, the terms "first", "second", and the like in the present embodiment are used only for distinguishing the same kind of components, and are not to be construed as specifically limiting the scope of protection.
In this embodiment, the combined core displacement experimental apparatus includes a constant-pressure constant-speed pump 1, a first six-way valve 2, a storage tank, a second six-way valve 9, a first core gripper set, a third six-way valve 13, and a second core gripper set, which are sequentially arranged along a pipeline direction; the other path comprises a confining pressure pump 17, a fourth six-way valve 18 (a fifth six-way valve 19) and a first core holder group (a second core holder group); the fourth six-way valve 18 is connected with any one of the first core holders 11 through an eighth valve 20; the fifth six-way valve 19 is connected to any one of the second core holders 15 via a ninth valve.
In this embodiment, the first core holder group and the second core holder group are both provided with 3 groups connected in parallel, and the first core holder group includes a fifth valve 10, a first core holder 11 and a sixth valve 12 which are connected in sequence; the fifth valve 10 is connected with the second six-way valve 9; the sixth valve 12 is connected to a third six-way valve 13. In addition, the second core holder group comprises a seventh valve 14, a second core holder 15 and a first back pressure valve 16 which are connected in sequence; the seventh valve 14 is connected to the third six-way valve 13, and the first back-pressure valve 16 is connected to the simulated formation water storage tank 5 or the simulated formation oil storage tank 6.
In the present embodiment, the first six-way valve 2 is connected to the simulated formation water storage tank 5 via the first valve 3, and the first six-way valve 2 is connected to the simulated formation oil storage tank 6 via the second valve 4. A third valve 7 is arranged between the outlet of the simulated formation water storage tank 5 and the outlet of the simulated formation oil storage tank 6, and a fourth valve 8 is arranged between the simulated formation oil storage tank 6 and the second six-way valve 9.
The working principle of the present embodiment is briefly described as follows:
in this embodiment, the three parallel branches are: the first branch line consists of a fifth valve 10, a first core holder 11, a sixth valve 12, a third six-way valve 13, a seventh valve 14, a second core holder 15 and a first back pressure valve 16; the second branch consists of a tenth valve 22, a third core holder 23, an eleventh valve 24, a third six-way valve 13, a twelfth valve 25, a fourth core holder 26 and a second back pressure valve 27; the third branch is formed by a fifteenth valve 30, a fifth core holder 31, a sixteenth valve 32, a third six-way valve 13, a seventeenth valve 33, a sixth core holder 34 and a third back-pressure valve 35.
Six cores which are subjected to single-phase water logging permeability measurement are selected to be vacuumized and saturated to simulate formation water treatment, then the cores are respectively placed into six core holders according to 3 heterogeneous combination schemes set based on the actual condition of an oil reservoir to form 3 groups of combined cores in parallel (a first group of combined cores are formed by a first core holder 11 and a second core holder 15, a second group of combined cores are formed by a third core holder 23 and a fourth core holder 26, and a third group of combined cores are formed by a fifth core holder 31 and a sixth core holder 34).
Single-phase water liquid permeability test of combined rock core
Opening a first valve 3, a third valve 7, a fourth valve 8, a fifth valve 10, a sixth valve 12, a seventh valve 14, a first back pressure valve 16, an eighth valve 20 and a ninth valve 21, pressurizing the simulated formation water storage tank 5 by using a constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through a first group of combined cores formed by a first core holder 11 and a second core holder 15, monitoring and controlling pumping pressure difference by using pressure gauges on a first six-way valve 2 and a second six-way valve 9, controlling pressures in the first core holder 11 and the second core holder 15 by using a confining pressure pump 17, and finally calculating the single-phase water liquid permeability of the first group of combined cores formed by the first core holder 11 and the second core holder 15 by counting the volume and the test time of the flowing simulated formation water and combining core basic parameters.
Opening a first valve 3, a third valve 7, a fourth valve 8, a tenth valve 22, an eleventh valve 24, a twelfth valve 25, a second back pressure valve 27, a thirteenth valve 28 and a fourteenth valve 29, pressurizing the simulated formation water storage tank 5 by using a constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through a second group of combined cores formed by a third core holder 23 and a fourth core holder 26, monitoring and controlling pumping pressure difference by pressure gauges on a first six-way valve 2 and a second six-way valve 9 during the process, meanwhile, the pressure in the third core holder 23 and the fourth core holder 26 is controlled through the confining pressure pump 17, and finally, the single-phase water liquid water logging permeability of a second group of combined cores formed by the third core holder 23 and the fourth core holder 26 can be calculated through counting the volume of the flowing simulated formation water and the testing time and combining the basic parameters of the cores.
Opening a first valve 3, a third valve 7, a fourth valve 8, a fifteenth valve 30, a sixteenth valve 32, a seventeenth valve 33, a third back-pressure valve 35, an eighteenth valve 36 and a nineteenth valve 37, pressurizing the simulated formation water storage tank 5 by using a constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through a third group of combined cores formed by a fifth core holder 31 and a sixth core holder 34, monitoring and controlling pumping differential pressure by pressure gauges on a first six-way valve 2 and a second six-way valve 9 during the process, meanwhile, the pressure in the fifth core holder 31 and the sixth core holder 34 is controlled through the confining pressure pump 17, and finally, the single-phase water liquid water logging permeability of a third group of combined cores formed by the fifth core holder 31 and the sixth core holder 34 can be calculated through counting the volume of the flowing simulated formation water and the testing time and combining the basic parameters of the cores.
(II) combined core single-mining simulation
(1) Establishing irreducible water saturation of a composite core
And opening a second valve 4, a fourth valve 8, a fifth valve 10, a sixth valve 12, a seventh valve 14, a first back pressure valve 16, an eighth valve 20 and a ninth valve 21, pressurizing the simulated formation oil storage tank 6 by using a constant-pressure constant-speed pump 1, enabling the simulated formation oil to flow through a first group of combined cores formed by a first core holder 11 and a second core holder 15, monitoring and controlling pumping pressure difference by using pressure gauges on the first six-way valve 2 and the second six-way valve 9, controlling the pressures in the first core holder 11 and the second core holder 15 by using a confining pressure pump 17, and closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% of the simulated formation oil, so that the bound water saturation establishment of the first group of combined cores formed by the first core holder 11 and the second core holder 15 is completed.
And opening the second valve 4, the fourth valve 8, the tenth valve 22, the eleventh valve 24, the twelfth valve 25, the second back pressure valve 27, the thirteenth valve 28 and the fourteenth valve 29, pressurizing the simulated formation oil storage tank 6 by using the constant-pressure constant-speed pump 1, enabling the simulated formation oil to flow through a second group of combined cores formed by the third core holder 23 and the fourth core holder 26, monitoring and controlling pumping pressure difference by using pressure gauges on the first six-way valve 2 and the second six-way valve 9 during the pressurizing process, controlling the pressures in the third core holder 23 and the fourth core holder 26 by using the confining pressure pump 17, and closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% of the simulated formation oil, so that the saturation degree of the bound water of the second group of combined cores formed by the third core holder 23 and the fourth core holder 26 is established.
And opening a second valve 4, a fourth valve 8, a fifteenth valve 30, a sixteenth valve 32, a seventeenth valve 33, a third back pressure valve 35, an eighteenth valve 36 and a nineteenth valve 37, pressurizing the simulated formation oil storage tank 6 by using a constant-pressure constant-speed pump 1, enabling the simulated formation oil to flow through a third group of combined cores formed by a fifth core holder 31 and a sixth core holder 34, monitoring and controlling pumping pressure difference by using pressure gauges on a first six-way valve 2 and a second six-way valve 9 during the pressurizing process, controlling the pressures of the fifth core holder 31 and the sixth core holder 34 by using a confining pressure pump 17, and closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% of the simulated formation oil, so that the saturation degree of the bound water of the third group of combined cores formed by the fifth core holder 31 and the sixth core holder 34 is established.
(2) Determining extent of production of a composite core
On the basis of completing the establishment of the saturation of the irreducible water of the first group of combined rock cores, closing the second valve 4, opening the first valve 3, the third valve 7, the fourth valve 8, the fifth valve 10, the sixth valve 12, the seventh valve 14, the first back pressure valve 16, the eighth valve 20 and the ninth valve 21, pressurizing the simulated formation water storage tank 5 by using the constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through the first group of combined rock cores formed by the first rock core holder 11 and the second rock core holder 15 for water displacement, monitoring and controlling the pumping pressure difference by using pressure gauges on the first six-way valve 2 and the second six-way valve 9 during the period, controlling the pressure in the first rock core holder 11 and the second rock core holder 15 by using the confining pressure pump 17, closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% of the simulated formation water, measuring and counting the volume of the displaced simulated formation oil, and calculating the simulated formation oil production degree of the first group of combined cores by combining the basic parameters of the cores and the irreducible water saturation of the first group of combined cores.
On the basis of completing the establishment of the saturation of the confined water of the second group of combined rock core, closing the second valve 4, opening the first valve 3, the third valve 7, the fourth valve 8, the tenth valve 22, the eleventh valve 24, the twelfth valve 25, the second back-pressure valve 27, the thirteenth valve 28 and the fourteenth valve 29, pressurizing the simulated formation water storage tank 5 by using the constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through the second group of combined rock core formed by the third rock core holder 23 and the fourth rock core holder 26 for water displacement, monitoring and controlling the pressure difference by using the pressure meters on the first six-way valve 2 and the second six-way valve 9 during the period, controlling the pressure in the third rock core holder 23 and the fourth rock core holder 26 by using the rock core confining pressure pump 17, closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% of the simulated formation water, measuring and counting the volume of the displaced simulated formation oil, and calculating the simulated formation oil production degree of the second group of combined cores by combining the basic parameters of the cores and the irreducible water saturation of the second group of combined cores.
On the basis of completing the establishment of the saturation of the bound water of the third group of combined rock core, closing a second valve 4, opening a first valve 3, a third valve 7, a fourth valve 8, a fifteenth valve 30, a sixteenth valve 32, a seventeenth valve 33, a third back pressure valve 35, an eighteenth valve 36 and a nineteenth valve 37, pressurizing a simulated formation water storage tank 5 by using a constant-pressure constant-speed pump 1, enabling the simulated formation water to flow through the third group of combined rock core formed by a fifth rock core holder 31 and a sixth rock core holder 34 for water displacement, monitoring and controlling the pumping pressure difference by using pressure gauges on a first six-way valve 2 and a second six-way valve 9 during the period, controlling the pressure in the fifth rock core holder 31 and the sixth rock core holder 34 by using a confining pressure pump 17, closing the constant-pressure constant-speed pump 1 when the outflow liquid is 100% simulated formation water, measuring and counting the volume of the displaced simulated formation oil, and calculating the simulated formation oil production degree of the third group of combined cores by combining the basic parameters of the cores and the irreducible water saturation of the third group of combined cores.
(III) combined core commingling simulation
According to the method for simulating the single-mining of the combined rock core, firstly, the irreducible water saturation of each combined rock core set is established (the irreducible water saturation of each combined rock core set is basically consistent when the single-mining simulation and the commingled-mining simulation are carried out as far as possible), then, the second valve 4 is closed, the first valve 3, the third valve 7, the fourth valve 8, the fifth valve 10, the sixth valve 12, the seventh valve 14, the first back pressure valve 16, the eighth valve 20, the ninth valve 21, the tenth valve 22, the eleventh valve 24, the twelfth valve 25, the second back pressure valve 27, the thirteenth valve 28, the fourteenth valve 29, the fifteenth valve 30, the sixteenth valve 32, the seventeenth valve 33, the third back pressure valve 35, the eighteenth valve 36 and the nineteenth valve 37 are opened, the constant-speed pump 1 is used for pressurizing the simulated formation water storage tank 5, so that the simulated formation water flows through the three combined rock cores connected in parallel to carry out water displacement respectively, and when the liquid flowing out of each group of combined rock core branch is 100% simulated formation water, closing the constant-pressure constant-speed pump 1, measuring and counting the volume of the simulated formation oil displaced by each branch, and calculating the simulated formation oil production degree of each group of combined rock core during commingling by combining the basic parameters of the rock core and the saturation of the irreducible water of each group of combined rock core.
(IV) quantitative characterization of interlayer interference
And (3) combining the results of the simulated formation oil production degrees of the combined core branches in single-mining and combined-mining, which are obtained in the second step (II) and the third step (III), and combining a production degree interference coefficient formula to calculate, wherein the results can quantitatively represent the interbedded interference phenomenon.
Interlayer interference coefficient formula:
in the formula:
γ (t) -extraction degree interference coefficient, dimensionless;
E rdi (t) -the extraction degree of the ith layer during single extraction without dimension;
E rhi (t) -the degree of extraction of the ith layer in multi-layer co-production, with no dimension.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.
Claims (8)
1. A combined core displacement experiment device for representing reservoir interference degree is characterized by comprising a constant-pressure constant-speed pump, a first six-way valve, a simulated formation water storage tank, a simulated formation oil storage tank, a second six-way valve, a first core gripper group, a third six-way valve, a second core gripper group and a confining pressure pump; the first core holder groups are arranged in parallel to form a plurality of groups; the second core holder group is connected in parallel to form a plurality of groups; the first six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank, receives the pressurizing of the constant-pressure constant-speed pump and provides simulated formation pressure; the input of the second six-way valve is respectively connected with the simulated formation water storage tank and the simulated formation oil storage tank, and the output of the second six-way valve is respectively connected with the first core holder groups in a one-to-one correspondence manner and is used for providing simulated formation water and/or simulated formation oil; the third six-way valve is connected between the first core holder group and the second core holder group; the confining pressure pump subsections are connected with the first core holder group and the second core holder group in a one-to-one correspondence manner; and the output of the second core holder group is connected with the simulated formation water storage tank or the simulated formation oil storage tank.
2. The combined core displacement experimental device for characterizing the reservoir disturbance degree according to claim 1, wherein the first core holder group comprises a fifth valve, a first core holder and a sixth valve which are sequentially connected; the fifth valve is connected with the second six-way valve; and the sixth valve is connected with the third six-way valve.
3. The combined core displacement experimental device for representing the reservoir interference degree according to claim 1 or 2, wherein the second core holder group comprises a seventh valve, a second core holder and a first back pressure valve which are sequentially connected; and the seventh valve is connected with the third six-way valve, and the first back pressure valve is connected with the simulated formation water storage tank or the simulated formation oil storage tank.
4. The combined core displacement experiment device for characterizing the reservoir disturbance degree according to claim 1, wherein a fourth six-way valve is arranged between the first core holder set and the confining pressure pump.
5. The combined core displacement experimental device for characterizing the reservoir disturbance degree according to claim 4, further comprising an eighth valve connected between the fourth six-way valve and the first core holder set.
6. The combined core displacement experimental device for representing the reservoir disturbance degree according to claim 1, wherein a fifth six-way valve is arranged between the second core holder group and the confining pressure pump.
7. The combined core displacement experiment device for representing the reservoir disturbance degree according to claim 6, wherein a ninth valve is arranged between the fifth six-way valve and the second core holder group.
8. The combined core displacement experimental device for representing the reservoir disturbance degree according to claim 1, further comprising a first valve arranged between the first six-way valve and the simulated formation water storage tank, a second valve arranged between the first six-way valve and the simulated formation oil storage tank, a third valve arranged between an outlet of the simulated formation water storage tank and an outlet of the simulated formation oil storage tank, and a fourth valve arranged between an outlet of the simulated formation oil storage tank and the second six-way valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220027093.7U CN217180509U (en) | 2022-01-07 | 2022-01-07 | Combined core displacement experimental device for representing reservoir interference degree |
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| CN202220027093.7U CN217180509U (en) | 2022-01-07 | 2022-01-07 | Combined core displacement experimental device for representing reservoir interference degree |
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| CN (1) | CN217180509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755163A (en) * | 2022-05-05 | 2022-07-15 | 西南石油大学 | Experimental system for representing interlayer interference degree of reservoir |
| CN116448343A (en) * | 2023-04-15 | 2023-07-18 | 西南石油大学 | Device and method for predicting underground hydrogen storage leakage pressure |
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2022
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755163A (en) * | 2022-05-05 | 2022-07-15 | 西南石油大学 | Experimental system for representing interlayer interference degree of reservoir |
| CN114755163B (en) * | 2022-05-05 | 2024-05-31 | 西南石油大学 | Experimental system for representing interference degree of reservoir stratum |
| CN116448343A (en) * | 2023-04-15 | 2023-07-18 | 西南石油大学 | Device and method for predicting underground hydrogen storage leakage pressure |
| CN116448343B (en) * | 2023-04-15 | 2023-11-10 | 西南石油大学 | Device and method for predicting underground hydrogen storage leakage pressure |
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