CN106501493A - A kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method - Google Patents
A kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 21
- 238000011068 loading method Methods 0.000 title claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000006004 Quartz sand Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000033764 rhythmic process Effects 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 20
- 238000002474 experimental method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 14
- 238000005755 formation reaction Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000000262 chemical ionisation mass spectrometry Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2823—Raw oil, drilling fluid or polyphasic mixtures
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- 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
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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Abstract
The present invention discloses a kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method.The sandpack column is made up of main body, Rigid Porous dividing plate, end cap, screen pack, sealing gasket, connecting bolt, heated for controlling temperature set, rotary shaft and support etc., and wherein die body and end cap are stainless steel.Body interior is cuboid, guiding fixing groove is machined with its inwall, body interior space is divided into multilayer compartment by pluggable Rigid Porous dividing plate, the quartz sand that each compartment is required to load different meshes combination according to concrete in-place permeability size and the rhythm, the anisotropism of simulated formation.Body exterior arranges heated for controlling temperature set, realizes that the self-constant temperature of sandpack column is arranged.Model top surface and bottom surface arrange the thermobaric field change inside thermometric, pressure tap monitoring model, and model arranges rotary shaft and support, facilitates the filling of model and the setting at simulated formation inclination angle.The present invention can truly simulate the channelling flow-disturbing phenomenon of actual heterogeneous reservoir inter-layer fluid.
Description
Technical field
The present invention relates to a kind of indoor displacement test being applied in oil-gas field development physical simulation experiment technical field grinds
Study carefully device and method.
Background technology
At present, some waterflooding oil fields of China have been enter into the high water-cut development stage, but oil recovery factor is still relatively low.Study carefully
Its reason, is that the anisotropism of oil reservoir plane and longitudinal direction, the difference of profit viscosity and note are adopted during water flooding
The factors such as the injection-production relation imbalance of well pattern cause displacement fluid to be advanced by leaps and bounds along high permeability formation in the way of fingering or tonguing, and oil reservoir is low
Infiltration layer is not involved, and substantial oil is still detained in the earth formation.Therefore, it is to improve to improve oil reservoir sweep efficiency using transfer drive technology
The important means of oil recovery factor.Transfer drive technical research, profile control agent performance evaluation etc. are generally required for carrying out indoor physical simulation
Experiment.
Carry out laboratory physical simulation experiment, it is basis to build appropriate core model.Carry out room in oilfield exploitation procedure
Core model used by interior physical simulation experiment mainly have take from the natural cylindrical rock core on stratum, microscopic glass etching model,
Artificial column or flat board rock core and sand-filling tube model etc..Wherein natural core obtains difficult, high cost；Microscopic glass is etched
Moulded dimension is little, high cost, can not be resistance to gently pressure；Artificial column or the resistance to gentle resistance to pressure of flat board rock core can be general.Back-up sand
Tube model, using the quartz sand and different compaction's simulated formations of different-grain diameter, shows as one-dimensional fill out sand tube, its feature more
Be repeatable load, low cost, can high temperature high voltage resistant, be applied in a lot of indoor displacement tests.
When needing to simulate inhomogeneous formation, at present how using heterogeneous body parallel double tube or three pipe sandpack columns.
Although parallel tube model has played very important effect in terms of the closure of the profile control agents such as gel, foam, bifurcated characteristic is evaluated.
But due to isolated from one another between parallel pipe, when injection fluid flows through parallel pipe, cannot be along journey between the fluid in height osmos tube
Circulation transmission, only shunts in model porch, it is impossible to which the true channelling for simulating actual heterogeneous reservoir inter-layer fluid is streamed
Feature.In addition, conventional sandpack column structure and flow process are more complicated, it is that simulation reservoir temperature need to be placed in constant temperature oven, using not
Very facilitate.In this regard, researcher has carried out beneficial improvement trial to sandpack column.Utility model patent（Authorization Notice No.：
CN204314270U）A kind of single tube dividing plate non-homogeneous model is disclosed, barrel interior is divided into simultaneously by different compartments using dividing plate
Place the mode of different permeability rock cores to simulate Reservoir Heterogeneity.The model structure is simple, simplify experiment flow, but flows
Body can not be flowed between different permeability rock cores by dividing plate.Application for a patent for invention（Application publication number：CN105201470A）
Height permeable areas are separated by cylindrical copper mesh, so as to overcome heterogeneous body parallel double tube model and single tube dividing plate heterogeneous body
Model can not embody the defect that the interlayer of true heterogeneous reservoir streams feature.But the fill out sand tube using by sand grains be submerged in from
The mode for beaing in sub- water and gently lucite tube makes quartzy sandfilling packed uniform, realizes low-permeability side in compacted sand layer
Face may be present.In addition, the sandpack column does not have self-constant temperature function, the operation in terms of simulation reservoir temperature
Should be similar with the complexity that traditional sandpack column is placed in constant temperature oven.Utility model patent（Authorization Notice No.：CN
205154120U）A kind of sandpack column pipe with self-heating function is proposed, the intensification that existing sandpack column pipe is present is solved
Slowly, the complicated problem of high-temperature operation, but the sandpack column can not realize the heteropic simulation in stratum using single tube.
Content of the invention
In order to solve the technical problem being previously mentioned in background technology, the present invention provides a kind of displacement test heterogeneous body from perseverance
Warm sandpack column and loading method, can truly simulate the channelling of actual heterogeneous reservoir inter-layer fluid, flow-disturbing using this scheme existing
As.
The technical scheme is that：This kind of displacement test heterogeneous body self-constant temperature sandpack column, including die body, end
Lid, screen pack, sealing gasket, connecting bolt, heated for controlling temperature set, for facilitating the filling of model and the rotary shaft at simulated formation inclination angle
And support, thermometer hole, pressure tap and note adopt interface, which is unique in that：
Also there is the model Rigid Porous dividing plate, the Rigid Porous dividing plate can separate by the back-up sand layer of its both sides, but not
Simulated experiment fluid is hindered to circulate by its eyelet；The die body and end cap are stainless steel；
It is cuboid inside the die body, on its inwall, is machined with guiding fixing groove, can be inserted into Rigid Porous dividing plate will be main
Body inner space is divided into multilayer compartment, and each compartment loads corresponding mesh according to the specific requirement of in-place permeability size and the rhythm
The quartz sand that array is closed, the anisotropism of simulated formation；Heated for controlling temperature set is set outside the die body, realizes sandpack column
Self-constant temperature；
Thermometer hole, pressure tap are arranged on the top surface of the model and bottom surface, so as to thermobaric field inside monitoring model in experimentation
Change.
A kind of loading method for manufacturing aforementioned displacement test heterogeneous body self-constant temperature sandpack column, the method include following step
Suddenly：
1）According to requirement of the specific experiment to model anisotropism, permeability and the porosity of each back-up sand layer is determined, and according to warp
Test the mesh number and ratio for selecting quartz sand, the quartz sand for corresponding particle diameter being prepared with sub-sieve；
2）Filter screen, sealing gasket are loaded onto in one end of die body and is assembled with connecting bolt and end cap, then by rotation
Model is vertically placed by axle, and the one end for assembling is down；
3）Guiding fixing groove insertion Rigid Porous dividing plate in main body inner wall, the inner space of die body is empirically required
The number of plies is separated into corresponding compartment；
4）The different quartz sand combination equal-volumes that has selected are added corresponding compartment on a small quantity, and is entered with special compacting block accordingly
Row compacting, until filling up compartment.During back-up sand, the temp probe and pressure probe of corresponding height position are passed through thermometric
Pressure tap insertion sandpack column is simultaneously connected；
5）Filter screen, sealing gasket are loaded onto in the upper end of die body and is assembled with connecting bolt and end cap, then note is adopted and is connect
Mouth carries out pressure test after being connected on end cap.
The present invention has the advantages that：Present invention aim to address using traditional heterogeneous body parallel double tube or three pipes
When displacement test carried out by sandpack column, injection fluid flow in parallel pipe during fluid cannot be along journey between height osmos tube
Transmission and exchange, are only capable of shunting in model porch, it is impossible to the true channelling for simulating actual heterogeneous reservoir inter-layer fluid
Or the problem that streams, while solve that traditional fill out sand tube does not possess self-constant temperature function and process CIMS is complicated and ask using inconvenience etc.
Topic, is the indoor displacement of the raising oil recovery factor mechanism such as gel, foam profile and chemical injection, steam injection and effect assessment
Experimental study provide a kind of reuse, easy to operate, function stronger can as the heterogeneous body sandpack column of separate unit and
Loading method.When being embodied as, using Rigid Porous dividing plate, the present invention realizes that different permeability layer of sand single tubes are loaded, different layers of sand
In fluid can pass through dividing plate eyelet along Cheng Liutong, the channelling flow-disturbing so as to truly simulate actual heterogeneous reservoir inter-layer fluid is existing
As；In addition, the model is aided with self-constant temperature function, make sandpack column depart from insulating box with independent heterogeneous core model unit to be in
Existing, can be used for gel, foam profile and chemical injection, steam etc. and improve the interior drive such as oil recovery factor mechanism and effect assessment
Replace experimental study.
Description of the drawings：
Fig. 1 is a kind of generalized section of displacement test heterogeneous body self-constant temperature sandpack column of the present invention.
Fig. 2 is a kind of square end surface schematic diagram of displacement test heterogeneous body self-constant temperature sandpack column of the present invention.
Fig. 3 is a kind of circular end face schematic diagram of displacement test heterogeneous body self-constant temperature sandpack column of the present invention.
Fig. 4 is special compacting block schematic diagram used by a kind of displacement test heterogeneous body self-constant temperature sandpack column of the invention.
Specific embodiment：
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, this is described in detail to the specific embodiment of the present invention below in conjunction with the accompanying drawings, so that the present invention is disclosed
A kind of displacement test with the feature and using method of heterogeneous body self-constant temperature sandpack column and loading method definitely.
A kind of displacement test of the present invention heterogeneous body self-constant temperature sandpack column, as shown in Figure 1, Figure 2, Figure 3 shows.The mould
Type by end cap 3, sealing gasket 4, circular stainless steel filtering net, die body 5, Rigid Porous dividing plate 10, back-up sand layer 7, connecting bolt 1,
Heated for controlling temperature set 6, rotary shaft and support 8, thermometer hole 9, pressure tap 11 and note are adopted the part such as interface 2 and are constituted, wherein model master
Body and end cap etc. are processed using stainless steel.The assembling mode of each several part is：Note adopts interface 2+ end caps 3+ sealings
Pad 4+ die body 5+ sealing gasket 4+ end caps 3+ notes adopt interface 2；The two ends of die body 5 add stainless steel filtering net；Model master
Rigid Porous dividing plate 10 is installed and the layer of sand 7 of corresponding mesh number combination is inserted in compartment in the inside of body 5；The top surface of die body 5 and
Bottom surface opens up thermometer hole 9 and pressure tap 11 and installs corresponding thermometric pressure measuring tie-in；The outside of die body 5 installs heated for controlling temperature set
6；Die body is rack-mount by rotary shaft 8.
The inside of die body 5 is cuboid, is machined with guiding fixing groove on its inwall, can be inserted into Rigid Porous dividing plate 10
Body interior space is divided into multilayer compartment, each compartment loads phase according to the specific requirement of in-place permeability size and the rhythm
The quartz sand layer for answering mesh number to combine（Or other material packed layers）7, the anisotropism of simulated formation.The outside of die body 5 is
Cuboid, such as Fig. 2, are to increase its bearing capacity to be processed into cylinder, such as Fig. 3.The inwall of the die body 5 carries out coarse
Change is processed, it is to avoid in displacement process, Experimental Flowing Object is along wall channelling.
The size of the sandpack column and dividing plate quantity can require to be adjusted in processing according to specific experiment.Described firm
The back-up sand layer of its both sides can be separated by property porous barrier 10, but not hinder simulated experiment fluid to circulate by its eyelet.Stone
The mesh number combination of sand layer 7 is designed according to specific experiment.Quartz sand layer 7 is carried out as shown in Figure 4 using special compacting block
Compacting.
The thermometric of the model top surface and bottom surface setting, pressure measurement hole number are required to enter in mould processing according to specific experiment
Row adjustment, to meet the requirement of thermobaric field change inside monitoring model in experimentation.The sandpack column by rotary shaft and
Support carries out angular adjustment, facilitates the filling of model and the setting at simulated formation inclination angle.
A kind of loading method of displacement test heterogeneous body self-constant temperature sandpack column of the present invention is comprised the following steps：
1）According to requirement of the specific experiment to model anisotropism, permeability and the porosity of each back-up sand layer 7 is determined, and according to warp
Test the mesh number and ratio for selecting quartz sand, the quartz sand for corresponding particle diameter being prepared with sub-sieve；
2）Filter screen, sealing gasket 4 are loaded onto in one end of die body 5 and is assembled with end cap 3 with connecting bolt 1, then passed through
Model is vertically placed by rotary shaft 8, and the one end for assembling is down；
3）Guiding fixing groove insertion Rigid Porous dividing plate 10 on 5 inwall of main body, by the inner space of die body 5 empirically
It is required that the number of plies is separated into corresponding compartment；
4）The different quartz sand combination equal-volumes that has selected are added corresponding compartment on a small quantity, and is entered with special compacting block accordingly
Row compacting, until filling up compartment.During back-up sand, the temp probe and pressure probe of corresponding height position are passed through thermometric
Pressure tap insertion sandpack column is simultaneously connected；
5）Filter screen, sealing gasket 4 are loaded onto in the upper end of die body 5 and is assembled with end cap 3 with connecting bolt 1, then will note
Adopting after interface 2 is connected on end cap carries out pressure test.
So far, the heterogeneous body self-constant temperature sandpack column for having loaded can be with the independent heterogeneous core model of disengaging insulating box
Unit is used for gel, foam profile and chemical injection, steam etc. and improves the interior drive such as oil recovery factor mechanism and effect assessment
Replace experimental study.
Claims (2)
1. a kind of displacement test heterogeneous body self-constant temperature sandpack column, including die body（5）, end cap（3）, screen pack, sealing
Pad（4）, connecting bolt（1）, heated for controlling temperature set（6）, for facilitate the filling of model and the rotary shaft at simulated formation inclination angle and
Frame（8）, thermometer hole（9）, pressure tap（11）And note adopts interface（2）, it is characterised in that：
The model also has Rigid Porous dividing plate（10）, the Rigid Porous dividing plate can separate the back-up sand layer of its both sides,
But do not hinder simulated experiment fluid to circulate by its eyelet；The die body and end cap are stainless steel；
It is cuboid inside the die body, on its inwall, is machined with guiding fixing groove, can be inserted into Rigid Porous dividing plate will be main
Body inner space is divided into multilayer compartment, and each compartment loads corresponding mesh according to the specific requirement of in-place permeability size and the rhythm
The quartz sand that array is closed, the anisotropism of simulated formation；Heated for controlling temperature set is set outside the die body, realizes sandpack column
Self-constant temperature；
Thermometer hole（9）, pressure tap（11）Top surface and the bottom surface of the model is arranged on, inside monitoring model in experimentation
The change of thermobaric field.
2. loading method of the displacement test described in a kind of manufacturing claims 1 with heterogeneous body self-constant temperature sandpack column, the method
Comprise the following steps：
1）According to requirement of the specific experiment to model anisotropism, permeability and the porosity of each back-up sand layer is determined, and according to warp
Test the mesh number and ratio for selecting quartz sand, the quartz sand for corresponding particle diameter being prepared with sub-sieve；
2）Filter screen, sealing gasket are loaded onto in one end of die body and is assembled with connecting bolt and end cap, then by rotation
Model is vertically placed by axle, and the one end for assembling is down；
3）Guiding fixing groove insertion Rigid Porous dividing plate in main body inner wall, the inner space of die body is empirically required
The number of plies is separated into corresponding compartment；
4）The different quartz sand combination equal-volumes that has selected are added corresponding compartment on a small quantity, and is entered with special compacting block accordingly
The temp probe and pressure probe of corresponding height position, until filling up compartment, during back-up sand, are passed through thermometric by row compacting
Pressure tap insertion sandpack column is simultaneously connected；
5）Filter screen, sealing gasket are loaded onto in the upper end of die body and is assembled with connecting bolt and end cap, then note is adopted and is connect
Mouth carries out pressure test after being connected on end cap.
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| CN201610957727.8A CN106501493A (en) | 2016-11-03 | 2016-11-03 | A kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method |
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| CN108548702A (en) * | 2018-03-10 | 2018-09-18 | 东北石油大学 | Matrix-high infiltration strip rock core prepares green body and rock core preparation method |
| CN108825221A (en) * | 2018-06-01 | 2018-11-16 | 中国海洋石油集团有限公司 | Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device and method in layer |
| CN108918375A (en) * | 2018-05-15 | 2018-11-30 | 常州大学 | Consider the stacking rock core displacement test device and method of channelling |
| CN109113687A (en) * | 2017-06-26 | 2019-01-01 | 中国石油天然气股份有限公司 | A kind of back-up sand pipe device of simulation core and fill and present method |
| CN109505593A (en) * | 2018-11-21 | 2019-03-22 | 河北工业职业技术学院 | A kind of three-dimensional visualization sandpack column and preparation method thereof |
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| CN109113687A (en) * | 2017-06-26 | 2019-01-01 | 中国石油天然气股份有限公司 | A kind of back-up sand pipe device of simulation core and fill and present method |
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| CN107514252A (en) * | 2017-09-30 | 2017-12-26 | 中国石油大学(北京) | A kind of heavy crude reservoir thermal recovery visual virtual design device |
| CN108548702A (en) * | 2018-03-10 | 2018-09-18 | 东北石油大学 | Matrix-high infiltration strip rock core prepares green body and rock core preparation method |
| CN108548702B (en) * | 2018-03-10 | 2020-09-22 | 东北石油大学 | Preparation blank of matrix-hypertonic strip rock core and rock core preparation method |
| CN108918375A (en) * | 2018-05-15 | 2018-11-30 | 常州大学 | Consider the stacking rock core displacement test device and method of channelling |
| CN108825221A (en) * | 2018-06-01 | 2018-11-16 | 中国海洋石油集团有限公司 | Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device and method in layer |
| CN109505593B (en) * | 2018-11-21 | 2022-06-28 | 河北工业职业技术学院 | Three-dimensional visual sand filling model and preparation method thereof |
| CN109505593A (en) * | 2018-11-21 | 2019-03-22 | 河北工业职业技术学院 | A kind of three-dimensional visualization sandpack column and preparation method thereof |
| CN111206924A (en) * | 2020-02-13 | 2020-05-29 | 中海石油(中国)有限公司 | Heterogeneous sand-filling model with partition plates and adjustable injection and production angles |
| CN111206924B (en) * | 2020-02-13 | 2023-06-20 | 中海石油(中国)有限公司 | Non-homogeneous sand filling model with baffle plate and adjustable injection and production angle |
| CN111155991A (en) * | 2020-02-25 | 2020-05-15 | 东北石油大学 | Separable double-layer pressure-resistant sand filling pipe for simulating interlayer cementation poor stratum and simulation method |
| CN112943188A (en) * | 2021-03-25 | 2021-06-11 | 北京拓普莱博油气田开发技术研究院 | Sand filling pipe core for simulating water injection of water injection well and manufacturing method |
| CN113607622A (en) * | 2021-08-04 | 2021-11-05 | 西南石油大学 | Experimental device and method for testing turbulence influence in water flooding process through double pipes |
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