CN107817201A - A kind of parallel core clamper - Google Patents
A kind of parallel core clamper Download PDFInfo
- Publication number
- CN107817201A CN107817201A CN201710972943.4A CN201710972943A CN107817201A CN 107817201 A CN107817201 A CN 107817201A CN 201710972943 A CN201710972943 A CN 201710972943A CN 107817201 A CN107817201 A CN 107817201A
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- parallel
- cylinder
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- hole
- gear
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Classifications
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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
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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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
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- 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
- G01N33/24—Earth materials
Abstract
The present invention relates to a kind of parallel core clamper, including cylinder in parallel, ring gear, base, packing element, it is characterised in that：Cylinder and drive end bearing bracket in parallel, rear end cap is connected by screw, before preceding diaphragm seal and rear diaphragm seal are respectively placed in cylinder in parallel, afterwards in seal groove, plug is connected through a screw thread with drive end bearing bracket and rear end cap, packing element is placed in inner barrel in parallel, square valve element small end is connected through a screw thread with fine-tuning nut, big end coordinates with square valve pocket, square valve is placed in the middle part of cylinder in parallel in square through hole, cylinder in parallel and connecting rod tip, contiguous block is connected by screw, contiguous block is welded in ring gear periphery, ring gear and planetary gear, central gear, which coordinates, forms planetary gears, central gear, Y shape baffle plate and wrist-pin end of connecting rod end long with rotating bar coordinate, flat key is placed in the long end keyway of rotating bar, rotating bar and the long stent on base and short support assorted.The present invention efficiently, quickly can be simulated for interlayer and heterosphere stratum and measure relevant parameter.
Description
Technical field
The present invention relates to a kind of rock core reservoir physical simulation experimental rig, and in particular to a kind of parallel core clamper.
Background technology
Core holding unit is that wide infrastructure component is used in development experiments, primarily directed in oil and natural gas
Among geological prospecting and related development research, by formation at target locations coring, being completed in core holding unit related to rock core
The correlation test such as permeability, porosity and other formation damages, so as to obtain rock core and fluid items physical parameter, further
Reflect the correlation properties on stratum.The purpose of core holding unit is more single, mainly clamps, stable rock core, and control is every
Simulated formation parameter simultaneously forms confined space, completes the experiment of various simulated environments and obtains test parameters.
With the continuous progress of domestic and international oil development, oil reservoir interlayer contradiction is more and more prominent, because reservoir formation is various
Lithology mutually mingles, and anisotropism influences to protrude with anisotropy, and each interlayer physical property difference is larger.Using conventional single rock core
Clamping can not reflect the flowing of medium between the layers well to simulate the correlation tests such as the water filling of reservoir formation, infringement
Relation, can simulation it is poor, measurement result deviation is big.The parallel core generally used now and the realization of heterogeneous core clamper
Method is relatively simple, is only that the superposition of different physical property lithology is put into clamper, it is impossible to relative influence parameter is adjusted, made
With inconvenience.Clamped for this reason, it is necessary to design a kind of rock core related to heterosphere stratum for interlayer come simulated formation work
Condition, by adjusting flow and relative gravity direction, and change experiment lithology and carry out accurately, easily measurement stratum physical parameter.
The content of the invention
The purpose of the invention is to solve the above problems, and is proposed a kind of with efficiently adjustable parallel core clamping
Device simulates interlayer and inhomogeneous formation environment to realize, measures the work of related property parameter.
The purpose of the present invention is achieved through the following technical solutions：A kind of parallel core clamper, including cylinder in parallel, it is interior
Gear ring, base, packing element, it is characterised in that：Cylinder in parallel is connected by screw with drive end bearing bracket, rear end cap, and preceding diaphragm seal is with after
Diaphragm seal is respectively placed in the forward and backward seal groove of cylinder in parallel, and plug is connected through a screw thread with drive end bearing bracket and rear end cap, and packing element is placed in
Inner barrel in parallel, square valve element small end are connected through a screw thread with fine-tuning nut, and big end coordinates with square valve pocket, and square valve is nested with
In in square through hole, cylinder in parallel is connected by screw with connecting rod tip, contiguous block, and contiguous block is welded in internal tooth in the middle part of cylinder in parallel
Circle periphery, ring gear coordinates with planetary gear, central gear forms planetary gears, and central gear, Y shape baffle plate and connecting rod are small
End end long with rotating bar coordinates, and flat key is placed in the long end keyway of rotating bar, rotating bar and the long stent on base and short support
Coordinate.
The cylinder in parallel symmetrically offers Liang Ge work chamber, and forward and backward both ends are provided with seal groove, top and bottom
Fuel feed hole and oil leak hole are offered respectively, and middle part offers square through hole, and two cavitys close on wall and are provided with trapezoidal convex, trapezoidal
Communication port is offered in the middle part of convex.
The drive end bearing bracket, rear end cap are provided with wedge-shaped convex with the top of cylinder mating surface in parallel, and wedge-shaped convex middle part is hollow
Bottom offers internal thread, offers through hole in the middle part of drive end bearing bracket, through hole periphery is printed on a circle dial.
The fine-tuning nut small end is provided with anti-slip tank, big to hold periphery to be evenly equipped with teeth groove, matches somebody with somebody with dial in the middle part of drive end bearing bracket
Close.
Runner is offered in the middle part of the plug, small end coordinates with core sample end, and end face offers annular and cylindricality
Groove, big end outside are evenly equipped with multiple handling grooves, and big end inner side, which is closed on, offers screw thread on cylinder.
Long stent and short support are provided with the base；Long stent on both sides of the middle is provided with fixed block, and top is provided with counterbore,
Top offers positioning hole, and top inner side offers the step clearance for being available for observation；Planetary gear passes through bolt and fixed block
It is connected with counterbore.
Screw thread is offered at the top of the long end of rotating bar, offers keyway close to bottom, bottom is provided with convex, convex end face
With being bonded on the outside of long stent.
Half-turn side end is evenly equipped with blind hole on the ring gear, and pin coordinates through positioning hole and blind hole.
The Y shape baffle plate is placed on the long end of rotating bar, each top middle portion perforate respectively with planetary gear coordinate, inner side with
Ring gear, planetary gear, central gear fitting, ensure each gear in the same plane.
The packing element both ends are designed with the wedge-like opening coordinated with wedge-shaped convex, and side door offers square orifice, square orifice four
Week is provided with the dovetail groove coordinated with trapezoidal convex.
Square groove is opened in described square valve pocket one end, and lateral array has many flow through holes.
Described square valve element one end is provided with the cylindrical bar with partial threads, and cylindrical bar may pass through preceding diaphragm seal and drive end bearing bracket
Middle through-hole；Square valve element lateral array has many flow through holes, flow through hole shape both when it is placed in square valve pocket bottommost
Into one-to-one corresponding.
Beneficial effects of the present invention：
1. the clamper can load the rock core of two kinds of different lithologies, for simulating the operating mode of interlayer and heterosphere stratum,
More single core holding unit can it is truer, accurately measure stratum related property parameter.
2. can be inserted into flow regulator in the middle part of cylinder in parallel, Flow-rate adjustment is real with square valve pocket and square valve element
It is existing, by the flow parameter between the conveniently adjusted two kinds of rock cores of fine-tuning nut, have very without the formation characteristics of situation to studying
Big effect；Flow regulator is changed to targetedly artificial core simultaneously, for realizing more complicated ground environment simulation.
3. using special construction packing element, be advantageous to the clamping of rock core, and inner sealing, realize by displacing medium with
The effect that confined pressure control fluid is effectively isolated.
4. it can realize that cylinder in parallel rotates with ring gear and is in different angle using planetary wheeling mechanism, can be in simulation core
Portion's fluid media (medium) is in operating mode during different relative gravity directions at work, so as to obtain the different flowing laws of medium；Together
When herein the mechanism be reducing gear, there is laborsaving, reliable effect under the cooperation of various supporting constructions.
Brief description of the drawings
Fig. 1 is the assembling schematic perspective view of parallel core clamper；
Fig. 2 is the assembling full sectional view of parallel core gripper part；
Fig. 3 is the exploded perspective schematic diagram that parallel core clamper adjusts part；
Fig. 4 is the schematic perspective view of cylinder in parallel；
Fig. 5 is the schematic perspective view of drive end bearing bracket；
Fig. 6 is the schematic perspective view of packing element；
Fig. 7 is the cooperation schematic perspective view of square valve pocket, square valve element and fine-tuning nut；
In figure：1- parallel connection cylinders；2- drive end bearing brackets；3- plugs；4- fine-tuning nuts；5- rotating bars；6- ring gears；7- bases；
8- connecting rods；9- rear end caps；Diaphragm seal after 10-；11- packing elements；The square valve pockets of 12-；The square valve elements of 13-；Diaphragm seal before 14-；15- is filled
Unload groove；The short supports of 16-；17-Y shape baffle plates；18- contiguous blocks；19- blind holes；20- long stents；21- positioning holes；22- counterbores；23- sells
Nail；24- flat keys；25- fixed blocks；26- central gears；27- planetary gears；28- seal grooves；29- oil inlets；30- square through holes；
The trapezoidal convexes of 31-；32- drain taps；33- communication ports；34- wedge shape convexes；35- through holes；36- wedge-like openings；37- dovetail grooves；38-
Square orifice；39- square grooves；40- cylindrical bars.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute
State.
As Figure 1-4, a kind of parallel core clamper, including cylinder in parallel 1, ring gear 6, base 7, packing element 11, its
It is characterised by：Cylinder 1 in parallel is connected by screw with drive end bearing bracket 2, rear end cap 9, and preceding diaphragm seal 14 and rear diaphragm seal 10 are distinguished
It is placed in the forward and backward seal groove 28 of cylinder 1 in parallel, plug 3 is connected through a screw thread with drive end bearing bracket 2 and rear end cap 9, and packing element 11 is placed in simultaneously
Join inside cylinder 1, the square small end of valve element 13 is connected through a screw thread with fine-tuning nut 4, and big end coordinates with square valve pocket 12, square valve
Set 12 is placed in the middle part square through hole 30 of cylinder 1 in parallel, and cylinder 1 in parallel is connected by screw with connecting rod 8 end, contiguous block 18 greatly,
Contiguous block 18 is welded in the periphery of ring gear 6, and ring gear 6 coordinates with planetary gear 27, central gear 26 forms planetary gears, in
Heart gear 26, Y shape baffle plate 17 and the small end of connecting rod 8 coordinate with 5 long end of rotating bar, and flat key 24 is placed in the long end keyway of rotating bar 5,
Rotating bar 5 coordinates with the long stent 20 on base 7 and short support 16.
As shown in figure 4, the internal symmetry of cylinder in parallel 1 offers Liang Ge work chamber, forward and backward both ends are provided with close
Sealing groove 28, top and bottom offer fuel feed hole 29 and oil leak hole 32 respectively, and middle part offers square through hole 30, and work chamber faces
Near wall is provided with trapezoidal convex 31, and the trapezoidal middle part of convex 31 offers communication port 33.
As shown in Figure 1 and Figure 5, the drive end bearing bracket 2, rear end cap 9 are provided with wedge-shaped convex with the top of the mating surface of cylinder 1 in parallel
34, the hollow bottom in the wedge-shaped middle part of convex 34 offers internal thread, and the middle part of drive end bearing bracket 2 offers through hole 35, and the periphery of through hole 35 is printed on
One circle dial.
As shown in figure 1, the small end of fine-tuning nut 4 is provided with anti-slip tank, and it is big to hold periphery to be evenly equipped with teeth groove, with drive end bearing bracket table
Middle face dial coordinates.
As shown in Fig. 2 the middle part of plug 3 offers runner, small end coordinates with core sample end, and end face offers
Annular and cylindrical groove, big end outside are evenly equipped with multiple handling grooves 15, and big end inner side, which is closed on, offers screw thread on cylinder.
As shown in figure 3, it is provided with long stent 20 and short support 16 on the base 7；The on both sides of the middle of long stent 20 is provided with solid
Determine block 25, top is provided with counterbore 22, and top offers positioning hole 21, and top inner side offers the step clearance for being available for observation；OK
Star gear 27 is connected by bolt with fixed block 25 and counterbore 22.
As shown in figure 3, offering screw thread at the top of the 5 long end of rotating bar, keyway is offered close to bottom, bottom is provided with prominent
Platform, convex end face are bonded with the outside of long stent 20.
As shown in figure 3, half-turn side end is evenly equipped with blind hole 19 on the ring gear 6, pin 23 through positioning hole 21 with
Blind hole 19 coordinates.
As shown in figure 3, the Y shape baffle plate 17 is placed on the long end of rotating bar 5, each top middle portion perforate respectively with planet tooth
Wheel 27 coordinates, and inner side is bonded with ring gear 6, planetary gear 27, central gear 26, ensures each gear in the same plane.
As shown in fig. 6, the both ends of packing element 11 are designed with the wedge-like opening 36 coordinated with wedge-shaped convex 34, side offers
Square orifice 38, square orifice 38 are surrounded by the dovetail groove 37 coordinated with trapezoidal convex 31.
As shown in fig. 7, described one end of square valve pocket 12 is provided with square groove 39, lateral array has many flow through holes.
As shown in fig. 7, described one end of square valve element 13 is provided with the cylindrical bar 40 with partial threads, cylindrical bar 40 may pass through
The preceding middle through-hole 35 of diaphragm seal 14 and drive end bearing bracket 2；The square lateral array of valve element 13 has many flow through holes, and it is placed in square valve pocket
Flow through hole, which is formed, both during 12 bottommost corresponds.
Specific embodiment：
Clamper is assembled into and treats working condition, feed line is connected in the top oil inlet 29 of cylinder 1 in parallel, and draining pipeline connects
In the bottom drain tap 32 of cylinder 1 in parallel；Two kinds of rock cores are inserted in the packing element 11 of 1 liang of working cavity of cylinder in parallel, cylinder 1 in parallel
Square through hole 30 in the volume control device that is made up of square valve pocket 12 and square valve element 13 of insertion, by drive end bearing bracket 2 and rear end
Lid 9 is fixed on 1 forward and backward both ends of cylinder in parallel by screw, screws in plug 3, is revolved plug 3 by the handling groove 15 on plug 3
Tightly, square valve element 13 is pushed into bottom and fine-tuning nut 4 is screwed on cylindrical bar 40, record fine-tuning nut 4 just presses close to front end
Corresponding dial numerical value, forward and backward plug connect displacing medium feed liquor pipeline and tapping line respectively during 2 end face of lid；Start
During experiment, fluid is injected by oil inlet 29, realizes the confined pressure control to rock core, displacing medium is imported by feed liquor pipeline, is flowed through each
Rock core and opening, finally flowed out from tapping line；After measurement result shows stabilization, passed through to adjust according to test situation and finely tuned
Nut 4 drives the relatively square valve pocket 12 of square valve element 13 to produce relative motion, so as to realize the control to displacing medium convection current flow
System；If volume control device is directly replaced by artificial square lithology, preceding diaphragm seal 14 is replaced with to non-porous rear diaphragm seal
10；When needing to measure inside rock core from influence result of the mutual convection current displacing medium under different relative gravity directions,
It can extract pin 23, rotary motion bar 5 realizes the function at cylinder 1 in parallel relative gravity inclination angle different from gravity direction generation,
The step clearance opened up by the top inner side of long stent 20 can observe the corresponding situation of positioning hole 21 and blind hole 19, be positioned
Put, insertion pin 23 can fixed angle, the inclination angle of cylinder 1 in parallel can realize horizontal positive and negative 90 ° of scope internal rotations；Off-test
After screw off both ends plug 3, with instrument eject rock core.
Claims (12)
1. a kind of parallel core clamper, including cylinder in parallel (1), ring gear (6), base (7), packing element (11), its feature exist
In：Cylinder (1) in parallel is connected by screw with drive end bearing bracket (2), rear end cap (9), preceding diaphragm seal (14) and rear diaphragm seal (10)
It is respectively placed in cylinder in parallel (1) forward and backward seal groove (28), plug (3) is connected with drive end bearing bracket (2) and rear end cap (9) by screw thread
Connect, packing element (11) is placed in cylinder in parallel (1) inside, and square valve element (13) small end is connected through a screw thread with fine-tuning nut (4), big end
Coordinate with square valve pocket (12), square valve pocket (12) is placed in the middle part of cylinder in parallel (1) in square through hole (30), cylinder (1) in parallel
With connecting rod (8) greatly end, contiguous block (18) be connected by screw, contiguous block (18) be welded in ring gear (6) periphery, ring gear (6) with
Planetary gear (27), central gear (26), which coordinate, forms planetary gears, central gear (26), Y shape baffle plate (17) and connecting rod
(8) small end end long with rotating bar (5) coordinates, and flat key (24) is placed in the long end keyway of rotating bar (5), rotating bar (5) and base
(7) long stent (20) and short support (16) on coordinate.
A kind of 2. parallel core clamper according to claim 1, it is characterised in that：The cylinder in parallel (1) is internal right
Title offers Liang Ge work chamber, and forward and backward both ends are provided with seal groove (28), and top and bottom offer fuel feed hole respectively
(29) and oil leak hole (32), middle part offer square through hole (30), and work chamber closes on wall and is provided with trapezoidal convex (31), ladder
Communication port (33) is offered in the middle part of shape convex (31).
A kind of 3. parallel core clamper according to claim 1, it is characterised in that：The drive end bearing bracket (2), rear end cap
(9) wedge-shaped convex (34) is provided with the top of cylinder in parallel (1) mating surface, the hollow bottom in wedge-shaped convex (34) middle part offers interior
Screw thread, drive end bearing bracket (2) middle part offer through hole (35), and through hole (35) periphery is printed on a circle dial.
A kind of 4. parallel core clamper according to claim 1, it is characterised in that：Fine-tuning nut (4) small end is set
Anti-slip tank is equipped with, it is big to hold periphery to be evenly equipped with teeth groove, coordinate with drive end bearing bracket surface middle part dial.
A kind of 5. parallel core clamper according to claim 1, it is characterised in that：Offered in the middle part of the plug (3)
Runner, small end coordinate with core sample end, and end face offers annular and cylindrical groove, and big end outside is evenly equipped with multiple handling
Groove (15), big end inner side, which is closed on, offers screw thread on cylinder.
A kind of 6. parallel core clamper according to claim 1, it is characterised in that：Length is provided with the base (7)
Support (20) and short support (16)；Long stent (20) on both sides of the middle is provided with fixed block (25), and top is provided with counterbore (22), and top is opened
Provided with positioning hole (21), top inner side offers the step clearance for being available for observation；Planetary gear (27) passes through bolt and fixation
Block (25) is connected with counterbore (22).
A kind of 7. parallel core clamper according to claim 1, it is characterised in that：At the top of the long end of rotating bar (5)
Screw thread is offered, offers keyway close to bottom, bottom is provided with convex, and convex end face on the outside of long stent (20) with being bonded.
A kind of 8. parallel core clamper according to claim 1, it is characterised in that：Half-turn one on the ring gear (6)
Side end is evenly equipped with blind hole (19), and pin (23) coordinates through positioning hole (21) and blind hole (19).
A kind of 9. parallel core clamper according to claim 1, it is characterised in that：The Y shape baffle plate (17), which is placed in, to be turned
On the long end of lever (5), each top middle portion perforate coordinates with planetary gear (27) respectively, inner side and ring gear (6), planetary gear
(27), central gear (26) is bonded, and ensures each gear in the same plane.
A kind of 10. parallel core clamper according to claim 1, it is characterised in that：Packing element (11) both ends are provided with
The wedge-like opening (36) coordinated with wedge-shaped convex (34), side offer square orifice (38), and square orifice (38) is surrounded by and ladder
The dovetail groove (37) that shape convex (31) coordinates.
A kind of 11. parallel core clamper according to claim 1, it is characterised in that：Described square valve pocket (12) one end
Square groove (39) is provided with, lateral array there are many flow through holes.
A kind of 12. parallel core clamper according to claim 1, it is characterised in that：Described square valve element (13) one end
The cylindrical bar (40) with partial threads is provided with, cylindrical bar (40) may pass through preceding diaphragm seal (14) and drive end bearing bracket (2) middle through-hole
(35)；Square valve element (13) lateral array has many flow through holes, and flow leads to both when it is placed in square valve pocket (12) bottommost
Hole, which is formed, to be corresponded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972943.4A CN107817201B (en) | 2017-10-18 | 2017-10-18 | A kind of parallel core clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972943.4A CN107817201B (en) | 2017-10-18 | 2017-10-18 | A kind of parallel core clamper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107817201A true CN107817201A (en) | 2018-03-20 |
| CN107817201B CN107817201B (en) | 2019-11-01 |
Family
ID=61607375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710972943.4A Expired - Fee Related CN107817201B (en) | 2017-10-18 | 2017-10-18 | A kind of parallel core clamper |
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| Country | Link |
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| CN (1) | CN107817201B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802338A (en) * | 2018-07-18 | 2018-11-13 | 华南理工大学 | A kind of rock core displacement device of achievable synchronous evaluation oil displacement efficiency |
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| US20130276554A1 (en) * | 2012-04-24 | 2013-10-24 | Halliburton Energy Services, Inc. | Multi-Fluid Injector Core Holder |
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| CN206190250U (en) * | 2016-11-28 | 2017-05-24 | 大庆航天三沃新技术产业有限责任公司 | Stratum inclination simulation rock core holder |
| CN206339468U (en) * | 2016-11-22 | 2017-07-18 | 西南石油大学 | A kind of new pair of rock core acid solution shunting experimental provision |
| CN206431024U (en) * | 2017-01-25 | 2017-08-22 | 重庆地质矿产研究院 | Experimental device capable of simultaneously measuring permeability of multiple compact rock samples |
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2017
- 2017-10-18 CN CN201710972943.4A patent/CN107817201B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130276554A1 (en) * | 2012-04-24 | 2013-10-24 | Halliburton Energy Services, Inc. | Multi-Fluid Injector Core Holder |
| US20150268314A1 (en) * | 2014-03-21 | 2015-09-24 | Daedalus Innovations Llc | Core Sample Holder |
| CN104989359A (en) * | 2015-07-03 | 2015-10-21 | 东北石油大学 | Non-homogeneity layering injection oriented fracturing experimental device |
| CN206339468U (en) * | 2016-11-22 | 2017-07-18 | 西南石油大学 | A kind of new pair of rock core acid solution shunting experimental provision |
| CN206190250U (en) * | 2016-11-28 | 2017-05-24 | 大庆航天三沃新技术产业有限责任公司 | Stratum inclination simulation rock core holder |
| CN206431024U (en) * | 2017-01-25 | 2017-08-22 | 重庆地质矿产研究院 | Experimental device capable of simultaneously measuring permeability of multiple compact rock samples |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108802338A (en) * | 2018-07-18 | 2018-11-13 | 华南理工大学 | A kind of rock core displacement device of achievable synchronous evaluation oil displacement efficiency |
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| CN107817201B (en) | 2019-11-01 |
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