CN107817201B - A kind of parallel core clamper - Google Patents
A kind of parallel core clamper Download PDFInfo
- Publication number
- CN107817201B CN107817201B CN201710972943.4A CN201710972943A CN107817201B CN 107817201 B CN107817201 B CN 107817201B CN 201710972943 A CN201710972943 A CN 201710972943A CN 107817201 B CN107817201 B CN 107817201B
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- Prior art keywords
- parallel
- cylinder
- hole
- gear
- core clamper
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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
-
- 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 clampers, including cylinder in parallel, ring gear, pedestal, packing element, it is characterized by: cylinder in parallel and drive end bearing bracket, rear end cap is connected by screw to, 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, rectangular spool small end is connected through a screw thread with fine-tuning nut, big end and rectangular valve pocket cooperate, square valve is placed in the middle part of cylinder in parallel in square through hole, cylinder in parallel and connecting rod tip, link block is connected by screw to, link block is welded in ring gear periphery, ring gear and planetary gear, central gear cooperation constitutes planetary gear mechanism, central gear, Y shape baffle and wrist-pin end of connecting rod cooperate with the long end of rotating bar, flat key is placed in the long end keyway of rotating bar, in rotating bar and pedestal Long stent and short support assorted.The present invention efficiently, quickly can simulate 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 rigs, and in particular to a kind of parallel core clamper.
Background technique
Core holding unit is with wide infrastructure component in development experiments, primarily directed in oil and natural gas
In geological prospecting and related development research, by being completed in core holding unit related to rock core to formation at target locations coring
The correlation tests such as permeability, porosity and other formation damages, 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, stablizes rock core, control is every
Simulated formation parameter simultaneously forms confined space, completes the test 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 heterogeneity and anisotropy influence to protrude, and each interlayer physical property difference is larger.Using conventional single rock core
The correlation tests such as water filling, the damage for clamping to simulate reservoir formation cannot reflect the flowing of medium between the layers well
Relationship, analog is poor, and measurement result deviation is big.The realization of the parallel core and heterogeneous core clamper that generally use now
Method is relatively simple, is only that the superposition of different physical property lithology is put into clamper, cannot be adjusted, make to relative influence parameter
With inconvenience.For this reason, it is necessary to design one kind for the relevant rock core clamping of interlayer and heterosphere stratum come simulated formation work
Condition accurately, easily measures formation physical parameters by adjusting flow and relative gravity direction, and change test lithology.
Summary of the invention
The purpose of the invention is to solve the above-mentioned problems, to propose 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, interior
Gear ring, pedestal, packing element, it is characterised in that: cylinder in parallel is connected by screw to 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, rectangular spool small end are connected through a screw thread with fine-tuning nut, and big end and rectangular valve pocket cooperate, and square valve is nested with
In in the square through hole of cylinder middle part in parallel, cylinder in parallel is connected by screw to connecting rod tip, link block, and link block is welded in internal tooth
Circle periphery, ring gear and planetary gear, central gear cooperation constitute planetary gear mechanism, and central gear, Y shape baffle and connecting rod are small
End cooperates with the long end of rotating bar, and flat key is placed in the long end keyway of rotating bar, the long stent and short bracket in rotating bar and pedestal
Cooperation.
The parallel connection cylinder is symmetrically opened up there are two work chamber, and front and rear 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 surface 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 equipped with wedge-shaped convex with the top of cylinder mating surface in parallel, and wedge-shaped convex middle part is hollow
Bottom end offers internal screw 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 non-slip groove, and big end periphery is evenly equipped with tooth socket, matches with dial in the middle part of drive end bearing bracket
It closes.
Runner is offered in the middle part of the plug, small end and core sample end cooperate, and end face offers annular and cylindricality
Groove, big end outside are evenly equipped with multiple handling slots, close on the inside of big end and offers screw thread on cylinder.
Long stent and short bracket are provided on the pedestal；Long stent on both sides of the middle is equipped with fixed block, and top is equipped with counterbore,
Top offers location hole, the step clearance that top inner side offers 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 equipped with convex, convex end face
It is bonded with long stent outside.
Half-turn side end is evenly equipped with blind hole on the ring gear, and pin passes through location hole and blind hole cooperates.
The Y shape baffle is placed on the long end of rotating bar, each top middle portion aperture respectively with planetary gear cooperate, inside with
Ring gear, planetary gear, central gear fitting, guarantee each gear in the same plane.
The packing element both ends design has the wedge-like opening with wedge-shaped convex cooperation, and side door offers square orifice, square orifice four
Week is equipped with the dovetail groove cooperated with trapezoidal convex.
Square groove is opened in described rectangular valve pocket one end, and there are many flow through-holes for lateral array.
Described rectangular spool one end is provided with the cylindrical bar of band part screw thread, and cylindrical bar may pass through preceding diaphragm seal and drive end bearing bracket
Middle through-hole；Rectangular spool lateral array is there are many flow through-hole, flow through-hole shape both when being placed in rectangular valve pocket bottommost
At one-to-one correspondence.
Beneficial effects of the present invention:
1. the clamper can be packed into the rock core of two kinds of different lithologies, for simulating the operating condition of interlayer Yu 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 adjusting is real with rectangular valve pocket and rectangular spool
Existing, by the flow parameter between the conveniently adjusted two kinds of rock cores of fine-tuning nut, the formation characteristics for not having to situation to research has very
Big effect；Flow regulator is changed to targetedly artificial core simultaneously, simulates for realizing more complicated ground environment.
3. using special construction packing element, be conducive to clamping and the inner sealing of rock core, realize by displacing medium with
The effect that confining pressure control oil liquid is effectively isolated.
4. can realize that cylinder in parallel is rotated with ring gear and is in different angle using planetary gear mechanism, in analog rock core
Portion's fluid media (medium) is in operating condition when different relative gravity directions at work, to obtain the different flowing laws of medium；Together
When herein the mechanism be deceleration mechanism, under the cooperation of various support constructions have laborsaving, reliable effect.
Detailed description of the invention
Fig. 1 is the assembly stereoscopic schematic diagram of parallel core clamper；
Fig. 2 is the assembly 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 stereoscopic schematic diagram of cylinder in parallel；
Fig. 5 is the stereoscopic schematic diagram of drive end bearing bracket；
Fig. 6 is the stereoscopic schematic diagram of packing element；
Fig. 7 is the cooperation stereoscopic schematic diagram of rectangular valve pocket, rectangular spool and fine-tuning nut；
In figure: 1- parallel connection cylinder；2- drive end bearing bracket；3- plug；4- fine-tuning nut；5- rotating bar；6- ring gear；7- pedestal；
8- connecting rod；9- rear end cap；Diaphragm seal after 10-；11- packing element；The rectangular valve pocket of 12-；The rectangular spool of 13-；Diaphragm seal before 14-；15- dress
Unload slot；The short bracket of 16-；17-Y shape baffle；18- link block；19- blind hole；20- long stent；21- location hole；22- counterbore；23- pin
Nail；24- flat key；25- fixed block；26- central gear；27- planetary gear；28- seal groove；29- oil inlet；30- square through hole；
The trapezoidal convex of 31-；32- drain tap；33- communication port；34- wedge shape convex；35- through-hole；36- wedge-like opening；37- dovetail groove；38-
Square orifice；39- square groove；40- cylindrical bar.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As shown in Figs 1-4, a kind of parallel core clamper, including cylinder in parallel 1, ring gear 6, pedestal 7, packing element 11,
Be characterized in that: cylinder 1 in parallel is connected by screw to 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, rectangular 13 small end of spool is connected through a screw thread with fine-tuning nut 4, and big end and rectangular valve pocket 12 cooperate, square valve
Set 12 is placed in 1 middle part square through hole 30 of cylinder in parallel, and cylinder 1 in parallel is connected by screw to 8 big end of connecting rod, link block 18,
Link block 18 is welded in 6 periphery of ring gear, and ring gear 6 and planetary gear 27, the cooperation of central gear 26 constitute planetary gear mechanism, in
Heart gear 26, Y shape baffle 17 and 8 small end of connecting rod cooperate with the long end of rotating bar 5, and flat key 24 is placed in the long end keyway of rotating bar 5,
Long stent 20 and short bracket 16 in rotating bar 5 and pedestal 7 cooperate.
As shown in figure 4, parallel connection 1 internal symmetry of cylinder is opened up, there are two work chamber, and front and rear 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, offers communication port 33 in the middle part of trapezoidal convex 31.
As shown in Figure 1 and Figure 5, the drive end bearing bracket 2, rear end cap 9 are equipped with wedge-shaped convex with the top of 1 mating surface of cylinder in parallel
34, the wedge-shaped 34 hollow bottom end in middle part of convex offers internal screw thread, through-hole 35 is offered in the middle part of drive end bearing bracket 2,35 periphery of through-hole is printed on
One circle dial.
As shown in Figure 1,4 small end of fine-tuning nut is provided with non-slip groove, big end periphery is evenly equipped with tooth socket, with drive end bearing bracket table
The cooperation of Middle face dial.
As shown in Fig. 2, offering runner in the middle part of the plug 3, small end and core sample end cooperate, and end face offers
Annular and cylindrical groove, big end outside are evenly equipped with multiple handling slots 15, close on the inside of big end and offers screw thread on cylinder.
As shown in figure 3, being provided with long stent 20 and short bracket 16 on the pedestal 7；20 on both sides of the middle of long stent is equipped with solid
Determine block 25, top is equipped with counterbore 22, and top offers location hole 21, the step clearance that top inner side offers for observation；Row
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 long end of the rotating bar 5, keyway is offered close to bottom, bottom is equipped with prominent
It is bonded on the outside of platform, convex end face and 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 pass through location hole 21 with
Blind hole 19 cooperates.
As shown in figure 3, the Y shape baffle 17 is placed on the long end of rotating bar 5, each top middle portion aperture respectively with planet tooth
27 cooperation of wheel, inside are bonded with ring gear 6, planetary gear 27, central gear 26, guarantee each gear in the same plane.
As shown in fig. 6,11 both ends of the packing element design has the wedge-like opening 36 cooperated with wedge-shaped convex 34, side is offered
Square orifice 38, square orifice 38 are surrounded by the dovetail groove 37 with the cooperation of trapezoidal convex 31.
As shown in fig. 7, described 12 one end of rectangular valve pocket is provided with square groove 39, there are many flow through-holes for lateral array.
As shown in fig. 7, described 13 one end of rectangular spool is provided with the cylindrical bar 40 of band part screw thread, cylindrical bar 40 be may pass through
2 middle through-hole 35 of preceding diaphragm seal 14 and drive end bearing bracket；There are many flow through-holes for rectangular 13 lateral array of spool, are placed in rectangular valve pocket
Flow through-hole, which is formed, both when 12 bottommost corresponds.
Specific embodiment:
Clamper is assembled into working condition, feed line is connected in 1 top oil inlet 29 of cylinder in parallel, and draining pipeline connects
In 1 lower part drain tap 32 of cylinder in parallel；Two kinds of rock cores are inserted into 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 of rectangular valve pocket 12 and rectangular spool 13 of insertion, by drive end bearing bracket 2 and rear end
Lid 9 is fixed on 1 front and rear ends of cylinder in parallel by screw, screws in plug 3, is revolved plug 3 by the handling slot 15 on plug 3
Tightly, rectangular spool 13 is pushed into bottom and screws in fine-tuning nut 4 on cylindrical bar 40, record fine-tuning nut 4 just close to front end
Corresponding dial numerical value, forward and backward plug are separately connected displacing medium feed liquor pipeline and tapping line when 2 end face of lid；Start
When test, oil liquid is injected by oil inlet 29, realizes and the confining pressure of rock core is controlled, displacing medium is imported by feed liquor pipeline, is flowed through each
Rock core and recirculation hole are finally flowed out from tapping line；After measurement result, which is shown, to be stablized, according to test situation by adjusting fine tuning
Nut 4 drives the relatively rectangular valve pocket 12 of rectangular spool 13 to generate relative motion, to realize the control to displacing medium convection current flow
System；If volume control device is directly replaced by artificial rectangular 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,
Pin 23 can be extracted, rotary motion bar 5 generates the function at different relative gravity inclination angles to realize cylinder 1 in parallel from gravity direction,
The correspondence situation that location hole 21 and blind hole 19 can be observed by the step clearance that 20 top inner side of long stent opens up, is positioned
Set, insertion pin 23 can fixed angle, the inclination angle of cylinder 1 in parallel can realize rotation in horizontal positive and negative 90 °；Off-test
Both ends plug 3 under back spin ejects rock core with tool.
Claims (12)
1. a kind of parallel core clamper, including cylinder in parallel (1), ring gear (6), pedestal (7), packing element (11), feature exists
In: cylinder (1) in parallel is connected by screw to 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) and drive end bearing bracket (2) and rear end cap (9) are connected by screw thread
It connects, packing element (11) is placed in cylinder in parallel (1) inside, and rectangular spool (13) small end is connected through a screw thread with fine-tuning nut (4), big end
Cooperate with rectangular valve pocket (12), rectangular valve pocket (12) is placed in the middle part of cylinder in parallel (1) in square through hole (30), cylinder (1) in parallel
Be connected by screw to connecting rod (8) big end, link block (18), link block (18) be welded in ring gear (6) periphery, ring gear (6) with
Planetary gear (27), central gear (26) cooperation constitute planetary gear mechanism, central gear (26), Y shape baffle (17) and connecting rod
(8) small end cooperates with the long end of rotating bar (5), and flat key (24) is placed in the long end keyway of rotating bar (5), rotating bar (5) and pedestal
(7) long stent (20) and short bracket (16) cooperation on.
2. a kind of parallel core clamper according to claim 1, it is characterised in that: the parallel connection cylinder (1) is internal right
Title is opened up there are two work chamber, and front and rear ends are provided with seal groove (28), and top and bottom offer fuel feed hole respectively
(29) it is offered square through hole (30) with oil leak hole (32), middle part, work chamber closes on wall surface and is provided with trapezoidal convex (31), ladder
Communication port (33) are offered in the middle part of shape convex (31).
3. a kind of 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 equipped with the top of cylinder in parallel (1) mating surface, hollow bottom end offers interior in the middle part of wedge-shaped convex (34)
Screw thread, drive end bearing bracket (2) middle part offer through-hole (35), and through-hole (35) periphery is printed on a circle dial.
4. a kind of parallel core clamper according to claim 1, it is characterised in that: fine-tuning nut (4) small end is set
It is equipped with non-slip groove, big end periphery is evenly equipped with tooth socket, cooperates with drive end bearing bracket surface middle part dial.
5. a kind of parallel core clamper according to claim 1, it is characterised in that: offered in the middle part of the plug (3)
Runner, small end and core sample end cooperate, and end face offers annular and cylindrical groove, is evenly equipped with multiple handling on the outside of big end
Slot (15), big end inside, which is closed on, offers screw thread on cylinder.
6. a kind of parallel core clamper according to claim 1, it is characterised in that: be provided with length on the pedestal (7)
Bracket (20) and short bracket (16)；Long stent (20) on both sides of the middle is equipped with fixed block (25), and top is equipped with counterbore (22), and top is opened
Equipped with location hole (21), the step clearance that top inner side offers for observation；Planetary gear (27) passes through bolt and fixation
Block (25) is connected with counterbore (22).
7. a kind of 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 equipped with convex, is bonded on the outside of convex end face and long stent (20).
8. a kind of 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) passes through location hole (21) and blind hole (19) and cooperates.
9. a kind of parallel core clamper according to claim 1, it is characterised in that: the Y shape baffle (17), which is placed in, to be turned
On the long end of lever (5), each top middle portion aperture of Y shape baffle (17) cooperates with each planetary gear (27) mesoporous respectively, Y shape baffle
(17) inside is bonded with ring gear (6), planetary gear (27), central gear (26), guarantees each gear in the same plane.
10. a kind of parallel core clamper according to claim 1, it is characterised in that: packing element (11) both ends are equipped with
With the wedge-like opening (36) of wedge-shaped convex (34) cooperation, side is offered square orifice (38), and square orifice (38) is surrounded by and ladder
The dovetail groove (37) of shape convex (31) cooperation.
11. a kind of parallel core clamper according to claim 1, it is characterised in that: described rectangular valve pocket (12) one end
It is provided with square groove (39), there are many flow through-holes for lateral array.
12. a kind of parallel core clamper according to claim 1, it is characterised in that: described rectangular spool (13) one end
It is provided with the cylindrical bar (40) of band part screw thread, cylindrical bar (40) passes through preceding diaphragm seal (14) and drive end bearing bracket (2) middle through-hole
(35)；There are many flow through-holes for rectangular spool (13) lateral array, and flow leads to both when being placed in rectangular 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 CN107817201A (en) | 2018-03-20 |
| CN107817201B true CN107817201B (en) | 2019-11-01 |
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|---|---|---|---|
| CN201710972943.4A Expired - Fee Related CN107817201B (en) | 2017-10-18 | 2017-10-18 | A kind of parallel core clamper |
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| CN (1) | CN107817201B (en) |
Families Citing this family (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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989359A (en) * | 2015-07-03 | 2015-10-21 | 东北石油大学 | Non-homogeneity layering injection oriented fracturing experimental device |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9051800B2 (en) * | 2012-04-24 | 2015-06-09 | Halliburton Energy Services, Inc. | Multi-fluid injector core holder |
| BR112016021536B1 (en) * | 2014-03-21 | 2022-06-14 | Daedalus Innovations Llc | CORE SAMPLE HOLDER FOR USE WITH A NUCLEAR MAGNETIC RESONANCE SPECTROMETER OR MAGNETIC RESONANCE IMAGING INSTRUMENT |
-
2017
- 2017-10-18 CN CN201710972943.4A patent/CN107817201B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN107817201A (en) | 2018-03-20 |
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Granted publication date: 20191101 Termination date: 20201018 |