CN108507880A - A kind of all-hydraulic three-chamber side pressure instrument probe - Google Patents
A kind of all-hydraulic three-chamber side pressure instrument probe Download PDFInfo
- Publication number
- CN108507880A CN108507880A CN201810350850.2A CN201810350850A CN108507880A CN 108507880 A CN108507880 A CN 108507880A CN 201810350850 A CN201810350850 A CN 201810350850A CN 108507880 A CN108507880 A CN 108507880A
- Authority
- CN
- China
- Prior art keywords
- chamber
- water inlet
- branch line
- coil
- pipe road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
The present invention relates to pressure instrument probes by a kind of all-hydraulic three-chamber,Including shell,A central tube coaxial with the shell is equipped at the casing center,The central tube is fixedly connected by several parallel dead rings with the shell,The center pipe outer wall below the dead ring of bottom is equipped with upper protection chamber successively from top to bottom,Measure chamber and lower protection chamber,The central tube is equipped with two-bit triplet solenoid valve,The connection of two-bit triplet solenoid valve upper end is equipped with water inlet pipe,Lower end connection is equipped with the first branch line and second branched pipe road,First branch line is connected to the upper protection chamber and the lower protection chamber,The second branched pipe road is connected to the measurement chamber,Realize that the pressure to protection chamber and measurement chamber applies simultaneously using a water inlet pipe,The random switching on the first branch line and second branched pipe road can be realized using two-bit triplet solenoid valve,It simple operation and works well,Reduce cost,Improve working efficiency and working strength.
Description
Technical field
The present invention relates to rock-soil material test equipment technologies, and in particular to a kind of all-hydraulic three-chamber side pressure instrument spy
Head.
Background technology
With the quickening of China's infrastructure construction and Development of Urbanization, some large-engineerings and high-rise increasingly increase
More, being capable of providing the survey of accurate, reliable ground physical mechanics parameter of rock and soil becomes particularly important.Lateral loading test is one
Kind horizontal loading testing experiment in situ, principle is to utilize an expandable round other depressor in the borehole, in vertical brill
It pressurizes to it in hole, so that the hole wall soil body (soft rock) is deformed by the expansion of other depressor, so that it is determined that the soil body (soft rock) stress-strain
Feature.It is existing to side pressure instrument probe and use aspect both at home and abroad at present that compared with systematic research, but in following several respects, there is also not
Foot：
(1) pressure instrument probe precision is low by single-chamber room, restricted application.As shown in figure 4, pressure appropriate can cause side
Press the more uniform deformation of instrument outer membrane；But pressure it is larger when, depressor both ends can extend outwardly by single-chamber room, cause chamber volume abnormal
Deformation so may result in us and cannot get true volume change, and this phenomenon becomes with the hardness of soil layer
It becomes more serious greatly, to bring certain error to the calculating of the data such as Rock And Soil modulus, yield pressure, limiting pressure.
(2) pressure instrument is popped one's head in as shown in figure 5, two-tube compression system is generally used, such as Fig. 3 institutes by three-chamber more universal at present
Show, including upper protection chamber, measure chamber and lower protection chamber, when on-test first gives upper protection chamber and lower protection chamber water-filling application water
Then pressure water-filling and applies hydraulic pressure into intermediate measurement chamber, upper protection chamber and lower protection chamber can play the role of compatible deformation,
Extend outwardly to slow down the other depressor outer membrane both ends by single-chamber room during pressure instrument probe experiments and chamber volume is caused to distort
The case where.But this square law device is complicated, complicated for operation, cost is higher, practical exploration onsite application gets up time-consuming and laborious.
Invention content
In view of this, pressure instrument probe by a kind of all-hydraulic three-chamber of disclosure of the invention, can greatly grasp short form test
Make, reduce experimentation cost, promotes the working efficiency and working strength of the prospecting of site foundation physical mechanics parameter of rock and soil.
Pressure instrument is popped one's head in by a kind of all-hydraulic three-chamber of offer of the present invention, including shell, and one is equipped at the casing center
The coaxial central tube with the shell, the central tube is fixedly connected by several parallel dead rings with the shell, described
Central tube sealed bottom is located at the center pipe outer wall below the dead ring of bottom and is equipped on one successively from top to bottom
Protection chamber, one measure chamber and once protect chamber, and the central tube is equipped with one or two position-3-way solenoid valve, the two-bit triplet electromagnetism
Valve includes two water outlets positioned at the water inlet end of upper end and positioned at lower end, and the water inlet end, which is connected to, is equipped with a water inlet pipe, two
The water outlet is respectively communicated with equipped with one first branch line and a second branched pipe road, first branch line with it is described on
Protection chamber is connected to the lower protection chamber, and the second branched pipe road is connected to the measurement chamber.
Further, the two-bit triplet solenoid valve includes a valve body, and a closed chamber is equipped in the valve body, described
It is equipped with the water inlet through the valve body at the top of closed chamber, the water inlet pipe is installed in the water inlet, it is described close
Closed chamber bottom symmetrical is equipped with first outlet and second outlet through the valve body, is fixedly mounted in the first outlet
The first branch line is stated, the second branched pipe road is installed in the second outlet, one is equipped in the closed chamber first
Pilot valve, the pilot valve can move left and right in the closed chamber, realize first branch line and the second branched pipe
The switched conductive on road and the water inlet pipe.
Further, the pilot valve includes coil, shaft, piston and spring, and the coil is vertically placed to the valve sheet
In vivo, be equipped with a horizontal groove in the opposite valve body side wall of the coil direction, described shaft one end horizontal through
The valve body madial wall is moveably mounted by spring in the coil, and the shaft other end passes across described closed
For chamber removable installation in the groove, a signal control line one end is electrically connected the coil, and the other end passes through the valve body
It is electrically connected with controller, the piston is installed in the shaft, when the coil obtains electric, the shaft stress overcomes the bullet
Spring force is moved to coil direction, is driven the piston to close the second branched pipe road, is opened simultaneously first branched pipe
Road, when the coil must not be electric, the spring force pushes the shaft to be moved to groove direction, and the piston is driven to close
First branch line opens simultaneously the second branched pipe road.
Further, the closed chamber includes the intake antrum being located above and underlying mixing chamber, the mixing chamber
Longitudinal cross-section it is identical as the longitudinal cross-section of the piston, the cross-sectional area of the piston is more than first branch line or the
The cross-sectional area of two branch lines.
Further, the two-bit triplet solenoid valve be cylinder, the two-bit triplet solenoid valve a diameter of 45 ±
0.5mm, length 90mm, a diameter of 2.5mm of the water inlet pipe.
The advantageous effect that technical solution provided by the invention is brought is：
1, the existing other air inlet for pressing instrument probe and two pipelines of water inlet are replaced using a water inlet pipe, that is, does not have to additional gas
Pressure control system only realizes that the pressure to protection chamber and measurement chamber applies simultaneously with a water pressure control system, and structure is simpler
List, cost is lower and practicability is stronger.
2, water inlet pipe is connected among Liang Ge branches outlet pipes with two-bit triplet solenoid valve, the first branch line of realization and the
The random switching of two branch lines, operate enhanced convenience, protection chamber and lower protection chamber in the connection of the first branch line, the
Two branch lines are connected to test chamber, obtain electric and dead electricity by controller control coil, so that it may respectively to upper protection chamber and lower protection
The water-filling of chamber and test chamber presses, and simple operation and works well, and greatly simplifies test operation, reduces experimentation cost,
Improve the working efficiency and working strength of the prospecting of site foundation physical mechanics parameter of rock and soil.
Description of the drawings
Fig. 1 is the structural schematic diagram of pressure instrument probe by a kind of all-hydraulic three-chamber of the present invention；
Fig. 2 is the sectional view of two-bit triplet solenoid valve in the present invention；
Fig. 3 is the two-tube compression system structure chart of other pressure instrument in the prior art；
State diagram when Fig. 4 is the different pressures that single-chamber room side pressure instrument is popped one's head in the prior art；
Fig. 5 is the structure chart of three-chamber side pressure instrument probe in the prior art.
In figure：
1, shell 2, central tube 3, dead ring 4, upper protection chamber 5, measurement chamber 6, lower protection chamber 7, two-bit triplet electricity
Magnet valve 71, valve body 72, closed chamber 73, water inlet 74, first outlet 75, second outlet 8,9, first points of water inlet pipe
Bye-pass 10, second branched pipe road 11, pilot valve 111, coil 112, shaft 113, piston 114, spring 12, groove
13, control signal wire.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
It please refers to Fig.1 and Fig. 2, embodiment of the invention discloses that pressure instrument probe by a kind of all-hydraulic three-chamber, including shell
Body 1, is equipped with a central tube 2 coaxial with the shell 1 at 1 center of the shell, and the central tube 2 passes through several parallel tight
Gu ring 3 is fixedly connected with the shell 1,2 sealed bottom of the central tube, can make to may not flow into impurity in the central tube 2, such as
Water, soil or drift sand etc., ensure that will not be influenced in the probe use by external environment.It is tight described in the present embodiment
Gu ring 3 is two disposed in parallel, be located at 2 outer wall of the central tube of the lower section of the dead ring 3 of bottom from top to bottom according to
Secondary be equipped on one protects chamber 4, one to measure chamber 5 and chamber 6, the central tube 2 is once protected to be equipped with one or two position-3-way solenoid valve 7,
The two-bit triplet solenoid valve 7 is cylinder, can be easily installed on the central tube 2 very much, the two-bit triplet solenoid valve 7
2 position of the central tube among two dead ring 3, the two-bit triplet solenoid valve 7 includes a valve body 71, described
A closed chamber 72 is equipped in valve body 71, the closed chamber 72 includes the intake antrum being located above and underlying mixing chamber,
It is equipped with the water inlet 73 through the valve body 71 at the top of the closed chamber, a water inlet pipe 8 is fixedly mounted in the water inlet 73,
72 bottom symmetrical of the closed chamber is equipped with first outlet 74 and second outlet 75 through the valve body 71, the first outlet
The first branch line 9 is fixedly mounted in 74, second branched pipe road 10, first branch is fixedly mounted in the second outlet 75
9 other end of pipeline is connected to the upper protection chamber 4 and the lower protection chamber 6 respectively, 10 other end of second branched pipe road with
The measurement chamber 5 is connected to, and the water come in this way from water inlet pipe 8 is introduced into intake antrum, is then selectively connect in mixing chamber
It is discharged after leading to first branch line 9 or the second branched pipe road 10.
The diameter of the two-bit triplet solenoid valve 7 can be used 45 ± 0.5mm, a height of 90mm, the water inlet pipe 8 it is a diameter of
2.5mm, the first outlet 74 and the second outlet 75 are located at 7 bottom of two-bit triplet solenoid valve.
A pilot valve 11 is equipped in the closed chamber 72, the pilot valve 11 can move left and right in the closed chamber 72,
Realize the switched conductive of first branch line 9 and the second branched pipe road 10 and the water inlet pipe 8, the pilot valve 11
Including coil 111, shaft 112, piston 113 and spring 114, the coil 111 is vertically placed in 71 side wall of the valve body, institute
It states and is equipped with a horizontal groove 12 in opposite 71 side wall of the valve body in 111 direction of coil, 112 one end level of the shaft is worn
It crosses 71 inner wall of the valve body to be moveably mounted in the coil 111 by spring 114,112 other end of the shaft is horizontal
Across 72 removable installation of the closed chamber in the groove 12, the groove 12 matches with the shaft 112, the groove
12 diameter is slightly larger than the diameter of the shaft 112, and thus the shaft 112 can be moved along axis direction in groove 12,
One signal control line, 13 one end is electrically connected the coil 111, and the other end is electrically connected with controller across the valve body 71, passes through
Controller come control the coil 111 electric and power-off, and then realize movement of the shaft 112 on axis direction, institute
It states and two pistons 113 is installed side by side in shaft 112, the longitudinal cross-section of the mixing chamber and the longitudinal direction of the piston 113 are cut
Face is identical, and the cross-sectional area of the piston 113 is more than first branch line 9 or the cross-sectional area on second branched pipe road 10,
When controller, which controls the coil 111, obtains electric, 112 stress of the shaft overcomes 114 elastic force of the spring to 111 direction of coil
It is mobile, the filling of the piston 113 is driven positioned at the mixing chamber in 111 direction of coil and completely closes the second branched pipe road 10,
First branch line 9 is opened simultaneously, thus water inlet pipe 8 and the conducting of the first branch line 9, can protect chamber 4 and lower guarantor upwards
It protects water-filling in chamber 6 and presses, when reaching certain pressure, 111 dead electricity of controller control coil, the spring 114 passes through itself
Elastic force push the shaft 112 to be moved to 12 direction of groove, drive the filling of the piston 113 to be located at 111 opposite direction of coil
Mixing chamber and completely close first branch line 9, open simultaneously the second branched pipe road 10, thus 8 He of water inlet pipe
Second branched pipe road 10 is connected, and can apply hydraulic pressure to the test chamber 5, reach certain pressure value, measure a pressures cycle
And then it is secondary by controller control coil 111 it is electric, upwards protect chamber 4 and lower protection chamber 6 application hydraulic pressure, reach target pressure
Again by 111 dead electricity of controller control coil after force value, and so on, realize the test for carrying out different pressures cycle.
The existing other air inlet for pressing instrument probe and two pipelines of water inlet are replaced by a water inlet pipe 8, by one described two
With three-way magnetic valve 7, only it can be realized simultaneously to upper protection chamber 4, lower protection chamber 6 with a water pressure control system and be measured chamber
5 pressure applies, and greatly simplifies test operation, reduces experimentation cost, improves site foundation ground physical mechanics ginseng
The working efficiency and working strength of number prospecting.
It is described in the present invention that specific embodiments are merely illustrative of the spirit of the present invention.Technology belonging to the present invention
The technical staff in field can make various modifications or additions to the described embodiments or by a similar method
It substitutes, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.The above institute
Only presently preferred embodiments of the present invention is stated, is not intended to limit the invention, all within the spirits and principles of the present invention, made by
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (6)
1. pressure instrument is popped one's head in by a kind of all-hydraulic three-chamber, including shell, it is coaxial with the shell to be equipped with one at the casing center
Central tube, the central tube is fixedly connected by several parallel dead rings with the shell, it is characterised in that：
The central tube sealed bottom is located at the center pipe outer wall below the dead ring of bottom from top to bottom successively
Chamber is protected equipped with protection chamber, a measurement chamber on one and once, the central tube is equipped with one or two position-3-way solenoid valve, described two
Three-way magnetic valve includes two water outlets positioned at the water inlet end of upper end and positioned at lower end, and the water inlet end connection is equipped with a water inlet
Pipe, two water outlets are respectively communicated with equipped with one first branch line and a second branched pipe road, first branch line
It is connected to the upper protection chamber and the lower protection chamber, the second branched pipe road is connected to the measurement chamber.
2. pressure instrument probe by all-hydraulic three-chamber as described in claim 1, it is characterised in that：The two-bit triplet solenoid valve includes
One valve body, the valve body is interior to be equipped with a closed chamber, and the water inlet through the valve body, institute are equipped at the top of the closed chamber
It states and is installed with the water inlet pipe in water inlet, the closed chamber bottom symmetrical is equipped with the first outlet through the valve body
And second outlet, first branch line is installed in the first outlet, is installed in the second outlet
The second branched pipe road, the closed chamber is interior to be equipped with a pilot valve, and the pilot valve can move left and right in the closed chamber,
Realize the switched conductive of first branch line and the second branched pipe road and the water inlet pipe.
3. pressure instrument probe by all-hydraulic three-chamber as claimed in claim 2, it is characterised in that：The pilot valve includes coil, turns
Axis, piston and spring, the coil are vertically placed in the valve body, in the opposite valve body side wall of the coil direction
Equipped with a horizontal groove, described shaft one end is moveably mounted by spring into institute horizontal through the valve body madial wall
It states in coil, the shaft other end passes across the closed chamber removable installation in the groove, a signal control line one
End is electrically connected the coil, and the other end is electrically connected with controller across the valve body, the piston is installed in the shaft, when
When the coil obtains electric, the shaft stress overcomes the spring force to be moved to coil direction, and the piston is driven to close institute
Second branched pipe road is stated, first branch line is opened simultaneously, when the coil must not be electric, the spring force pushes institute
It states shaft to move to groove direction, drives the piston to close first branch line, open simultaneously the second branched pipe
Road.
4. pressure instrument probe by all-hydraulic three-chamber as claimed in claim 3, it is characterised in that：The closed chamber includes being located above
Intake antrum and underlying mixing chamber, the longitudinal cross-section of the mixing chamber is identical as the longitudinal cross-section of the piston, described
The cross-sectional area of piston is more than first branch line or the cross-sectional area on second branched pipe road.
5. the pressure instrument probe by all-hydraulic three-chamber as described in claim any one of 2-4, it is characterised in that：The two-bit triplet electricity
Magnet valve is cylinder.
6. pressure instrument probe by all-hydraulic three-chamber as claimed in claim 5, it is characterised in that：The two-bit triplet solenoid valve it is straight
Diameter is 45 ± 0.5mm, length 90mm, a diameter of 2.5mm of the water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350850.2A CN108507880B (en) | 2018-04-18 | 2018-04-18 | Full-hydraulic three-cavity type lateral pressure instrument probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350850.2A CN108507880B (en) | 2018-04-18 | 2018-04-18 | Full-hydraulic three-cavity type lateral pressure instrument probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108507880A true CN108507880A (en) | 2018-09-07 |
| CN108507880B CN108507880B (en) | 2023-03-28 |
Family
ID=63382387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810350850.2A Active CN108507880B (en) | 2018-04-18 | 2018-04-18 | Full-hydraulic three-cavity type lateral pressure instrument probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507880B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799144A (en) * | 2019-03-08 | 2019-05-24 | 曹增国 | A kind of rock-soil layer original position side compression testing device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037556Y (en) * | 2007-02-01 | 2008-03-19 | 武汉广远经济发展有限责任公司 | Self-acting two-position three-way magnetic valve for large heavy caliber |
| CN101280682A (en) * | 2008-05-30 | 2008-10-08 | 陈奇 | Complete hydraulic self-drilling type side pressure equipment |
| US20100198547A1 (en) * | 2008-11-03 | 2010-08-05 | Woods Hole Oceanographic Institution | Differential pressure systems and methods for measuring hydraulic parameters across surface water-aquifer interfaces |
| CN102494853A (en) * | 2011-11-25 | 2012-06-13 | 上海大学 | Packer high temperature high pressure hydraulic continuous pressurization test device |
| CN103016007A (en) * | 2012-12-05 | 2013-04-03 | 山东科技大学 | Electronically controlled single-loop water-plugging overburden strata fracture detection method |
| CN203572747U (en) * | 2013-10-16 | 2014-04-30 | 中水东北勘测设计研究有限责任公司 | Hydraulic-pressure-type high-pressure pressurized water tester with double plugs |
| CN203614839U (en) * | 2013-12-05 | 2014-05-28 | 吴忠仪表有限责任公司 | Automatic pressure measurement three-way reversing valve |
| CN105041780A (en) * | 2015-06-24 | 2015-11-11 | 上海大学 | Hydraulic test system device for down-hole packer |
-
2018
- 2018-04-18 CN CN201810350850.2A patent/CN108507880B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037556Y (en) * | 2007-02-01 | 2008-03-19 | 武汉广远经济发展有限责任公司 | Self-acting two-position three-way magnetic valve for large heavy caliber |
| CN101280682A (en) * | 2008-05-30 | 2008-10-08 | 陈奇 | Complete hydraulic self-drilling type side pressure equipment |
| US20100198547A1 (en) * | 2008-11-03 | 2010-08-05 | Woods Hole Oceanographic Institution | Differential pressure systems and methods for measuring hydraulic parameters across surface water-aquifer interfaces |
| CN102494853A (en) * | 2011-11-25 | 2012-06-13 | 上海大学 | Packer high temperature high pressure hydraulic continuous pressurization test device |
| CN103016007A (en) * | 2012-12-05 | 2013-04-03 | 山东科技大学 | Electronically controlled single-loop water-plugging overburden strata fracture detection method |
| CN203572747U (en) * | 2013-10-16 | 2014-04-30 | 中水东北勘测设计研究有限责任公司 | Hydraulic-pressure-type high-pressure pressurized water tester with double plugs |
| CN203614839U (en) * | 2013-12-05 | 2014-05-28 | 吴忠仪表有限责任公司 | Automatic pressure measurement three-way reversing valve |
| CN105041780A (en) * | 2015-06-24 | 2015-11-11 | 上海大学 | Hydraulic test system device for down-hole packer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799144A (en) * | 2019-03-08 | 2019-05-24 | 曹增国 | A kind of rock-soil layer original position side compression testing device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108507880B (en) | 2023-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018113063A1 (en) | High pressure true triaxial hard rock constant-temperature aging cracking testing device and method | |
| CN101825555B (en) | Device for testing axial loading/unloading gas permeability of coal | |
| US20200003751A1 (en) | Laboratory device and method for simulating cement sheath consolidation in frozen soil strata | |
| CN106644306B (en) | Bottom plate Mining failure band is segmented observation system | |
| CN108872530A (en) | A kind of full-scale model test device for simulating asymmetric small-clear-distance tunnel digging process | |
| CN108896381A (en) | A kind of Rock Mechanics Test device | |
| CN201273190Y (en) | Triaxial-stress multi-pressure test point rock core reservoir simulation device | |
| CN103115843A (en) | In situ measurement method for rock mass gas permeability | |
| CN109611085B (en) | Hydraulic fracturing coal-series reservoir fracture extension form simulation device and simulation method thereof | |
| CN108387499B (en) | Rock underground in-situ multi-parameter anisotropy measuring device | |
| CN203756119U (en) | Sleeve subassembly for simulated cementation test | |
| CN106595986A (en) | Bottom plate mining failure zone segmental observation method | |
| CN112485125A (en) | Tunnel model test device and method capable of controlling soil loss rate | |
| CN105424331A (en) | Device and method for mechanical sealing evaluation of cement ring when large fracturing is performed | |
| CN108507880A (en) | A kind of all-hydraulic three-chamber side pressure instrument probe | |
| CN208254964U (en) | A kind of all-hydraulic three-chamber side pressure instrument probe | |
| CN109991120A (en) | Rock covers isothermal adsorption/desorption and displacement test equipment and method under press strip part | |
| CN110056335A (en) | Three axis multiple cracks hydraulic fracturing experiments devices of one kind and experimental method | |
| CN109632502A (en) | Multi-joint experimental system and its experimental method | |
| CN109357953A (en) | A kind of rock core test device tested for three axis of high temperature and pressure and hydraulic fracturing | |
| CN209145580U (en) | A kind of three axis multiple cracks hydraulic fracturing experiments devices | |
| CN104863582B (en) | A kind of full current collecting umbrella for oil well liquid-producing section plane test | |
| CN207516210U (en) | Porosity and permeability test device under a kind of simulation stratum condition | |
| CN207231976U (en) | A kind of different temperatures, the lower rock permeability factor detection device of pressure effect | |
| CN206161484U (en) | Impermeability test appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |