CN106093079B - A kind of nonmetallic core holding unit of super-pressure - Google Patents
A kind of nonmetallic core holding unit of super-pressure Download PDFInfo
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- CN106093079B CN106093079B CN201610697866.1A CN201610697866A CN106093079B CN 106093079 B CN106093079 B CN 106093079B CN 201610697866 A CN201610697866 A CN 201610697866A CN 106093079 B CN106093079 B CN 106093079B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
- G01N24/081—Making measurements of geologic samples, e.g. measurements of moisture, pH, porosity, permeability, tortuosity or viscosity
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Abstract
The present invention relates to a kind of nonmetallic core holding unit of super-pressure, innovative point is: including clamp body, end socket, end socket pressure cap, rock core, rock core plug, rock core plug plug and adjusting pressure cap;Clamp body and interior rock core plug both ends while meeting the operating condition of CT scan and Magnetic resonance imaging using non-metallic material use the structure of metal, are not damaged convenient for cylinder when the processing of components interface and the multiple disassembly of satisfaction and assembly;Pressure value can be up to 100MPa;The design not only increases experimental pressure, and on the basis of ensure that leakproofness, pressure-resistant performance is more preferable, in structure also more rationally.
Description
Technical field
The present invention relates to oil-gas exploration and development field more particularly to a kind of nonmetallic core holding units of super-pressure.
Background technique
CT technology have developed rapidly, and as measuring technology conventional in core analysis, be widely used in core description, rock core
Heterogeneity measurement, core sample selection, crack quantitative analysis, the measurement of online saturation degree, flowing experiment research etc..
By carrying out quantitative and graphical analysis, the pore structure of directly perceived characterization rock, heterogeneity, remaining oil distribution to physical properties of rock;
Visual research is carried out to displacement process, deeply understanding oil recovery mechanism, monitoring fluid dispersion and channelling characteristic, understanding polymer flooding
It is influenced on sweep area is improved, discloses formation damage mechanism etc..Utilize the saturation of the available rock core internal flow of CT technology
The research along journey distributed intelligence, for rock core is spent, the fluid saturation point in each layer more can be intuitively obtained using CT technology
Cloth information, and can further study crossflow phenomenon.
Currently, being in metal super-pressure clamper for the rock sample analysis means under the conditions of simulated formation hyperpressure
It carries out, scientific experiment, such as saturation, displacement can only be carried out for physical quantity.Under actual conditions, rock is in formation temperature and pressure
Under the influence of power and other factors, so that the distribution of its pore structure is mixed and disorderly unordered.It can not actual response using conventional means
Rock interior structure.There are also a part to utilize clamper made of nonmetallic materials, such as carbon fiber material, Ke Yijia
Certain pressure is carried, simulation stratum condition does rock core CT scan or does Magnetic resonance imaging.But due to material property and knot
The influence of structure, existing nonmetallic clamper can only work in 20MPa or less, and deep layer blowhole closure is not complete enough, not
Can authentic and valid simulation deep stratum condition, therefore just need a kind of uniform force, high pressure resistant and good airproof performance nonmetallic rock
Heart clamp holder.
A kind of heterogeneous multi-layer core holding unit for CT scanning as described in Chinese patent 201010610693.8
By shell, rubber tube, the left top of rock core, the right top of rock core, left fixes sleeve, right fixes sleeve, left fastening sleeve, right fastening
Sleeve and fixed bracket are constituted;It is characterized by: polyether-ether-ketone resin shell is cylindrical shape, rubber tube is placed in interior of shell, with
Shell is concentric: multilayer core model is located in rubber tube internal cavity;The left top of rock core, the right top of rock core are removably supported
In rubber tube, the both ends of multilayer core model, shape and size are consistent with rubber tube inner wall, the inner wall and rock core of rubber tube
The rock core room for accommodating multilayer core model is formed between left top and the right top of rock core;Left fixes sleeve and right fixes sleeve,
It is respectively sleeved on the left top of rock core and the right top of rock core, left fixes sleeve and right fixes sleeve periphery and shell both ends pass through axis
It is connected to confining pressure sealing ring;It is closed to form one for rubber drum outer wall between left fixes sleeve and right fixes sleeve and outer casing inner wall
Annular confining pressure space;Left fastening sleeve and right fastening sleeve are respectively sleeved on the left top of rock core and the right top of rock core, are located at
On the outside of left fixes sleeve and right fixes sleeve;Shell is equipped with confining pressure interface, confining pressure gas vent, confining pressure pressure relief vent;Rock core is left
It is equipped with inlet in top and is connected to rock core room, is equipped with rock core gas vent connection rock core room and ambient atmosphere;The right top of rock core
In be equipped with middle layer liquid outlet, upper layer liquid outlet, lower layer's liquid outlet, be connected to rock core room, each liquid outlet is respectively aligned to one layer of rock
Heart model corresponds to the seam crossing setting bar shaped liquid outlet gasket between adjacent two layers core model on the right top of rock core, so that
It is flowed out by the efflux of every layer of core model from the corresponding liquid outlet of each layer;Fixed bracket is located at below shell.
The above-mentioned heterogeneous multi-layer core holding unit for CT scanning, it is poor in sealing performance, and can only test
General pressure is 20MPa, under superelevation pressure condition, the sealing structure and the unreasonable of structure are just embodied, nothing
Method completes the rock core CT scan at 100Mpa.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of nonmetallic core holding unit of super-pressure, pressure value can be up to
100MPa;The design not only increases experimental pressure, in structure also more rationally, CT scan and core is met within the scope of 0-180 DEG C
The operating condition of magnetic resonance imaging.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of nonmetallic core holding unit of super-pressure, wound
New point is: including clamp body, end socket, end socket pressure cap, rock core, rock core plug, rock core plug plug and adjusting pressure cap;
The clamp body is nonmetallic tubular structure, and the through-hole for accommodating rock core, clamping are provided among clamp body
Screw thread is provided on the both ends outer wall of device main body;Rock core and rock core plug in the through-hole of clamp body and and clamp body
Inner wall between there are formed ring pressure gap;
The both ends that there is the end socket a pair to be connected to clamp body, one end of the end socket are provided with receiving folder
The cylindrical hole of holder body end, the other end of end socket are provided with the round platform hole for accommodating rock core plug plug, the round platform hole and cylinder
It is provided with rock core plug plug locating table on hole conducting and the side wall of round platform hole, is respectively arranged on the outer wall of end socket and covers mouth of calming the anger
Probe mouth is pressed with survey and is connected with round platform hole;
The end socket pressure cap has a cavity that a receiving end socket end is provided on a pair of and end socket pressure cap, the cavity it is interior
Wall is connected on the end socket at clamp body both ends by screw thread;The centre of end socket pressure cap is provided with rock core plug plug
Mounting hole;
In the cylindrical rock core plug plug mounting hole for being mounted on end socket pressure cap of the rock core plug plug;Rock core plug plug
Centre is provided with rock core plug mounting hole, and one end of the rock core plug mounting hole is provided with internal screw thread;One end of rock core plug plug is provided with
Rock core plug plug limiting stand, it is stifled that one end of the rock core plug plug limiting stand is located in the rock core plug being arranged on end socket round platform hole side wall
At head locating table, the other end of the rock core plug plug limiting stand is located in the rock core plug plug installation bore edges of end socket pressure cap;
The rock core is clamped in the middle position of clamp body through-hole by a pair of of rock core plug;The rock core plug is along axis
Line direction is provided with runner, and rock core plug includes interior rock core plug and outer rock core plug;The interior rock core plug is nonmetallic cylindrical-shaped structure, folder
The one end for holding the interior rock core plug on rock core is provided with gum cover card slot, and the hydrogen-free material glue around rock core is cased on the gum cover card slot
Set;The other end of interior rock core plug is connected with outer rock core plug by screw thread;Outer rock core plug passes through end socket and the rock with rock core plug plug
Heart plug mounting hole matches;It is provided on the outer profile of the outer rock core plug and adjusts pressure cap limit table top;
The intermediate setting for adjusting pressure cap accommodates the circular hole that outer rock core plug passes through, and adjusts the outer profile and rock core plug of pressure cap
The rock core plug mounting hole of plug is connected through a screw thread, and the one end for adjusting pressure cap withstands on the adjusting pressure cap limit table top of outer rock core plug
On;Rotation adjusts pressure cap and is held out against rock core plug drive displacement inside clamp body by the screw-driven of rock core plug plug
Rock core.
Further, axis direction is provided with thermometric inspecting hole on the side wall of the rock core plug plug, monitoring temperature is
The no temperature range in 0-180 degree.
Further, the rock core plug plug is extended on the end face of rock core plug plug limiting stand along axis direction
One circular thin-walled, the internal diameter of the thin-walled and the internal diameter of rock core plug mounting hole of rock core plug plug are identical, and rock core plug plug is applicable in
It can replace in acid-alkali salt different medium and freely.
Further, the structure of the nonmetallic clamping cylinder both ends connection is metal structure and outer rock core plug is also gold
Belong to structure.
Further, the interior rock core plug is consistent with outer rock core plug diameter is connected and stays between rock core plug and clamp body
There is gap, the end of interior rock core plug is provided with a thread protrusion, and the radius of the thread protrusion is less than the profile radius of interior rock core plug;
The end of outer rock core plug is provided with the tapped blind hole to match with the thread protrusion, and the bottom end of tapped blind hole is provided with sealing knot
Structure.
Further, in the cohesive position of clamp body and end socket, the cohesive position of rock core plug plug and end socket, adjusting
The position of pressure cap and rock core plug plug is provided with sealing ring.
Further, the internal diameter that the end socket accommodates the round platform hole of rock core plug plug is gradually reduced from outside to inside.
The present invention has the advantages that
1) clamp body and interior rock core plug are in the work for meeting CT scan and Magnetic resonance imaging using non-metallic material
Both ends use the structure of metal while condition, and outer rock core plug is also metal structure, avoid outer rock core plug and its exterior part it
Between the inconsistent damage for causing to cause rock core plug in multiple disassembly and assembly of material, reduce the service life, while reducing non-
The use of metal material, reduces costs;
2) axis direction is provided with thermometric inspecting hole on the side wall of rock core plug plug, clamp body can be monitored at any time
Internal temperature conditions, convenient for observing operative condition of the fluid to rock core at different temperatures;
3) it is circular thin to be extended with one along axis direction on the end face of rock core plug plug limiting stand for rock core plug plug
Wall, the internal diameter of the thin-walled and the internal diameter of rock core plug mounting hole of rock core plug plug are identical, prevent from adjusting pressure cap in adjusting rock core plug
When due to rock core it is undersized lead to outer rock core plug adjusting pressure cap limit table top and rock core plug plug misplace cause it is close
The case where envelope property reduces, and in the case where not increasing entire length, guiding area is extended, different size of rock core is suitable for
Structure;
4) rock core plug is consistent with outer rock core plug diameter in is connected, reduce gas by rock core plug and clamp body it
Between gap air resistance, reduce crushing;
5) the cohesive position of clamp body and end socket, rock core plug plug and end socket cohesive position, adjust pressure cap with
The position of rock core plug plug is provided with sealing ring, ensure that in the case where increasing pressure, the leakproofness of entire rock core clamping
Can be good, it will not there is a situation where reveal;
6) internal diameter that end socket accommodates the round platform hole of rock core plug plug is gradually reduced from outside to inside, is convenient for rock core plug plug one end
Annulus thin-walled extension and there are the thermometric inspecting holes being arranged on rock core plug plug to be monitored space.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the cross-sectional view of the nonmetallic core holding unit of super-pressure.
Fig. 2 is the partial enlarged view of the nonmetallic core holding unit of super-pressure.
Fig. 3 is the end socket cross-sectional view of the nonmetallic core holding unit of super-pressure.
Fig. 4 is the end socket pressure cap cross-sectional view of the nonmetallic core holding unit of super-pressure.
Fig. 5 is the rock core plug plug cross-sectional view of the nonmetallic core holding unit of super-pressure.
Fig. 6 is the rock core plug cross-sectional view of the nonmetallic core holding unit of super-pressure.
Fig. 7 is the adjusting pressure cap cross-sectional view of the nonmetallic core holding unit of super-pressure.
It is as shown in Figures 1 to 7: 1, core holding unit main body;11, through-hole;2, end socket;21, cylindrical hole;22, round platform hole;
23, rock core plug plug locating table;24, mouth of calming the anger is covered;25, pressure probe mouth is surveyed;3, end socket pressure cap;31, cavity;32, rock core plug
Plug mounting hole;4, rock core;5, rock core plug;51, runner;52, interior rock core plug;53, outer rock core plug;531, pressure cap limiting stand is adjusted
Face;6, rock core plug plug;61, rock core plug mounting hole;62 rock core plug plug limiting stands;63, thermometric inspecting hole;64, thin-walled;7, it adjusts
Pressure cap;71, circular hole;8, gum cover.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
The nonmetallic core holding unit of a kind of super-pressure as shown in Figures 1 to 7, including clamp body 1, end socket 2, end socket
Pressure cap 3, rock core 4, rock core plug 5, rock core plug plug 6 and adjusting pressure cap 7.
Clamp body 1 is nonmetallic tubular structure, and the through-hole 11 for accommodating rock core, clamping are provided among clamp body 1
Screw thread is provided on the both ends outer wall of device main body 1;Rock core 4 and rock core plug 5 be placed in the through-hole 11 of clamp body 1 and with clamping
There are the gaps for forming ring pressure between the inner wall of device main body 1, can use heat source and carry out circulating heating to clamper.
The both ends that there is end socket 2 a pair to be connected to clamp body 1, one end of the end socket 2 are provided with receiving folder
The cylindrical hole 21 of 1 end of holder main body, the other end of end socket 2 are provided with the round platform hole 22 for accommodating rock core plug plug 6, the round platform hole
22 are connected with cylindrical hole 21 and are provided on the side wall of round platform hole 22 rock core plug plug locating table 23, divide on the outer wall of end socket 2
It is not provided with to cover and calms the anger mouth 24 and survey pressure probe mouth 25 and be connected with round platform hole 22.
End socket pressure cap 3 has the cavity 31 that 2 end of a receiving end socket is provided on a pair of and end socket pressure cap 3, the cavity 31
Inner wall be connected on the end socket 2 at 1 both ends of clamp body by screw thread;The centre of end socket pressure cap 3 is provided with rock
Heart plug plug mounting hole 32.
In the cylindrical rock core plug plug mounting hole 32 for being mounted on end socket pressure cap 3 of rock core plug plug 6;Rock core plug plug 6
Centre be provided with rock core plug mounting hole 61, one end of the rock core plug mounting hole 61 is provided with internal screw thread;One end of rock core plug plug 6
It is provided with rock core plug plug limiting stand 62, one end of the rock core plug plug limiting stand 62 is located on 2 round platform hole of end socket, 22 side wall
At the rock core plug plug locating table 23 of setting, the other end of the rock core plug plug limiting stand 62 is located in the rock of end socket pressure cap 3
32 edge of heart plug plug mounting hole.
Rock core 4 passes through the middle position that a pair of of rock core plug 5 is clamped in 1 through-hole 11 of clamp body, the rock core plug 5 along
Axis direction is provided with runner 51, and rock core plug 5 includes interior rock core plug 52 and outer rock core plug 53;The interior rock core plug 52 is nonmetallic circle
One end of column structure, the interior rock core plug 52 being clamped on rock core 4 is provided with gum cover card slot, is cased on the gum cover card slot around rock
The hydrogen-free material gum cover 8 of the heart;The end face that interior rock core plug 52 is contacted with rock core 4 is provided with ring-shaped groove, convenient for fluid well into
In rock core 4;The other end of interior rock core plug 52 is connected with outer rock core plug 53 by screw thread;Outer rock core plug 53 passes through end socket 2 and and rock
The rock core plug mounting hole 61 of heart plug plug 6 matches;It is provided on the outer profile of the outer rock core plug 53 and adjusts pressure cap limiting stand
Face 531.
The intermediate setting for adjusting pressure cap 7 accommodates the circular hole 71 that outer rock core plug 53 passes through, and adjusts the outer profile and rock core of pressure cap 7
The rock core plug mounting hole 61 of plug plug 6 is connected through a screw thread, and the one end for adjusting pressure cap 7 withstands on the adjusting pressure cap limit of outer rock core plug 53
On the table top 531 of position;Rotation, which adjusts pressure cap 7 and held out against 5 drive displacement of rock core plug by the screw-driven of rock core plug plug 6, is located at folder
Rock core 4 inside holder main body 1.
Axis direction is provided with thermometric inspecting hole 63 on the side wall of rock core plug plug 6, clamp body 1 can be monitored at any time
Inside temperature conditions, convenient for observing operative condition of the fluid to rock core 4 at different temperatures.
It is circular thin that rock core plug plug 6 is extended with one along axis direction on the end face of rock core plug plug limiting stand 62
Wall 64, the internal diameter of the thin-walled 64 and the internal diameter of rock core plug mounting hole 61 of rock core plug plug 6 are identical, prevent adjusting pressure cap 7 from adjusting
Due to the undersized adjusting pressure cap limit table top 531 and rock core plug for leading to outer rock core plug 53 of rock core 4 when saving rock core plug 5
The case where dislocation of plug 6 causes leakproofness to reduce, rock core plug plug are suitable for acid-alkali salt different medium and can freely replace, and
In the case where not increasing entire length, guiding area is extended, is suitable for different size of rock core structure.
Clamp body 1 and interior rock core plug 52 using non-metallic material meet 0-180 degree CT scan and nuclear magnetic resonance at
Both ends use the structure of metal while the operating condition of picture, and outer rock core plug 53 is also metal structure, avoids outer rock core plug 53
The inconsistent damage for causing to cause rock core plug 5 in multiple disassembly and assembly of material, reduces the service life between its exterior part.
Interior rock core plug 52 is consistent with outer 53 diameter of rock core plug to be connected, and reduces gas by rock core plug 5 and clamper master
The air resistance in gap, reduces crushing between body 1.
In the cohesive position of clamp body 1 and end socket 2, the cohesive position of rock core plug plug 6 and end socket 2, adjusting pressure cap 7
It is provided with sealing ring with the position of rock core plug plug 6, ensure that in the case where increasing pressure, the sealing of entire rock core clamping
It is functional, it will not there is a situation where reveal.
The internal diameter that end socket 2 accommodates the round platform hole 22 of rock core plug plug 6 is gradually reduced from outside to inside, is convenient for rock core plug plug 6
The extension of the annulus thin-walled 64 of one end and there are the thermometric inspecting holes 63 being arranged on rock core plug plug 6 to be monitored space.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of nonmetallic core holding unit of super-pressure, it is characterised in that: including clamp body, end socket, end socket pressure cap, rock
The heart, rock core plug, rock core plug plug and adjusting pressure cap;
The clamp body is nonmetallic tubular structure, and the through-hole for accommodating rock core, clamper master are provided among clamp body
Screw thread is provided on the both ends outer wall of body;Rock core and rock core plug in the through-hole of clamp body and in clamp body
There are the gaps for forming ring pressure between wall;
There is the end socket a pair to be connected to the both ends of clamp body, and one end of the end socket is provided with receiving clamper
The cylindrical hole of body end, the other end of end socket are provided with the round platform hole for accommodating rock core plug plug, which leads with cylindrical hole
It is provided with rock core plug plug locating table on the logical and side wall of round platform hole, is respectively arranged on the outer wall of end socket and covers calm the anger mouth and survey
It presses probe mouth and is connected with round platform hole;
The end socket pressure cap has the cavity that a receiving end socket end is provided on a pair of and end socket pressure cap, and the inner wall of the cavity is logical
Screw thread is crossed to be connected on the end socket at clamp body both ends;The centre of end socket pressure cap is provided with the installation of rock core plug plug
Hole;
In the cylindrical rock core plug plug mounting hole for being mounted on end socket pressure cap of the rock core plug plug;The centre of rock core plug plug
It is provided with rock core plug mounting hole, one end of the rock core plug mounting hole is provided with internal screw thread;One end of rock core plug plug is provided with rock core
Plug limiting stand is filled in, it is fixed that one end of the rock core plug plug limiting stand is located in the rock core plug plug being arranged on end socket round platform hole side wall
At the table top of position, the other end of the rock core plug plug limiting stand is located in the rock core plug plug installation bore edges of end socket pressure cap;
The rock core is clamped in the middle position of clamp body through-hole by a pair of of rock core plug;The rock core plug is along axis side
To runner is provided with, rock core plug includes interior rock core plug and outer rock core plug;The interior rock core plug is nonmetallic cylindrical-shaped structure, is clamped in
One end of interior rock core plug on rock core is provided with gum cover card slot, and the hydrogen-free material gum cover around rock core is cased on the gum cover card slot;
The other end of interior rock core plug is connected with outer rock core plug by screw thread;Outer rock core plug passes through end socket and the rock core plug with rock core plug plug
Mounting hole matches;It is provided on the outer profile of the outer rock core plug and adjusts pressure cap limit table top;
The intermediate setting for adjusting pressure cap accommodates the circular hole that outer rock core plug passes through, and adjusts the outer profile and rock core plug plug of pressure cap
Rock core plug mounting hole be connected through a screw thread, adjust pressure cap one end withstand on outer rock core plug adjusting pressure cap limit table top on;Rotation
Rock core plug drive displacement is held out against the rock inside clamp body by the screw-driven of rock core plug plug by modulation section pressure cap
The heart.
2. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: the rock core plug plug
Side wall on axis direction is provided with thermometric inspecting hole, whether monitoring temperature is in the temperature range of 0-180 degree.
3. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: the rock core plug plug
A circular thin-walled, the internal diameter and rock core of the thin-walled are extended with along axis direction on the end face of rock core plug plug limiting stand
The internal diameter for filling in the rock core plug mounting hole of plug is identical, and rock core plug plug is suitable for acid-alkali salt different medium and can freely replace.
4. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: the nonmetallic folder
The structure of tube-holding body both ends connection is metal structure and outer rock core plug is also metal structure.
5. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: the interior rock core plug with
Outer rock core plug diameter is unanimously connected and between rock core plug and clamp body there are gap, and the end of interior rock core plug is provided with a spiral shell
Line protrusion, the radius of the thread protrusion are less than the profile radius of interior rock core plug;The end of outer rock core plug is provided with convex with the screw thread
The tapped blind hole to match is acted, and the bottom end of tapped blind hole is provided with sealing structure.
6. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: clamp body with
The cohesive position of end socket, the cohesive position of rock core plug plug and end socket, the position that adjusts pressure cap and rock core plug plug are provided with
Sealing ring.
7. the nonmetallic core holding unit of a kind of super-pressure according to claim 1, it is characterised in that: the end socket accommodates rock
The internal diameter of the round platform hole of heart plug plug is gradually reduced from outside to inside.
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CN112986287A (en) * | 2021-04-15 | 2021-06-18 | 中国科学院地质与地球物理研究所 | Ultrahigh-pressure nonmetal core holder |
CN113237742B (en) * | 2021-06-07 | 2022-04-19 | 中国科学院力学研究所 | Clamp holder for indoor hydraulic fracturing experiment |
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CN102162784A (en) * | 2010-12-17 | 2011-08-24 | 中国石油天然气股份有限公司 | Non-homogenous multi-layer core holder for CT (computed tomography) scanning |
CN102507626A (en) * | 2011-10-10 | 2012-06-20 | 北京大学 | Rock core holder compatible with nuclear magnetic resonance |
CN203658351U (en) * | 2013-12-16 | 2014-06-18 | 何小兵 | Core wafer clamp holder |
CN103940720A (en) * | 2014-04-18 | 2014-07-23 | 西南石油大学 | Ultrahigh pressure sealing core holder capable of pressurizing step by step |
CN104267174A (en) * | 2014-10-25 | 2015-01-07 | 吴建平 | Rock core holder |
CN205091281U (en) * | 2015-10-23 | 2016-03-16 | 西南石油大学 | Nonmetal high -pressure rock core holder |
CN205210082U (en) * | 2015-12-11 | 2016-05-04 | 西南石油大学 | High pressure rock core holder |
CN206020298U (en) * | 2016-08-22 | 2017-03-15 | 江苏联友科研仪器有限公司 | A kind of nonmetallic core holding unit of supertension |
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