CN117405576A - Holder for holding rock core and holding method - Google Patents
Holder for holding rock core and holding method Download PDFInfo
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- CN117405576A CN117405576A CN202311342978.1A CN202311342978A CN117405576A CN 117405576 A CN117405576 A CN 117405576A CN 202311342978 A CN202311342978 A CN 202311342978A CN 117405576 A CN117405576 A CN 117405576A
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- sucker
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- 239000011435 rock Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 40
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 230000000149 penetrating effect Effects 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- 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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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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Abstract
The invention discloses a holder for holding a rock core and a holding method, and relates to the technical field of rock core detection. According to the invention, the stability of the device can be improved by arranging the base and the sucker, placing the sucker on the desktop, extruding the base, discharging air in the sucker, adsorbing the sucker on the desktop, starting the motor when the device is required to be moved, driving the winding shaft to rotate by the motor, driving the winding shaft to rotate so as to tighten the cable, and pulling the connecting rod to rise by the cable through the guide wheel, so that the connecting rod pulls the blocking ball to be separated from the sealing block, and external air enters from the filter screen on the outer wall of the base, so that the atmospheric pressure inside and outside the sucker is balanced, and the sucker can move, thereby ensuring the stability of the device in the use process.
Description
Technical Field
The invention relates to the technical field of core detection, in particular to a core clamping holder and a core clamping method.
Background
The core holder is an instrument for holding and protecting a rock sample and sealing a cylindrical surface or an end surface (generally, the end surface leaving a fluid inlet and a fluid outlet) when the core holder is used for measuring the seepage characteristic of the rock sample or performing displacement test in a laboratory, is an indispensable important auxiliary component in developing experimental instrument devices, and is used for recognizing the geological characteristics of hydrocarbon reservoirs: the rock core is an important component of physical geological data, and through rock core analysis, the geological characteristics of the hydrocarbon reservoir can be recognized, and the hydrocarbon reservoir technology is protected: the geological research of the hydrocarbon reservoir is a basic work for protecting the hydrocarbon reservoir technology, and the core analysis plays an important role in the geological research of the hydrocarbon reservoir, is a starting point of the system engineering for protecting the hydrocarbon reservoir technology, and is used for knowing the law of change of the earth deep motion: through sampling and observing the rock ring, the rock core is a key for a human to open the core mystery in the earth, so that the change rule of the earth deep movement can be known, and mineral resources are researched and evaluated: the minerals contained in the core specimen and the recorded geological events and principles are introduced, and are important components of physical geological data, and are first-hand data for researching and evaluating mineral resources.
The existing clamping device has the following defects:
1. patent document CN105973919B discloses a core holder for oil and gas exploration and development field, the core holder of the present invention comprises a confining pressure kettle body, a positioning plug, an adjusting plug and a rubber cylinder assembly, wherein a confining pressure cavity is formed in a space between the rubber cylinder assembly and the confining pressure kettle body, the confining pressure kettle body is of a carbon fiber-metal-engineering plastic composite material structure, the confining pressure kettle body comprises metal structure threaded rings respectively fixed at two ends of the confining pressure kettle body, a shell of carbon fiber laid at the outer side of the threaded rings, and an inner liner of engineering plastic attached to the inner wall of the shell, two ends of the inner liner respectively abut against the positioning plug and the adjusting plug, the positioning plug and the adjusting plug are respectively provided with a compression screw sleeve, the compression screw sleeve is fixedly connected to the threaded rings, and the positioning plug and the adjusting plug are fixedly compressed by the compression screw sleeve. The core holder with the composite structure is suitable for high-temperature and high-pressure environments, but the existing device is not stable enough, and is easy to shake during detection, so that the detection result is not accurate enough;
2. patent document CN110609131B discloses a core holder, "for setting a core sample, which includes: the device comprises a barrel, a sealing sleeve, a bracket and a support, wherein the barrel is provided with a first end and a second end which are opposite to each other, the sealing sleeve is arranged between the barrel and a core sample, and the bracket is arranged between the sealing sleeve and the core sample and is used for being distributed on two sides of the core sample; a through groove is formed in one side of the support, which faces the core sample; plugs are arranged at two ends of the sealing sleeve and are internally provided with end channels; the gasket is arranged between the plug and the core sample; the end channels are communicated with the grooves to form flow channels, crude oil can flow through the grooves through the end channels at one end, then flows through the core, and finally flows out through the end channels at the other end. The invention can meet the requirement of heterogeneous core saturated oil and realize the function of improving the saturation of a low permeable layer of a heterogeneous core, but most of the existing devices lack a leakage detection structure, and can not timely inform staff when leakage occurs;
3. patent document CN108181165B discloses a core holder, "comprising: the plastic rubber sleeve comprises a body with a cavity, wherein the body is provided with first to third openings which are mutually perpendicular, a rubber sleeve with a containing cavity is arranged in the cavity, and fourth to sixth through holes which are mutually perpendicular are formed in the rubber sleeve; the device comprises a conductive sealing plug and an insulating block, wherein the conductive sealing plug and the insulating block are arranged in fourth through holes, the insulating block is fixedly provided with a mounting hole in the top, a conductive element is arranged in the mounting hole in a penetrating manner, a pressing cap and a pressing end are arranged in a first opening to a third opening, a pressure transmission column with a pressure transmission channel is arranged in the pressing cap, the outer end of the pressure transmission column can be connected with a displacement sensor, the pressing end is provided with a pressing hole and is sleeved outside the pressure transmission column, the pressure transmission column is sleeved with a pressure transmission sliding body arranged in the pressing end, a sealing ring cavity is formed between the pressure transmission sliding body and the pressing end, and the sealing ring cavity is communicated with the pressing hole. The method can better simulate the true triaxial stress-rock deformation-resistivity "under the condition of a true stratum and in any stress combination state in the X, Y, Z directions, but most of the existing devices cannot adjust the height, so that the flexibility of the devices is insufficient;
4. patent document CN113484223B discloses a full diameter core holder, "the full diameter core holder includes a cylinder, a core holding seal assembly, and an axial holding assembly. The cylinder body is internally provided with a hollow through cavity and a radial confining pressure source channel is arranged on the peripheral wall, the core clamping sealing assembly is arranged in the hollow through cavity and comprises a core clamping sealing cavity and a fluid injection and production channel which is communicated with the core clamping sealing cavity and is opposite to the core clamping sealing cavity in the radial direction, the axial clamping assembly is arranged at the axial end part of the cylinder body and is abutted to the axial end part of the core clamping sealing cavity, and the axial clamping assembly, the core clamping sealing assembly and the peripheral wall of the cylinder body form a radial confining pressure cavity connected with the radial confining pressure source channel. The full-diameter core holder can perform radial displacement experiments on the full-diameter core, and the full-diameter core cannot be damaged, but the existing device is inconvenient to use and detach, difficult to clean after use and inconvenient to use.
Disclosure of Invention
The invention aims to provide a clamp holder for clamping a rock core and a clamping method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the holder for holding the rock core comprises a base, a fixed cylinder and a protective shell, wherein the base is cylindrical with the diameter of 10cm and the height of 4cm, a telescopic column is arranged at the top of the base, a fixed ring is arranged at the top of the telescopic column, the inner wall of the fixed ring is provided with the fixed cylinder in a penetrating manner, and the protective shell is arranged on the inner bottom wall of the fixed cylinder;
the bottom of base is run through and is installed the sucking disc, the top of sucking disc runs through and is installed the blast pipe, the check valve is installed to the outer wall of blast pipe, two sets of sealing blocks are installed to the inside diapire of check valve, the connecting rod is installed in the top of check valve runs through, the outer wall of connecting rod encircles and installs first spring, the shutoff ball is installed to the bottom of connecting rod, a plurality of guide wheels are installed to the inside roof of base, the outer wall winding of guide wheel has the cable, and the one end of cable is connected with the one end of connecting rod, the motor is installed to the inside diapire of base, and the spool is installed to the output of motor, and receive the spool and be connected with the other end of cable.
Preferably, a screw cap is installed to one end of the fixed cylinder, the outer wall of the screw cap is penetrated and installed with a fluid injection pipe, the outer wall of the screw cap is penetrated and installed with an injection pressure sensor, the injection pressure sensor is located at one side of the fluid injection pipe, the other end of the fixed cylinder is installed with a screw cap, the outer wall of the screw cap is penetrated and installed with a fluid output pipe, and the outer wall of the screw cap is penetrated and installed with an output pressure sensor.
Preferably, an electric telescopic rod is installed on the outer wall of the first screw cap, the electric telescopic rod is located inside the fixed cylinder, the second electric telescopic rod is installed on the outer wall of the second screw cap, the second electric telescopic rod is located inside the fixed cylinder, the detection cavity is installed on the inner wall of the fixed cylinder, a plurality of first pressure sensors are installed at the bottom of the detection cavity, cylindrical rocks are placed on the inner wall of the detection cavity through the electric telescopic rod and one end of the second electric telescopic rod, a pressing plate is installed at one end of the first electric telescopic rod, a second pressure sensor is installed on the outer wall of the first pressing plate, a second pressing plate is installed at one end of the second electric telescopic rod, and a third pressure sensor is installed on the outer wall of the second pressing plate.
Preferably, the hydraulic stem is installed to the inside roof of fixed section of thick bamboo, and No. three stripper plates are installed to the bottom of hydraulic stem, and the hot plate is installed at No. three stripper plates's top, and the heating wire is installed to the inner wall of hot plate.
Preferably, the outer walls of the fluid injection pipe and the fluid output pipe are respectively provided with a first pressure gauge and a second pressure gauge.
Preferably, the control chip is installed to the inner wall of protective housing, and bee calling organ is installed to the inside diapire of protective housing.
Preferably, the cushion is installed to the inside diapire of solid fixed ring, and a plurality of non-slip bumps are installed at the top of cushion, and the top of solid fixed ring runs through and installs the bolt, and curved fixed plate is installed to the bottom of bolt, and a plurality of non-slip blocks are installed to the bottom of fixed plate, and the handle is installed at the top of bolt.
Preferably, the outer wall of flexible post is equipped with a plurality of spacing holes, and the top of flexible post runs through and installs the extension post, and the riser is installed to the inside diapire of extension post, and the second spring is all installed to the both sides outer wall of riser, and the gag lever post is installed to the one end of second spring.
Preferably, the clamping method of the clamp is as follows:
s1, firstly unscrewing a first screw cover and a second screw cover, filling rock into a detection cavity, then screwing the first screw cover and the second screw cover into a fixed cylinder, enabling a first electric telescopic rod and a second electric telescopic rod to extend to drive a first extrusion plate and a second extrusion plate to apply pressure to the rock, clamping the rock, enabling a hydraulic rod to extend to drive a third extrusion plate to descend at the moment, and extruding the side face of the rock;
s2, when the permeability of the rock is detected, fluid is injected into the rock from the fluid injection pipe, the permeability of the rock is judged according to the content of the fluid discharged by the fluid output pipe, the pressure condition in the pipeline is obtained through the injection pressure sensor and the output pressure sensor, and whether the fluid leaks is judged through the first pressure gauge and the second pressure gauge;
s3, when the device is installed, the sucker is placed on a tabletop, the base is extruded, so that air in the sucker is discharged, the air impacts the one-way valve, the air pushes the blocking ball to move, the blocking ball drives the connecting rod to move, the first spring contracts, so that the sucker is adsorbed on the tabletop, when the device is required to be moved, the motor is started, the winding shaft is driven to rotate, the winding shaft rotates to drive the cable to tighten, the cable pulls the connecting rod to rise through the guide wheel, the connecting rod pulls the blocking ball to be separated from the sealing block, external air enters the filter screen on the outer wall of the base, so that the atmospheric pressure inside and outside the sucker is balanced, the sucker moves, and the sucker can ensure the stability of the device in the use process;
s4, when the height of the device is adjusted, the two limiting rods on the outer wall of the extending column are pressed, the limiting rods extrude the second springs, the limiting rods are retracted from the limiting holes, the extending column is pulled to adjust the height, when the height is adjusted to be proper, the limiting rods are loosened, and the limiting rods are inserted into the limiting holes under the action of the second springs to fix the extending column.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the stability of the device can be improved by installing the base and the sucker, when the device is installed, the sucker is placed on the desktop, then the base is extruded, so that air in the sucker is discharged, the air impacts the one-way valve, the air pushes the blocking ball to move, the blocking ball drives the connecting rod to move, the first spring contracts, so that the sucker is adsorbed on the desktop, when the device needs to be moved, the motor is started, the motor drives the winding shaft to rotate, the winding shaft rotates to drive the cable to tighten, the cable pulls the connecting rod to rise through the guide wheel, the blocking ball is pulled by the connecting rod to be separated from the sealing block, and external air enters from the filter screen on the outer wall of the base, so that the internal and external atmospheric pressures of the sucker are balanced, and the sucker moves, so that the stability of the device in the use process can be ensured;
2. the alarm device has the advantages that the alarm function can be realized by installing the buzzer, the control chip is electrically connected with the plurality of sensors, signals of the sensors are input into the control chip for processing, the control chip compares the transmitted signals with the set signals, when the transmitted signals are no longer in the set range, the control chip can judge that the signals are abnormal, and the control chip controls the buzzer to send out sound alarm to remind workers;
3. according to the invention, the height adjusting function can be realized by installing the telescopic column, when the height of the device is adjusted, the two limiting rods on the outer wall of the extending column are pressed, so that the limiting rods extrude the second spring, the limiting rods retract from the limiting holes, the extending column can be pulled to realize the height adjustment, when the height is adjusted to a proper height, the limiting rods are loosened, and the limiting rods are inserted into the limiting holes under the action of the second spring to fix the extending column;
4. according to the invention, the screw cap is convenient and quick to assemble and disassemble, the first screw cap and the second screw cap are screwed out, rocks are filled in the detection cavity, then the first screw cap and the second screw cap are screwed into the fixed cylinder, the first electric telescopic rod and the second electric telescopic rod stretch to drive the first extrusion plate and the second extrusion plate to apply pressure to the rocks, and simultaneously the rocks are clamped, and at the moment, the hydraulic rod stretches to drive the third extrusion plate to descend so as to extrude the lateral surfaces of the rocks.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a portion of a stationary barrel according to the present invention;
FIG. 3 is a schematic view of a portion of a retaining ring according to the present invention;
FIG. 4 is a schematic view of a base portion of the present invention;
FIG. 5 is a schematic view of a portion of a telescopic column according to the present invention;
fig. 6 is a schematic structural view of a portion of a check valve according to the present invention.
In the figure: 1. a base; 2. a telescopic column; 3. a fixing ring; 4. a fixed cylinder; 5. a first screw cap; 6. a fluid injection tube; 7. an injection pressure sensor; 8. a second screw cap; 9. a fluid output pipe; 10. outputting a pressure sensor; 11. a second pressure gauge; 12. a first pressure gauge; 13. a first electric telescopic rod; 14. a first extrusion plate; 15. a second pressure sensor; 16. a detection chamber; 17. a second electric telescopic rod; 18. a second extrusion plate; 19. a first pressure sensor; 20. a hydraulic rod; 21. a heating plate; 22. heating wires; 23. a third extrusion plate; 24. rock; 25. a protective shell; 26. a control chip; 27. a buzzer; 28. a slip preventing protrusion; 29. a bolt; 30. a fixing plate; 31. an anti-skid block; 32. a handle; 33. a suction cup; 34. a one-way valve; 35. a sealing block; 36. a connecting rod; 37. a first spring; 38. a blocking ball; 39. a guide wheel; 40. a motor; 41. a reel is taken up; 42. a limiting hole; 43. an extension column; 44. a riser; 45. a second spring; 46. a limit rod; 47. and (5) cushion blocks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2, 3, 4 and 5, an embodiment of the present invention is provided: the holder for holding the rock core comprises a base 1, a fixed cylinder 4 and a protective shell 25, wherein the base 1 is cylindrical with the diameter of 10cm and the height of 4cm, a telescopic column 2 is installed at the top of the base 1, a fixed ring 3 is installed at the top of the telescopic column 2, the fixed cylinder 4 is installed in a penetrating manner on the inner wall of the fixed ring 3, the protective shell 25 is installed on the inner bottom wall of the fixed cylinder 4, a sucking disc 33 is installed in a penetrating manner on the bottom of the base 1, an exhaust pipe is installed in a penetrating manner on the top of the sucking disc 33, a one-way valve 34 is installed on the outer wall of the exhaust pipe, two groups of sealing blocks 35 are installed on the inner bottom wall of the one-way valve 34, a connecting rod 36 is installed in a penetrating manner on the top of the one-way valve 34, a first spring 37 is installed on the outer wall of the connecting rod 36 in a surrounding manner, a blocking ball 38 is installed on the bottom of the connecting rod 36, a plurality of guide wheels 39 are installed on the inner top wall of the base 1, the outer wall of the guiding wheel 39 is wound with a cable, one end of the cable is connected with one end of the connecting rod 36, the inner bottom wall of the base 1 is provided with a motor 40, the output end of the motor 40 is provided with a winding shaft 41, the winding shaft 41 is connected with the other end of the cable, further, one end of the fixed cylinder 4 is provided with a first screw cap 5, the outer wall of the first screw cap 5 is provided with a fluid injection pipe 6 in a penetrating way, the outer wall of the first screw cap 5 is provided with an injection pressure sensor 7 in a penetrating way, the injection pressure sensor 7 is positioned on one side of the fluid injection pipe 6, the other end of the fixed cylinder 4 is provided with a second screw cap 8, the outer wall of the second screw cap 8 is provided with a fluid output pipe 9 in a penetrating way, the outer wall of the second screw cap 8 is provided with an output pressure sensor 10 in a penetrating way, the outer wall of the first screw cap 5 is provided with an electric telescopic rod 13, and electric telescopic handle 13 is located the inside of fixed section of thick bamboo 4, no. two electric telescopic handle 17 is installed to the outer wall of screw cap 8, and No. two electric telescopic handle 17 are located the inside of fixed section of thick bamboo 4, detection chamber 16 is installed to the inner wall of fixed section of thick bamboo 4, a plurality of first pressure sensor 19 are installed to the bottom of detection chamber 16, the inside of detection chamber 16 is all inserted to electric telescopic handle 13 and No. two electric telescopic handle 17's one end, cylindrical rock 24 has been placed to the inner wall of detection chamber 16, no. one stripper plate 14 is installed to electric telescopic handle 13's one end, no. two stripper plates 18 are installed to No. two stripper plates 14's outer wall, no. two stripper plates 18's outer wall installs third pressure sensor.
Referring to fig. 2, the hydraulic rod 20 is installed on the inner top wall of the fixed cylinder 4, the third extruding plate 23 is installed at the bottom of the hydraulic rod 20, the heating plate 21 is installed at the top of the third extruding plate 23, the heating wire 22 is installed on the inner wall of the heating plate 21, the first pressure gauge 12 and the second pressure gauge 11 are respectively installed on the outer walls of the fluid injection tube 6 and the fluid output tube 9, the control chip 26 is installed on the inner wall of the protective shell 25, the buzzer 27 is installed on the inner bottom wall of the protective shell 25, the control chip 26 is electrically connected with a plurality of sensors, signals of the sensors are input into the control chip 26 for processing, the control chip 26 compares the transmitted signals with the set signals, when the transmitted signals are no longer in the set range, the control chip can judge that the signals are abnormal, the control chip 26 controls the buzzer 27 to give out sound warning, and the staff is reminded.
Referring to fig. 3, a cushion block 47 is mounted on the inner bottom wall of the fixing ring 3, a plurality of anti-slip protrusions 28 are mounted on the top of the cushion block 47, bolts 29 are mounted on the top of the fixing ring 3 in a penetrating manner, an arc-shaped fixing plate 30 is mounted on the bottom of the bolts 29, a plurality of anti-slip blocks 31 are mounted on the bottom of the fixing plate 30, and a handle 32 is mounted on the top of the bolts 29.
Referring to fig. 5, the outer wall of the telescopic column 2 is provided with a plurality of limiting holes 42, an extension column 43 is installed at the top of the telescopic column 2 in a penetrating manner, a vertical plate 44 is installed on the inner bottom wall of the extension column 43, second springs 45 are installed on the outer walls of two sides of the vertical plate 44, and a limiting rod 46 is installed at one end of each second spring 45.
The clamping method of the clamp is as follows:
s1, firstly unscrewing a first screw cap 5 and a second screw cap 8, filling rock 24 into a detection cavity 16, then screwing the first screw cap 5 and the second screw cap 8 into a fixed cylinder 4, stretching a first electric telescopic rod 13 and a second electric telescopic rod 17 to drive a first extrusion plate 14 and a second extrusion plate 18 to apply pressure to the rock 24, simultaneously clamping the rock 24, and stretching a hydraulic rod 20 to drive a third extrusion plate 23 to descend to extrude the side surface of the rock 24;
s2, when the permeability of the rock is detected, fluid is injected into the rock 24 from the fluid injection pipe 6, the permeability of the rock is judged according to the content of the fluid discharged by the fluid output pipe 9, the pressure condition in the pipeline is obtained through the injection pressure sensor 7 and the output pressure sensor 10, and whether the fluid leaks is judged through the first pressure gauge 12 and the second pressure gauge 11;
s3, when the device is installed, the sucker 33 is placed on a desktop, then the base 1 is extruded, so that air in the sucker 33 is discharged, the air impacts the one-way valve 34, the air pushes the blocking ball 38 to move, the blocking ball 38 drives the connecting rod 36 to move, the first spring 37 contracts, so that the sucker 33 is adsorbed on the desktop, when the device needs to be moved, the motor 40 is started, the motor 40 drives the winding shaft 41 to rotate, the winding shaft 41 rotates to drive the cable to tighten, the cable pulls the connecting rod 36 to rise through the guide wheel 39, so that the connecting rod 36 pulls the blocking ball 38 to be separated from the sealing block 35, and the outside air enters from the filter screen on the outer wall of the base 1, so that the internal and external atmospheric pressures of the sucker 33 are balanced, and the sucker 33 moves, so that the stability of the device in the use process can be ensured;
s4, when the height of the device is adjusted, two limiting rods 46 on the outer wall of the extending column 43 are pressed, the limiting rods 46 squeeze the second springs 45, the limiting rods 46 retract from the limiting holes 42, the extending column 43 can be pulled to adjust the height, when the height is adjusted to a proper height, the limiting rods 46 are loosened, and the limiting rods 46 are inserted into the limiting holes 42 under the action of the second springs 45 to fix the extending column 43.
The working principle is that firstly, the first screw cap 5 and the second screw cap 8 are screwed out, the rock 24 is filled into the detection cavity 16, then the first screw cap 5 and the second screw cap 8 are screwed into the fixed cylinder 4, the first electric telescopic rod 13 and the second electric telescopic rod 17 stretch to drive the first extrusion plate 14 and the second extrusion plate 18 to apply pressure to the rock 24, meanwhile, the rock 24 is clamped, the hydraulic rod 20 stretches to drive the third extrusion plate 23 to descend, the side surface of the rock 24 is extruded, when the permeability of the rock is detected, the fluid is injected into the rock 24 from the fluid injection pipe 6, the permeability of the rock is judged according to the content of the fluid discharged from the fluid output pipe 9, the pressure condition in the pipeline is obtained through the injection pressure sensor 7 and the output pressure sensor 10, the leakage of the fluid is judged through the first pressure gauge 12 and the second pressure gauge 11, when the device is installed, the sucking disc 33 is placed on a desktop, the base 1 is extruded, so that air in the sucking disc 33 is discharged, the air impacts the one-way valve 34, the air pushes the blocking ball 38 to move, the blocking ball 38 drives the connecting rod 36 to move, the first spring 37 contracts, so that the sucking disc 33 is adsorbed on the desktop, when the device is required to be moved, the motor 40 is started, the motor 40 drives the winding shaft 41 to rotate, the winding shaft 41 rotates to drive the cable to tighten, the cable pulls the connecting rod 36 to rise through the guide wheel 39, so that the connecting rod 36 pulls the blocking ball 38 to be separated from the sealing block 35, external air enters from the filter screen on the outer wall of the base 1, so that the internal and external atmospheric pressures of the sucking disc 33 are balanced, so that the sucking disc 33 moves, the sucking disc 33 can ensure the stability of the device in the use process, when the height of the device is adjusted, the two limiting rods 46 on the outer wall of the extending column 43 are pressed, so that the limiting rods 46 squeeze the second springs 45, the limiting rod 46 is retracted from the limiting hole 42, the extending column 43 is pulled to adjust the height, when the height is adjusted to a proper height, the limiting rod 46 is loosened, and the limiting rod 46 is inserted into the limiting hole 42 under the action of the second spring 45 to fix the extending column 43.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a holder for rock core centre gripping, includes base (1), fixed section of thick bamboo (4) and protective housing (25) its characterized in that: the base (1) is cylindrical with the diameter of 10cm and the height of 4cm, the top of the base (1) is provided with a telescopic column (2), the top of the telescopic column (2) is provided with a fixed ring (3), the inner wall of the fixed ring (3) is provided with a fixed cylinder (4) in a penetrating way, and the inner bottom wall of the fixed cylinder (4) is provided with a protective shell (25);
the utility model discloses a base, including base (1), sucking disc (33) are installed in penetrating manner to the bottom of base (1), the blast pipe is installed in penetrating manner at the top of sucking disc (33), check valve (34) are installed to the outer wall of blast pipe, two sets of sealing blocks (35) are installed to the inside diapire of check valve (34), connecting rod (36) are installed in penetrating manner at the top of check valve (34), first spring (37) are installed around the outer wall of connecting rod (36), shutoff ball (38) are installed to the bottom of connecting rod (36), a plurality of guide wheels (39) are installed to the inside roof of base (1), the cable is twined to the outer wall of guide wheel (39), and one end and the one end of connecting rod (36) are connected, motor (40) are installed to the inside diapire of base (1), and receive spool (41) and the other end of cable are connected.
2. The holder for core clamping as recited in claim 1, further comprising: one end of the fixed cylinder (4) is provided with a first spiral cover (5), the outer wall of the first spiral cover (5) is provided with a fluid injection pipe (6) in a penetrating mode, the outer wall of the first spiral cover (5) is provided with an injection pressure sensor (7) in a penetrating mode, the injection pressure sensor (7) is located on one side of the fluid injection pipe (6), the other end of the fixed cylinder (4) is provided with a second spiral cover (8), the outer wall of the second spiral cover (8) is provided with a fluid output pipe (9) in a penetrating mode, and the outer wall of the second spiral cover (8) is provided with an output pressure sensor (10) in a penetrating mode.
3. The holder for core clamping according to claim 2, wherein: an electric telescopic rod (13) is installed on the outer wall of a screw cap (5), the electric telescopic rod (13) is located inside a fixed cylinder (4), a second electric telescopic rod (17) is installed on the outer wall of a second screw cap (8), the second electric telescopic rod (17) is located inside the fixed cylinder (4), a detection cavity (16) is installed on the inner wall of the fixed cylinder (4), a plurality of first pressure sensors (19) are installed on the bottom of the detection cavity (16), the first electric telescopic rod (13) and one end of the second electric telescopic rod (17) are inserted into the detection cavity (16), cylindrical rock (24) is placed on the inner wall of the detection cavity (16), a pressing plate (14) is installed on one end of the first electric telescopic rod (13), a second pressure sensor (15) is installed on the outer wall of the first pressing plate (14), a second pressure sensor (18) is installed on one end of the second electric telescopic rod (17), and a third pressure sensor is installed on the outer wall of the second pressing plate (18).
4. The holder for core clamping as recited in claim 1, further comprising: the hydraulic rod (20) is installed to the inside roof of fixed section of thick bamboo (4), and No. three stripper plates (23) are installed to the bottom of hydraulic rod (20), and hot plate (21) is installed at the top of No. three stripper plates (23), and heating wire (22) are installed to the inner wall of hot plate (21).
5. The holder for core holding according to any one of claims 1 to 4, wherein: the outer walls of the fluid injection pipe (6) and the fluid output pipe (9) are respectively provided with a first pressure gauge (12) and a second pressure gauge (11).
6. The holder for core clamping as recited in claim 1, further comprising: the inner wall of protective housing (25) is installed control chip (26), and buzzer (27) are installed to the inside diapire of protective housing (25).
7. The holder for core clamping as recited in claim 1, further comprising: cushion (47) are installed to the inside diapire of solid fixed ring (3), and a plurality of non-slip raised (28) are installed at the top of cushion (47), and bolt (29) are installed in the top penetration of solid fixed ring (3), and curved fixed plate (30) are installed to the bottom of bolt (29), and a plurality of non-slip blocks (31) are installed to the bottom of fixed plate (30), and handle (32) are installed at the top of bolt (29).
8. The holder for core clamping as recited in claim 1, further comprising: the outer wall of flexible post (2) is equipped with a plurality of spacing holes (42), and extension post (43) are installed in the top penetration of flexible post (2), and riser (44) are installed to the inside diapire of extension post (43), and second spring (45) are all installed to the both sides outer wall of riser (44), and gag lever post (46) are installed to one end of second spring (45).
9. The method of clamping a core according to any one of claims 1 to 8, characterized in that the method of clamping the core comprises:
s1, firstly screwing out a first screw cap (5) and a second screw cap (8), filling rock (24) into a detection cavity (16), then screwing the first screw cap (5) and the second screw cap (8) into a fixed cylinder (4), stretching a first electric telescopic rod (13) and a second electric telescopic rod (17) to drive a first extrusion plate (14) and a second extrusion plate (18) to apply pressure to the rock (24), clamping the rock (24), and stretching a hydraulic rod (20) to drive a third extrusion plate (23) to descend to extrude the side surface of the rock (24);
s2, when the permeability of the rock is detected, fluid is injected into the rock (24) from the fluid injection pipe (6), the permeability of the rock is judged according to the content of the fluid discharged by the fluid output pipe (9), the pressure condition in the pipeline is obtained through the injection pressure sensor (7) and the output pressure sensor (10), and whether the fluid leaks is judged through the first pressure gauge (12) and the second pressure gauge (11);
s3, when the device is installed, the sucker (33) is placed on a desktop, then the base (1) is extruded, so that air in the sucker (33) is discharged, the air impacts the one-way valve (34), the air pushes the blocking ball (38) to move, the blocking ball (38) drives the connecting rod (36) to move, the first spring (37) contracts, so that the sucker (33) is adsorbed on the desktop, when the device needs to be moved, the motor (40) drives the winding shaft (41) to rotate, the winding shaft (41) rotates to drive the cable to tighten, the cable pulls the connecting rod (36) to rise through the guide wheel (39), so that the connecting rod (36) pulls the blocking ball (38) to be separated from the sealing block (35), and the outside air enters from the filter screen on the outer wall of the base (1), so that the internal and external atmospheric pressure of the sucker (33) is balanced, and the sucker (33) can be moved, and the stability of the device in the use process can be ensured;
s4, when the height of the device is adjusted, two limiting rods (46) on the outer wall of the extending column (43) are pressed, the limiting rods (46) squeeze the second springs (45), the limiting rods (46) are retracted from the limiting holes (42), the extending column (43) is pulled to adjust the height, when the height is adjusted to be proper, the limiting rods (46) are loosened, and the limiting rods (46) are inserted into the limiting holes (42) under the action of the second springs (45) to fix the extending column (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342978.1A CN117405576A (en) | 2023-10-17 | 2023-10-17 | Holder for holding rock core and holding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342978.1A CN117405576A (en) | 2023-10-17 | 2023-10-17 | Holder for holding rock core and holding method |
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| Publication Number | Publication Date |
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| CN117405576A true CN117405576A (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311342978.1A Pending CN117405576A (en) | 2023-10-17 | 2023-10-17 | Holder for holding rock core and holding method |
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| CN (1) | CN117405576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118010594A (en) * | 2024-04-09 | 2024-05-10 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Device and method for testing mechanical properties of geothermal exploration sampling rock core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211179458U (en) * | 2019-12-20 | 2020-08-04 | 西南石油大学 | Rock core holder for rock core displacement simulation of offshore heavy oil |
| CN213018549U (en) * | 2020-09-10 | 2021-04-20 | 惠州市特纳电子有限公司 | Attendance machine with two mesh temperature measurement functions |
| CN114544457A (en) * | 2022-01-15 | 2022-05-27 | 江苏华安科研仪器有限公司 | Microwave heating nonmetal rock core holder |
| CN217693189U (en) * | 2022-06-10 | 2022-10-28 | 恒源达(天津)钢铁有限公司 | Photovoltaic support with adjustable shape-anywhere self-adaptation |
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| CN118010594A (en) * | 2024-04-09 | 2024-05-10 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Device and method for testing mechanical properties of geothermal exploration sampling rock core |
| CN118010594B (en) * | 2024-04-09 | 2024-06-04 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Device and method for testing mechanical properties of geothermal exploration sampling rock core |
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