CN115877044A - Resistivity rock core holder - Google Patents
Resistivity rock core holder Download PDFInfo
- Publication number
- CN115877044A CN115877044A CN202211524337.3A CN202211524337A CN115877044A CN 115877044 A CN115877044 A CN 115877044A CN 202211524337 A CN202211524337 A CN 202211524337A CN 115877044 A CN115877044 A CN 115877044A
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- rod
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- connecting block
- core
- electrode connecting
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- 239000011435 rock Substances 0.000 title claims abstract description 46
- 238000011161 development Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000005498 polishing Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Measuring Fluid Pressure (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The application discloses a resistivity core holder applied to the field of core holding, when two end faces of a core are flat, an electrode connecting block can extrude an electrode gasket layer, so that a plurality of pressed bulges on the electrode gasket layer are fully extruded and contacted with the core, a limiting and fixing effect is achieved on a pressing rod, and the fact that a subsequent mechanism is triggered by mistake is effectively avoided; when rock core both ends face unevenness, can lead to the pressurized arch can not be fully extruded when the electrode gasket layer receives the extrusion, coloured solution in the pressurized gasbag can flow into in the pressurized arch of not fully extruded, and lead to the elasticity notch to open under the pressure effect, thereby mark the regional mark of rock core terminal surface unevenness, make things convenient for follow-up staff to the polishing of rock core terminal surface, and simultaneously, can lead to the display tube rotatory during the rock core terminal surface unevenness, can play the warning effect to the staff, this application realizes the detection of the multiple measuring point pressure and the resistance of rock core through a plurality of pressurized archs, thereby effectively reduce the error.
Description
Technical Field
The application relates to the field of core holding, in particular to a resistivity core holding unit.
Background
At present, a core resistivity measuring device is adopted to measure the resistivity of a laboratory core, the core resistivity measuring device comprises a core holder, the core holder is columnar, electrode plates are arranged on two end faces of the core holder, and after the core is placed into the core holder, two ends of the core are in contact with the electrode plates, so that the resistivity of the core can be measured through the electrode plates.
In the measurement of resistivity parameters of indoor rocks in the petroleum industry, the influence factors on the accuracy of experimental test results are more, and whether the end face of a rock core can be well and stably contacted with a holder electrode has a larger influence on the measurement results, so measures are required to be taken to improve the contact condition of the end face of the rock core and the holder electrode.
The applicant proposes that when a core with an uneven end face is abraded, if the core holder can mark an uneven area and send an alarm to workers, the problem of resistivity error caused by poor contact due to insufficient contact between the electrode pads and the core can be effectively avoided.
Disclosure of Invention
Compared with the prior art, the resistivity core holder is provided, and the electrode assemblies are attached to two end faces of the core through the core holder body, the core positioned in the holder body and the pushing screw rod with one end in threaded connection with the holder body; the electrode slice assembly comprises an electrode connecting block and an electrode gasket layer positioned between the electrode connecting block and the rock core, a plurality of pressed bulges are distributed on one side of the electrode gasket layer facing the rock core, the electrode connecting block is fixed with the electrode gasket layer, and one end of the electrode connecting block, which is far away from the electrode gasket layer, is connected with a pressing rod in a sliding manner; a positioning cylinder extending into the pressure applying rod is fixed on one side of the electrode connecting block, a positioning piece is connected to the inner wall of the positioning cylinder in a sliding mode, a positioning groove is formed in the position, corresponding to the positioning piece, in the electrode connecting block, and the positioning piece partially penetrates through the positioning cylinder to be in contact with the positioning groove.
When two end faces of the rock core are flat, the electrode connecting block can extrude the electrode gasket layer, so that the plurality of pressed bulges on the electrode gasket layer are fully pressed and contacted with the rock core, the pressing rod is limited and fixed, and the false triggering of a subsequent mechanism is effectively avoided; when rock core both ends face unevenness, can lead to the pressurized arch can not be fully extruded when electrode gasket layer receives the extrusion, coloured solution in the pressurized gasbag can flow into in the pressurized arch of not fully extruded to lead to the elasticity notch to open under the pressure effect, thereby mark rock core terminal surface unevenness region, make things convenient for polishing of follow-up staff to the rock core terminal surface.
Optionally, the pressing rod includes a first rod body and a second rod body, the first rod body is located between the pushing screw rod and the electrode connecting block, the electrode connecting block is rotatably connected with the pushing screw rod, the second rod body is located between the inner wall of the holder body and the electrode connecting block, and the second rod body is fixed to the inner wall of the holder body.
Optionally, a buffer gap is reserved between the pressure applying rod and the electrode connecting block, a compression spring is fixed in the buffer gap, and two ends of the compression spring are respectively abutted against the electrode connecting block and the pressure applying rod.
Optionally, the positioning element includes a piston sliding on the inner wall of the positioning cylinder, a push rod fixed on the piston, and a plurality of stop blocks slidably connected to the push rod, and the positioning cylinder is provided with a stop groove corresponding to the stop block, and the push rod and the inner wall of the positioning cylinder are fixed with a return spring.
Optionally, a limiting block protruding outwards is arranged inside the positioning groove, and the positioning groove extends along the length direction of the electrode connecting block.
Optionally, the inside rotation of the pressure bar is connected with a display cylinder, and the display cylinder has seted up the guiding groove towards the one end surface of rock core, and the inside sliding connection of guiding groove has a guide bar, and the one end that the guiding groove was kept away from to the guide bar is fixed with the electrode connecting block, and the inside fluting that holds the guide bar and slide in of seting up of pressure bar, pressure bar is L shape.
Optionally, a color development layer is fixed on the outer side of one end of the display cylinder, which is far away from the pressure application rod, and an observation groove is formed in the position of the holder body, which corresponds to the color development layer.
Optionally, the pressure-bearing protrusion includes a first trigger cavity and a second trigger cavity located inside the first trigger cavity, and a diaphragm separating the first trigger cavity from the second trigger cavity is fixed between the first trigger cavity and the second trigger cavity.
Optionally, a medium is filled in the first trigger cavity, and the first trigger cavity is communicated with the positioning cylinder through a hole.
Optionally, an elastic notch is fixed at a peak of the first trigger cavity, the first trigger cavity is filled with a colored solution, and a pressurized air bag communicated with the first trigger cavity is arranged between the push plate and the pressure applying rod.
Compare in prior art, the advantage of this application lies in:
(1) When two end faces of the rock core are flat, the electrode connecting block can extrude the electrode gasket layer, so that the plurality of pressed bulges on the electrode gasket layer are fully extruded and contacted with the rock core, the pressing rod is limited and fixed, and the accidental triggering of a subsequent mechanism is effectively avoided; when rock core both ends face unevenness, can lead to the pressurized arch can not be fully extruded when the electrode gasket layer receives the extrusion, coloured solution in the pressurized gasbag can flow into in the pressurized arch of not fully extruded to lead to the elasticity notch to open under the pressure effect, thereby mark the regional mark of rock core terminal surface unevenness, make things convenient for follow-up staff to the polishing of rock core terminal surface, this application realizes the detection of the many measurement stations pressure and the resistance of rock core through a plurality of pressurized archs, thereby effectively reduce the error.
(2) Can lead to the pressurized arch to be fully extruded when electrode gasket layer receives the extrusion, make the medium in the pressurized arch fully not flow into a location section of thick bamboo, afterwards, the coloured solution in the pressurized gasbag can flow into in the pressurized arch that is not fully extruded to lead to the elasticity notch to open under the pressure effect, carry out mark processing to the regional unevenness of rock core terminal surface.
(3) The elastic notch is made of annular elastic rubber materials, and the liquid outlet can be automatically sealed by means of elasticity of the elastic notch under the normal state, so that liquid leakage is effectively avoided.
(4) The cooperation of guide bar and guiding groove is used, makes a display cylinder can autogiration at the removal in-process, and so the color development layer also can autogiration, makes the color development layer correspond fluting department, that is to say, can lead to a display cylinder rotatory when the rock core terminal surface unevenness to change the colour in the fluting, can in time play the warning effect to the staff.
(5) Because the pressure applying rod is rotationally connected with the pushing screw rod, the pressure applying rod cannot rotate along with the pushing screw rod, so that the pressure applying rod can stably move, and the interference on the warning of the color development layer is effectively avoided.
Drawings
FIG. 1 is a schematic cross-sectional structural view of the present application;
FIG. 2 is an enlarged view of part A of FIG. 1 of the present application;
FIG. 3 is a schematic view of the present application showing a configuration in which the pressed protrusions are not sufficiently pressed;
FIG. 4 is an enlarged view of the portion B of FIG. 3;
FIG. 5 is a perspective view of the electrode pad layer and the pressed protrusions of the present application;
FIG. 6 is a cross-sectional structural view of a compression lobe of the present application;
FIG. 7 is a schematic diagram of a core staining structure of the present application;
FIG. 8 is a perspective view of the present application;
FIG. 9 is a schematic top view of the present application;
fig. 10 is a perspective view of the display cylinder and the guide rod according to the present application.
The reference numbers in the figures illustrate:
1. a holder body; 2. a screw is advanced; 3. an electrode connecting block; 4. an electrode pad layer; 5. a pressed projection; 6. applying a pressure rod; 7. a positioning cylinder; 8. a first rod body; 9. a second rod body; 10. a piston; 11. a blocking block; 12. a limiting block; 13. a display cartridge; 14. a guide groove; 15. a guide rod; 16. a color development layer; 17. a first trigger chamber; 18. an elastic notch; 19. a pressurized air bag; 20. and (6) observing the groove.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments in the present application belong to the protection scope of the present application.
Example 1:
the application discloses a resistivity core holder, please refer to fig. 1-5, which comprises a holder body 1, a core positioned in the holder body 1, and a pushing screw rod 2 with one end in threaded connection with the holder body 1, wherein two end faces of the core are respectively attached with an electrode assembly; the electrode plate assembly comprises an electrode connecting block 3 and an electrode pad layer 4 positioned between the electrode connecting block 3 and the rock core, a plurality of pressure protrusions 5 are distributed on one side, facing the rock core, of the electrode pad layer 4, the electrode connecting block 3 is fixed with the electrode pad layer 4, and a pressure applying rod 6 is connected to one end, far away from the electrode pad layer 4, of the electrode connecting block 3 in a sliding mode; a positioning cylinder 7 extending to the inside of the pressure applying rod 6 is fixed on one side of the electrode connecting block 3, a positioning piece is connected to the inner wall of the positioning cylinder 7 in a sliding mode, a positioning groove is formed in the position, corresponding to the positioning piece, of the inside of the electrode connecting block 3, and the positioning piece partially penetrates through the positioning cylinder 7 to be in contact with the positioning groove.
Referring to fig. 1-8, the pressing rod 6 includes a first rod 8 and a second rod 9, the first rod 8 is located between the pushing screw 2 and the electrode connecting block 3, the first rod 8 and the pushing screw 2 are rotatably connected, the second rod 9 is located between the inner wall of the holder body 1 and the electrode connecting block 3, the second rod 9 is fixed to the inner wall of the holder body 1, a buffer gap is left between the pressing rod 6 and the electrode connecting block 3, a compression spring is fixed in the buffer gap, and two ends of the compression spring are respectively abutted to the electrode connecting block 3 and the pressing rod 6, the positioning member includes a piston 10 sliding on the inner wall of the positioning cylinder 7, a push rod fixed to the piston 10, and a plurality of blocking blocks 11 slidably connected to the push rod, and a blocking groove is formed in the position of the positioning cylinder 7 corresponding to the blocking block 11, a return spring is fixed to the inner wall of the positioning cylinder 7, a limiting block 12 protruding outward is formed in the positioning groove, the positioning groove extends along the length direction of the electrode connecting block 3, the pressing rod 6 is L-shaped, a medium is filled in the second triggering chamber and is communicated with the positioning chamber 7, a push plate 17, and a push plate is communicated with a first trigger chamber 17 filled with a colored solution filled in the first trigger chamber 17.
When two end faces of the rock core are smooth, a worker can push the electrode connecting block 3 through the compression spring by rotating the pushing screw rod 2, so that the electrode connecting block 3 can extrude the electrode gasket layer 4, the plurality of pressed bulges 5 on the electrode gasket layer 4 are fully in extrusion contact with the rock core, and a medium in the pressed bulges 5 can be liquid or gas, the medium can flow into the positioning cylinder 7 through the holes, and then the piston 10 can be pushed to move, so that the pushing rod on the piston 10 can push the plurality of blocking blocks 11 to extend into the positioning grooves and abut against the limiting blocks 12, and the pressing rod 6 is limited and fixed, and the false triggering of a subsequent mechanism is effectively avoided;
in addition, when two end surfaces of the rock core are not flat, the pressed bulge 5 cannot be fully pressed when the electrode pad layer 4 is pressed, so that media in the pressed bulge 5 cannot fully flow into the positioning cylinder 7, the piston 10 cannot move to a preset position, the extrusion force on the push rod is not sufficient, the stop block 11 cannot abut against the limit block 12, the pressing rod 6 can continue to press the electrode connecting block 3, the pressed air bag 19 can be contracted in the moving process of the pressing rod 6, the colored solution in the pressed air bag 19 can flow into the pressed bulge 5 which is not fully pressed, and the elastic notch 18 is opened under the action of pressure, so that an area with an uneven end surface of the rock core is marked, and subsequent workers can conveniently polish the end surface of the rock core; the detection of the multi-measuring-point pressure and the resistance of the rock core is realized through the plurality of the pressed bulges 5, so that the error is effectively reduced.
In addition, the pressed bulge 5 and the electrode gasket layer 4 are both made of elastic leather materials, the elastic notch 18 is made of annular elastic rubber materials, the liquid outlet can be automatically sealed by means of elasticity of the elastic notch under a normal state, and liquid leakage is effectively avoided.
Example 2:
compared with embodiment 1, in embodiment 2 of the present application, a color development layer 16 is added to remind a worker, please refer to fig. 3-4 and fig. 9-10, the inside of the pressing rod 6 is rotatably connected with a display cylinder 13, a guide groove 14 is formed in a surface of one end, facing the core, of the display cylinder 13, a guide rod 15 is slidably connected inside the guide groove 14, one end, away from the guide groove 14, of the guide rod 15 is fixed to the electrode connection block 3, a groove for accommodating the guide rod 15 to slide into is formed inside the pressing rod 6, the color development layer 16 is fixed on an outer side of one end, away from the pressing rod 6, of the display cylinder 13, an observation groove is formed in a position, corresponding to the color development layer 16, of the holder body 1, the pressed protrusion 5 includes a first trigger cavity 17 and a second trigger cavity located inside the first trigger cavity 17, and a diaphragm for partitioning the first trigger cavity 17 and the second trigger cavity is fixed between the first trigger cavity and the second trigger cavity.
Meanwhile, the pressing rod 6 can drive the display cylinder 13 inside to move, the guide rod 15 and the guide groove 14 are matched for use, the display cylinder 13 can rotate automatically in the moving process, the color development layer 16 can also rotate automatically, the color development layer 16 corresponds to the groove, and the display cylinder is convenient for workers to watch, namely, the display cylinder 13 can rotate when the end face of the rock core is uneven, so that the color in the groove is changed, a reminding effect can be timely played for the workers, and the problem that the resistivity error caused by poor contact is caused due to insufficient contact of the rock core is solved. Wherein, the 6 surfaces of pressure bar are equipped with outside sand grip, realize the steady removal of pressure bar 6 through the sand grip, and can not take place to rotate at removal in-process self.
When two end faces of the rock core are flat, the electrode connecting block 3 can extrude the electrode pad layer 4, so that the plurality of pressed bulges 5 on the electrode pad layer 4 are fully in extrusion contact with the rock core, the limiting and fixing effect on the pressing rod 6 is achieved, and the false triggering of a subsequent mechanism is effectively avoided; when rock core both ends face unevenness, can lead to the protruding 5 of pressurized can not be fully extruded when electrode pad layer 4 receives the extrusion, coloured solution in the pressurized gasbag 19 can flow into not by fully extruded pressurized protruding 5 to lead to elastic notch 18 to open under the pressure effect, thereby mark the regional of rock core end face unevenness, make things convenient for polishing of follow-up staff to the rock core end face.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and the equivalent replacement or change according to the technical solution and the improvement concept of the present application in the technical scope of the present application should be covered by the scope of the present application.
Claims (10)
1. A resistivity rock core holder comprises a holder body (1), a rock core positioned in the holder body (1) and a propelling screw (2) with one end in threaded connection with the holder body (1), and is characterized in that two end faces of the rock core are respectively attached with an electrode assembly;
the electrode plate assembly comprises an electrode connecting block (3) and an electrode gasket layer (4) positioned between the electrode connecting block (3) and the rock core, a plurality of pressed bulges (5) are distributed on one side, facing the rock core, of the electrode gasket layer (4), the electrode connecting block (3) is fixed with the electrode gasket layer (4), and one end, far away from the electrode gasket layer (4), of the electrode connecting block (3) is connected with a pressing rod (6) in a sliding mode;
a positioning cylinder (7) extending into the pressing rod (6) is fixed on one side of the electrode connecting block (3), a positioning piece is connected to the inner wall of the positioning cylinder (7) in a sliding mode, a positioning groove is formed in the position, corresponding to the positioning piece, in the electrode connecting block (3), and the positioning piece penetrates through the positioning cylinder (7) to be in contact with the positioning groove.
2. The resistivity core holder according to claim 1, wherein the pressure applying rod (6) comprises a first rod body (8) and a second rod body (9), the first rod body (8) is located between the pushing screw (2) and the electrode connecting block (3), the first rod body (8) is rotatably connected with the pushing screw (2), the second rod body (9) is located between the inner wall of the holder body (1) and the electrode connecting block (3), and the second rod body (9) is fixed with the inner wall of the holder body (1).
3. The resistivity core holder according to claim 2, wherein a buffer gap is reserved between the pressure applying rod (6) and the electrode connecting block (3), a compression spring is fixed in the buffer gap, and two ends of the compression spring are respectively abutted against the electrode connecting block (3) and the pressure applying rod (6).
4. The resistivity core holder according to claim 1, wherein the positioning member comprises a piston (10) sliding with the inner wall of the positioning cylinder (7), a push rod fixed on the piston (10), and a plurality of blocking blocks (11) connected to the push rod in a sliding manner, a blocking groove is formed in the position of the positioning cylinder (7) corresponding to the blocking blocks (11), and a return spring is fixed on the inner walls of the push rod and the positioning cylinder (7).
5. Resistivity core holder according to claim 4, characterized in that the positioning groove is provided with a limiting block (12) protruding outwards and extends along the length of the electrode connection block (3).
6. The resistivity core holder as claimed in claim 1, wherein the pressure applying rod (6) is rotatably connected with a display cylinder (13) inside, a guide groove (14) is formed in one end surface, facing the core, of the display cylinder (13), a guide rod (15) is slidably connected inside the guide groove (14), one end, far away from the guide groove (14), of the guide rod (15) is fixed to the electrode connecting block (3), a groove for accommodating the guide rod (15) to slide into is formed inside the pressure applying rod (6), and the pressure applying rod (6) is L-shaped.
7. The resistivity core holder according to claim 6, wherein a color development layer (16) is fixed on the outer side of one end of the display cylinder (13) far away from the pressure application rod (6), and an observation groove (20) is formed in the holder body (1) corresponding to the color development layer (16).
8. The resistivity core holder according to claim 1, wherein the pressure bearing bulge (5) comprises a first triggering chamber (17) and a second triggering chamber located inside the first triggering chamber (17), and a diaphragm separating the first triggering chamber (17) from the second triggering chamber is fixed between the first triggering chamber (17) and the second triggering chamber.
9. The resistivity core holder according to claim 8, wherein the second triggering chamber is filled with a medium and is communicated with the positioning cylinder (7) through a hole.
10. The resistivity core holder according to claim 1, wherein an elastic notch (18) is fixed at the wave crest of the first triggering cavity (17), the first triggering cavity (17) is filled with a colored solution, and a pressurized air bag (19) communicated with the first triggering cavity (17) is arranged between the push plate and the pressure applying rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211524337.3A CN115877044B (en) | 2022-11-30 | 2022-11-30 | Resistivity core holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211524337.3A CN115877044B (en) | 2022-11-30 | 2022-11-30 | Resistivity core holder |
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| Publication Number | Publication Date |
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| CN115877044A true CN115877044A (en) | 2023-03-31 |
| CN115877044B CN115877044B (en) | 2024-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211524337.3A Active CN115877044B (en) | 2022-11-30 | 2022-11-30 | Resistivity core holder |
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| CN (1) | CN115877044B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117367963A (en) * | 2023-10-27 | 2024-01-09 | 成都环泰睿诚科技有限公司 | Radar chip test system with convenient operation terminal |
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|---|---|---|---|---|
| CN117367963A (en) * | 2023-10-27 | 2024-01-09 | 成都环泰睿诚科技有限公司 | Radar chip test system with convenient operation terminal |
| CN117367963B (en) * | 2023-10-27 | 2024-04-26 | 成都环泰睿诚科技有限公司 | Radar chip test system with convenient operation terminal |
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| Publication number | Publication date |
|---|---|
| CN115877044B (en) | 2024-07-05 |
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