CN202583323U - Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity - Google Patents
Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity Download PDFInfo
- Publication number
- CN202583323U CN202583323U CN 201220249149 CN201220249149U CN202583323U CN 202583323 U CN202583323 U CN 202583323U CN 201220249149 CN201220249149 CN 201220249149 CN 201220249149 U CN201220249149 U CN 201220249149U CN 202583323 U CN202583323 U CN 202583323U
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- partition board
- plunger
- shell body
- permeable partition
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Abstract
The utility model relates to a laboratory rock electrical measuring device, and particularly relates to a clamp holder for a semi-permeable partition board method to jointly detect a capillary pressure resistivity. The clamp holder for the semi-permeable partition board method to jointly detect the capillary pressure resistivity comprises a pipeline, an upper prop plunger, a glue sheath, electrodes, a semi-permeable partition board, a lower prop plunger, a confining pressure pump, a water metering pipe and a soft conductive spacer. The upper prop plunger and the lower prop plunger are respectively placed inside the shell body, and a hollow structure is between the upper prop plunger and the lower prop plunger. The upper portion of the shell body is connected with the pipeline through the upper prop plunger, the lower portion of the shell body is connected with the water metering pipe through the lower prop plunger, and the inner wall of the shell body is provided with the glue sheath. A plurality of electrodes are arranged on the glue sheath, and the semi-permeable partition board is disposed between the glue sheath and the lower prop plunger. One side of the shell body is connected with the confining pressure pump, and the soft conductive spacer is mounted between the shell body and the glue sheath. The clamp holder for the semi-permeable partition board method to jointly detect the capillary pressure resistivity has the advantages that the continuation of the capillary force during the displacement is ensured, and meanwhile, the influence of the contact resistance on a rock sample resistivity increase rate measurement and a saturation prime calculation can be reduced and even eliminated so that the accuracy of the calculation results is ensured.
Description
Technical field
The utility model relates to a kind of laboratory rock electrical measurement device, particularly a kind of clamper that is used for the translocation of semi-permeable baffle method capillary pressure resistivity.
Background technology
The translocation of semi-permeable baffle method capillary pressure curve resistivity is mainly used in the measurement of Archie formula resistance Magnification, is used for electric logging calculating reservoir WS to obtain rock sample SEXP n.Owing to can guarantee the balance of rock sample capillary force and resistivity, the translocation of semi-permeable baffle method capillary pressure curve resistivity is present more advanced rock sample resistivity measurement method.Used clamper is that Haas is reined in clamper, and rock sample directly contacts with metal plunger is general.Find to exist contact resistance bigger than normal and make resistance Magnification, the power function of measurement fit the saturation degree prime number n problem bigger than normal that obtains in actual the use.Contact resistance reason bigger than normal is: 1) because there are certain roughness and rigidity in the rock sample surface, plunger and rock sample end face leave the space, are nonconducting gas or oily filling in the space; 2) when with the saline flow of gas or gasoline displacement rock sample, after the water in the kapillary of corresponding displacement pressure was displaced, plunger can further reduce with the contact area of conduction salt solution.Adopt existing clamper, experiment finds that the low more then contact resistance of factor of porosity, permeability of sandstone rock sample is big more, and the SEXP n of measurement can reach 6-8, is higher than general 1-3 numerical value far away; Therefore, be necessary to improve.
The utility model content
The purpose of the utility model is exactly the above-mentioned defective that exists to prior art, and a kind of clamper that is used for the translocation of semi-permeable baffle method capillary pressure resistivity is provided.
Its technical scheme is: comprise pipeline, upper plug, gum cover, electrode, semi-permeable dividing plate, lower plunger, confined pressure pump, water outlet gauge line, compliant conductive pad, enclosure interior is respectively equipped with upper plug and lower plunger, is hollow structure between upper plug and the lower plunger; The upper plug associated line is passed on the top of housing; Lower part of frame is passed lower plunger and is connected the water outlet gauge line, and the inwall of housing is provided with gum cover, and described gum cover is provided with a plurality of electrodes; Be provided with semi-permeable dividing plate between gum cover and the lower plunger; One side of housing connects the confined pressure pump, is provided with the compliant conductive pad between housing and the gum cover, and described compliant conductive pad is provided with a plurality of apertures.
The beneficial effect of the utility model is: capillary force is continuous in the time of can guaranteeing displacement, can reduce and even eliminate contact resistance again to the influence that rock sample resistivity Magnification is measured, the saturation degree prime number calculates, and guarantees the accuracy of result of calculation.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Among the last figure: pipeline 1, upper plug 2, gum cover 3, rock sample 4, electrode 5, semi-permeable dividing plate 6, lower plunger 7, confined pressure pump 8, water outlet gauge line 9, compliant conductive pad 10.
Embodiment
In conjunction with accompanying drawing 1, the utility model is done further to describe:
The utility model comprises pipeline 1, upper plug 2, gum cover 3, rock sample 4, electrode 5, semi-permeable dividing plate 6, lower plunger 7, confined pressure pump 8, water outlet gauge line 9, compliant conductive pad 10, housing 11; Housing 11 inside are respectively equipped with upper plug 2 and lower plunger 7; Be hollow structure between upper plug 2 and the lower plunger 7, upper plug 2 associated lines 1 are passed on the top of housing 11, and the bottom of housing 11 is passed lower plunger 7 and connected water outlet gauge line 8; The inwall of housing 11 is provided with gum cover 3; Described gum cover 3 is provided with a plurality of electrodes 5, is provided with semi-permeable dividing plate 6 between gum cover 3 and the lower plunger 7, and a side of housing 11 connects confined pressure pump 8; Be provided with compliant conductive pad 9 between housing 11 and the gum cover 3, described compliant conductive pad 9 is provided with a plurality of apertures.
During use; Rock sample 4 is placed in the hollow structure of housing; The compliant conductive pad that increases punching at the two ends up and down of rock sample is as couplings, and hole can be used as the passage of capillary force contact, and the compliant conductive shim body is then as the couplings of resistance measurement; Because compliant conductive pad deformability is strong, the contact area that can increase conduction salt solution in plunger, semi-permeable dividing plate and the rock sample reduces contact resistance.The resistance of compliant conductive pad also can use steel column plug scale under the temperature of testing, pressure condition to obtain in advance simultaneously, obtains rock sample resistance after in overall measurement resistance, deducting.Finally, realize reducing and even eliminating the influence that contact resistance calculates the measurement of rock sample resistivity Magnification, saturation degree prime number n.
Claims (1)
1. clamper that is used for the translocation of semi-permeable baffle method capillary pressure resistivity; It is characterized in that: comprise pipeline (1), upper plug (2), gum cover (3), electrode (5), semi-permeable dividing plate (6), lower plunger (7), confined pressure pump (8), water outlet gauge line (9), compliant conductive pad (10), housing (11); Housing (11) inside is respectively equipped with upper plug (2) and lower plunger (7); Between upper plug (2) and the lower plunger (7) is hollow structure, and upper plug (2) associated line (1) is passed on the top of housing (11), and the bottom of housing (11) is passed lower plunger (7) and connected water outlet gauge line (8); The inwall of housing (11) is provided with gum cover (3); Described gum cover (3) is provided with a plurality of electrodes (5), is provided with semi-permeable dividing plate (6) between gum cover (3) and the lower plunger (7), and a side of housing (11) connects confined pressure pump (8); Be provided with compliant conductive pad (9) between housing (11) and the gum cover (3), described compliant conductive pad (9) is provided with a plurality of apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249149 CN202583323U (en) | 2012-05-25 | 2012-05-25 | Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249149 CN202583323U (en) | 2012-05-25 | 2012-05-25 | Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583323U true CN202583323U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249149 Expired - Fee Related CN202583323U (en) | 2012-05-25 | 2012-05-25 | Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583323U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698216A (en) * | 2014-01-02 | 2014-04-02 | 西南石油大学 | Capillary pressure stress sensitivity test device and capillary pressure stress sensitivity test method |
| CN106324214A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Major-diameter core capillary pressure curve and bound water saturation measuring apparatus |
| CN107255613A (en) * | 2017-07-07 | 2017-10-17 | 西南石油大学 | A kind of dynamic capillary force experimental evaluation system of reservoir rockses |
| CN107725046A (en) * | 2017-10-17 | 2018-02-23 | 西南石油大学 | The apparatus and method of capillary force during a kind of evaluation reservoir water |
-
2012
- 2012-05-25 CN CN 201220249149 patent/CN202583323U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698216A (en) * | 2014-01-02 | 2014-04-02 | 西南石油大学 | Capillary pressure stress sensitivity test device and capillary pressure stress sensitivity test method |
| CN103698216B (en) * | 2014-01-02 | 2016-01-20 | 西南石油大学 | A kind of stress sensitive system safety testing device of capillary pressure and method |
| CN106324214A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Major-diameter core capillary pressure curve and bound water saturation measuring apparatus |
| CN107255613A (en) * | 2017-07-07 | 2017-10-17 | 西南石油大学 | A kind of dynamic capillary force experimental evaluation system of reservoir rockses |
| CN107725046A (en) * | 2017-10-17 | 2018-02-23 | 西南石油大学 | The apparatus and method of capillary force during a kind of evaluation reservoir water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140525 |