Core electrofiltration potential measuring gripper

A technology of potential measurement and holder, which is applied in the direction of measurement, electric/magnetic detection for well logging records, borehole/well components, etc. It can solve the problems of inability to measure filter potential, etc., and achieve high practical value and meet Measuring needs, the effect of rapid pressure relief

Inactive Publication Date: 2009-08-19
DAQING OILFIELD CO LTD
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Problems solved by technology

[0003] In order to solve the problem that the conventional rock core natural potential measurement holder cannot measure the filtration potential, the present invention provides a rock core filtration potential measurement holder, which

Method used

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  • Core electrofiltration potential measuring gripper

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with accompanying drawing:

[0009] This kind of core filter potential measurement holder, such as figure 1 As shown, it includes a device bracket 16 with two sides supporting vertical plates, a high-pressure plexiglass container 2, a low-pressure plexiglass container 10, a rock core holder 6, a low-pressure container fixing seat 11, and a handle 14, a thrust ball bearing 13 and a transmission. Screw 12. Wherein, the high-pressure plexiglass container 2 and the low-pressure plexiglass container 10 are all provided with a water injection joint 1 and a drain, and silver electrodes 3 are installed; one side of the high-pressure plexiglass container 2 and one side of the device bracket 16 The side vertical plate is fixedly connected, and the other side is fixedly connected with the core holder 6 and placed horizontally on the arc-shaped supporting plate of the device bracket 16; the core holder 6 has a bu...

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Abstract

The invention provides a core electrofiltration potential measurement clamp holder which mainly solves the problem that the conventional core clamp holder can not measure electrofiltration potentials. The clamp holder is characterized in that after one side of a high-pressure organic glass container (2) is fixedly connected with an upright plate at one side of a device bracket (16), and the other side thereof is fixedly connected with a core fixing mount (6), the high-pressure organic glass container is horizontally arranged on an arc supporting plate of the device bracket (16); the core fixing mount (6) is internally provided with a rubber sealing boot (7) and provided with an air filling connector (9); one side of a low-pressure organic glass container (10) is fixedly connected with a low-pressure container fixing seat (11) and horizontally arranged on an arc supporting plate of the device bracket (16); the low-pressure container fixing seat (11) is connected with a handle (14) which is provided with a thrust ball bearing (13) by a driving screw (12); and the thrust ball bearing (13) and the handle (14) are fixed on an upright plate at the other side of the device bracket (16). The clamp holder has the characteristic of being capable of measuring core electrofiltration potentials.

Description

Technical field: [0001] The invention relates to a device used in the field of rock physics experiments for natural potential logging experiments, in particular to a core holder capable of measuring rock filtration potentials. Background technique: [0002] At present, in the field of petrophysical experiments, when measuring the natural potential of rocks, the traditional holder can only measure the diffusion adsorption potential, but cannot simulate the filtration potential caused by the abnormal pressure between the formation and the drilling mud column. But in fact, the natural potential of rocks in the formation is not only composed of diffusion and adsorption potential, but also filtration potential and oxidation-reduction potential. The oxidation-reduction potential is caused by the presence of metal minerals in the formation. More common, so it has little effect on the actual measurement accuracy. However, the filtered potential will have a great influence on the me...

Claims

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Application Information

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IPC IPC(8): G01V3/18E21B47/00E21B49/00
Inventor 王伟男俞军袁晓燕王丽娟曹雅芳张金莉曹丽
Owner DAQING OILFIELD CO LTD
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