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Semipermeable partition plate core saturation specific resistance measuring device

A technology for measuring device and saturation, which is used in measuring device, permeability/surface area analysis, suspension and porous material analysis, etc. and other problems, to achieve the effect of convenient installation and replacement of cores, reasonable structure, and reduction of contact errors.

Inactive Publication Date: 2015-07-15
CNPC XIBU DRILLING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a semi-permeable diaphragm core saturation resistivity measurement device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of traditional core saturation The contact resistance error of the resistivity joint measurement device is large during measurement, which causes the problem of large measurement error of core resistivity and inconvenient loading and unloading of semi-permeable partitions

Method used

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  • Semipermeable partition plate core saturation specific resistance measuring device
  • Semipermeable partition plate core saturation specific resistance measuring device

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1, as attached figure 1 , 2 As shown, the semi-permeable diaphragm core saturation resistivity measurement device includes a confining pressure cylinder 1, a displacement electrode, an upper cylinder cap 9, a lower cylinder cap 10, and a silver diaphragm ferrule 14; the confining pressure cylinder A rubber sleeve 2 is installed inside 1, the upper end and the lower end of the rubber sleeve 2 are fixedly installed with the upper end and the lower end of the confining pressure cylinder 1 respectively, an air cavity 4 is formed between the rubber sleeve 2 and the inner wall of the confining pressure cylinder 1, The middle part of the confining pressure cylinder 1 has a radial inflation port 3 that passes through the inside and outside and communicates with the air cavity 4. A displacement electrode is fixedly installed in the inner cavity formed by the upper part of the rubber sheath 2 and the upper part of the confining pressure cylinder 1. The confining pr...

Embodiment 2

[0023] Embodiment 2, as the optimization of above-mentioned embodiment, as attached figure 1 , 2 As shown, the displacement electrode includes a displacement pressure connection column 26, a displacement conductive voltage cap 31 and a displacement insulation isolation column 32; In the inner cavity of the displacement pressurization connection column 26, there is an annular installation concave platform 27 on the outer wall of the upper part, and a displacement pressure connection sleeve 28 is installed on the installation concave platform 27, and the outer wall of the displacement pressurization connection sleeve 28 is in contact with the upper The upper inner wall of the cylinder cap 9 is fixedly installed together, the displacement pressurization fixed sleeve 29 is fixedly installed on the installation concave platform 27 above the displacement pressurization connection sleeve 28, and the displacement pressurization connection column 26 has an upper installation on the...

Embodiment 3

[0024] Embodiment 3, as the optimization of above-mentioned embodiment, as attached figure 1 , 2 , 3, a lifting device is fixedly installed on the lower end of the liquid outlet pressurization connecting column 13, and the lifting device includes a lifting connector 41, a lifting shaft 42 and a lifting cylinder 43; Connecting head 41, the lower end of lifting connecting head 41 is fixedly installed with lifting shaft 42, and the lower end and upper end of lifting tube 43 are fixedly installed with lifting lower sealing cap 44 and the lifting upper sealing cap 46 that has piston hole 45 in the center respectively, and the lifting shaft 42 The lower part passes through the piston hole 45 and is installed in the lifting cylinder 43. The lower end of the lifting shaft 42 is fixedly equipped with a piston head 47 and is located in the lifting cylinder 43. The piston head 47 separates the inside of the lifting cylinder 43 into an upper air chamber 48 and a lower air chamber 49. ...

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Abstract

The invention relates to the technical field of a core saturation and specific resistance combined measuring device, and in particular relates to a semipermeable partition plate core saturation specific resistance measuring device. The semipermeable partition plate core saturation specific resistance measuring device comprises a confining pressure drum, a displacement electrode, an upper barrel sealing cap, a lower barrel sealing cap and a silver partition plate clamping sleeve, wherein a rubber sleeve is installed inside the confining pressure drum, the upper end and the lower end of the rubber sleeve are fixedly connected with the upper end and the lower end of the confining pressure drum, respectively, an air cavity is formed between the rubber sleeve and the inner wall of the confining pressure drum, a radial inflating port which penetrates through the confining pressure drum and is communicated with the air cavity is arranged in the middle of the confining pressure drum, and the displacement electrode is fixedly installed in an inner cavity formed between the upper part of the rubber sleeve and the upper part of the confining pressure drum. The semipermeable partition plate core saturation specific resistance measuring device is reasonable and compact in structure, convenient to use, convenient for installing and replacing a core, capable of enabling the core to be efficiently coupled with a measuring electrode so as to guarantee the precise measurement of the liquid outlet quantity of the core, also can guarantee the measuring precision of the saturation core specific resistance and can efficiently reduce the contact error of a core contact resistance tape.

Description

technical field [0001] The invention relates to the technical field of a combined measurement device for core saturation and resistivity, and relates to a device for measuring the resistivity of core saturation with a semi-permeable partition. Background technique [0002] For a long time, the core saturation resistivity measurement device has used the semi-permeable diaphragm displacement to measure the core saturation two-pole method to measure the core saturation resistivity. The confining pressure can be set according to the measurement requirements, but the coupling pressure cannot be set. The displacement end adopts the coupling of rock core and stainless steel measuring electrode, and the liquid outlet adopts the method of direct coupling of rock core, semi-permeable separator and stainless steel electrode. Because the coupling pressure is not fixed, the coupling effect is poor, and the contact error between the core and the electrode is large. As the water saturatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08G01N27/04
Inventor 蔡敏龙
Owner CNPC XIBU DRILLING ENG