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Core holder and measuring method thereof

A core holder and holder technology, which is used in measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to measure fatigue characteristics and permeability, and achieve the effect of improving experimental efficiency.

Active Publication Date: 2016-12-14
董润华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current core holder can only measure the permeability of the core or measure the permeability under a certain fixed load condition, and cannot realize the measurement of fatigue characteristics and permeability in the same device

Method used

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  • Core holder and measuring method thereof

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 As shown, a core holder of the present invention mainly includes a holder cylinder 2, a left end cover 1, a right end cover 5, a right plug 6, a right piston 7, a porous gasket 3, a rubber sleeve 4, a confining pressure Chamber 8 , sealing ring 9 , wire ferrule 10 , test fluid inlet 11 , test fluid outlet 12 , confining pressure fluid inlet 14 and confining pressure fluid outlet 13 . The holder barrel 1, the left end cap 1, the right end cap 5, the right plug 6 and the right piston 7 are made of stainless steel. The experimental fluid is water, the confining pressure fluid is oil, the rubber sleeve 4 is polyurethane, and the porous gasket is ZrC. The holder cylinder body 2 is threadedly connected with the left end cap 1 and the right end cap 5 respectively, a porous gasket 3 is placed between the left end cap...

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Abstract

The invention relates to a core holder and a measuring method thereof. The core holder comprises a holder cylinder and a core sample arranged in the holder cylinder, wherein the holder cylinder is respectively connected with a left end cover and a hollow right end cover by a threaded connection; a right piston is arranged in the hollow cavity of the hollow right end cover; a right plug is arranged between the right piston and the inner wall of the hollow right end cover; a rubber sleeve is wrapped outside the core sample, the right part of the left end cover and the left part of the right plug; the cavity among the holder cylinder, core sample, left end cover and hollow right end cover forms a confining pressure chamber; the lower side of the holder cylinder is provided with a confining pressure fluid inlet, and the upper side is provided with a confining pressure fluid outlet; the right plug is provided with a through hole which is an experiment fluid inlet; and the left end cover is provided with a through hole which is an experiment fluid outlet. The invention also discloses a measuring method. The measuring method can be used for measuring mechanical parameters and permeability in one device, and can greatly enhance the experiment efficiency for the experiments in need of simultaneously measuring the fatigue characteristics and permeability of the rock sample.

Description

technical field [0001] The invention mainly relates to a measuring device for rock core permeability and its basic mechanical parameters, in particular to a rock core holder and a measuring method thereof, which is a rock core holder capable of simultaneously measuring mechanical parameters and permeability. Background technique [0002] Permeability is one of the basic properties of materials. In geological exploration and development, especially in the fields of geological exploration, research, production and development of oil and natural gas, it is necessary to take out relevant formation cores from the ground, conduct core physical property analysis experiments, and measure the permeability of relevant cores. , strength, elastic modulus and other physical parameters, to provide reference for actual development. [0003] The permeability of rock is very low, and the current experimental method for measuring low permeability is the transient pressure pulse method. The p...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N3/04
CPCG01N3/04G01N15/0826G01N2203/0062G01N2203/0073G01N2203/0075G01N2203/04
Inventor 杨鹏飞党斐陈曦闫渊
Owner 董润华
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