Triaxial core holder

A core holder, three-axis technology, used in instruments, scientific instruments, material analysis using sonic/ultrasonic/infrasonic waves, etc.

Active Publication Date: 2009-06-03
南通市飞宇石油科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the currently used triaxial core holders cannot truly simulate the environmental conditions of the formation where the core is located

Method used

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Embodiment Construction

[0012] The following describes the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the triaxial core holder of the present invention has a pressure cap 1, a left plug 2, a core chamber 3, a left core plug 4, a positioning washer 5 and a small left pressure cap 6 on the left part, and the right part An axial piston 7, a right small pressure cap 8, a right plug 9 and a right core plug 10 are provided, and a rubber sleeve 11 is arranged on the periphery of the rock core chamber 3, and the rubber sleeve 11 is connected with two pairs of pistons 12 through a connecting plate, and the piston 12 There are two pressure-bearing cylinders 13 connected to the outer side. Two pairs of pistons 12 are respectively arranged in horizontal and vertical directions.

[0014] The working process of the triaxial core holder of the present invention is:

[0015] 1) Install the core first, then install the core chamb...

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Abstract

The invention relates to a triaxial core holder. A pressure cap, a left plug, a core chamber, a left core plug, a positioning washer and a left small pressure cap are arranged at the left part of the core holder, and an axial pressure piston, a right small pressure cap, a right plug and a right core plug are arranged at the right part thereof. The triaxial core holder is characterized in that a gum cover is arranged on the periphery of the ore chamber and connected with two pairs of pistons through connecting plates; and two pressure-bearing cylinders are connected on the outer sides of the pistons. By adopting three groups of pistons (horizontal, vertical and axial), the triaxial core holder can simulate the holder with two pressures at most than before. The invention can better simulate the three-dimensional stressed situation of the core in a stratum, and the three groups of pressures can be freely adjusted, therefore, the stressed situation of the stratum can be truly simulated, so that the experimental data is closer to actual data inside the stratum. The invention can provide a better manner for petroleum exploration.

Description

technical field [0001] The invention relates to a rock core holder, in particular to a rock core holder used for analyzing the physical properties of rock cores in the research and development of geological exploration, especially in the geological exploration, research and development of oil and natural gas. Background technique [0002] In the research and development of geological exploration, especially in the 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 porosity, permeability, resistivity, and acoustic time difference of relevant cores Conduct displacement experiments related to research and development. Therefore, there is a need to realize true triaxial research on triaxial core holders. [0003] The axial pressure, confining pressure and displacement pressure of the three-axis core holder c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N27/04G01N29/26
Inventor 邰九龙许文革王刚涛
Owner 南通市飞宇石油科技开发有限公司
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