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Device and method for measuring permeability of combustible ice

A measuring device and permeability technology, which is applied in the field of combustible ice mining, can solve the problems of unreliability, inaccurate results, and inability to apply samples containing combustible ice well

Inactive Publication Date: 2020-07-07
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after the decomposition of combustible ice, the strength of samples containing combustible ice was lower
The above-mentioned water injection method or gas injection method for measuring permeability cannot be well applied to samples containing combustible ice.
Even if the gas injection method and water injection method are used to measure the permeability of samples containing combustible ice, the results obtained are not accurate and unreliable

Method used

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  • Device and method for measuring permeability of combustible ice
  • Device and method for measuring permeability of combustible ice
  • Device and method for measuring permeability of combustible ice

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Embodiment Construction

[0054] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be another element in between. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it may be present interveni...

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Abstract

The invention provides a device and a method for measuring the permeability of combustible ice. The device comprises: a sample holder; a pressure regulating module that is connected with the sample holder through a first pipeline; a magnetic induction device that can be used for storing the sample holder; a displacement module that is communicated with the cavity; and a controller that is connected with the magnetic induction device, and is used for obtaining the permeability of the combustible ice sample according to the T2 spectrum. The method comprises the following steps: obtaining a T2spectrum of the combustible ice sample under a predetermined pressure; and obtaining the permeability of the combustible ice sample according to the T2 spectrum of the combustible ice sample under thepreset pressure. According to the device and the method, the permeability of the combustible ice sample can be accurately measured under the pressure control condition.

Description

technical field [0001] The present application relates to the technical field of combustible ice mining, in particular to a device and method for measuring the permeability of combustible ice. Background technique [0002] Combustible ice is distributed in deep sea sediments or permafrost. It is a crystalline substance formed by natural gas and water under high pressure and low temperature conditions. It is an important energy source used by countries all over the world. [0003] When the formation containing combustible ice is mined, some of the combustible ice in the formation will decompose, which will lead to changes in the permeability of the formation containing combustible ice. The change of the permeability of the formation will often change the strength of the formation, which may lead to the collapse of the formation, which poses a certain threat to the safety of the workers who are mining combustible ice. Therefore, research on the permeability of samples contain...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N13/04G01N24/08
CPCG01N13/04G01N15/088G01N24/081
Inventor 王琳琳程久辉刘化冰丁嘉迪韩强
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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