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Experimental device and experimental method for visually simulating gas drilling and sealing

An experimental device and gas drilling technology, applied in the direction of measuring devices, instruments, surface/boundary effects, etc., can solve the problems of lack of experimental guidance, achieve high strength, improve gas drainage efficiency, and good adhesion

Pending Publication Date: 2022-07-29
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a lack of experimental guidance on how to determine the optimal process parameters for its injection and how to determine the best sealing material

Method used

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  • Experimental device and experimental method for visually simulating gas drilling and sealing
  • Experimental device and experimental method for visually simulating gas drilling and sealing
  • Experimental device and experimental method for visually simulating gas drilling and sealing

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Embodiment Construction

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Terms such as "up", "down", "left", "right", "middle" and "one" quoted in the preferred embodiment are only for the convenience of description and clarity, and are not intended to limit the scope of the present invention. The scope of implementation, the change or adjustment of the relative relationship, and the technical content without substantial change, shall also be regarded as the scope of the present invention.

[0037] like Figure 1-3 As shown, the present invention provides an experimental device for visually simulating gas drilling and sealing, including:

[0038] The drilling simulation system is used to simulate the environment of the downhole drilling 9. The drilling simulation system includes an experimental box 7 whose at least one side is made of transparent material. The top of the simulated coal body is crimped with a loading m...

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Abstract

The invention discloses an experimental device and method for visually simulating gas drilling and sealing, and the device comprises a drilling simulation system which comprises an experimental box body with at least one side surface made of a transparent material, and the experimental box body is filled with a filler for forming a simulated coal body; the grouting system comprises a grouting pump, a grouting pipe, a pressure gauge and a flow meter, the grouting pump is connected to the drill hole through the grouting pipe so as to inject grout of a hole sealing material added with fluorescent powder into the drill hole, and the pressure gauge and the flow meter are arranged on the grouting pipe so as to be used for monitoring pressure and flow in the grouting pipe during grouting; and the visual observation system is used for recording the permeation and diffusion conditions of the slurry in cracks around the drill hole through an image when the slurry of the hole sealing material is injected into the drill hole. The hole sealing material with the determined optimal process parameters and the optimal proportion is applied to grouting hole sealing of actual gas extraction drill holes, so that the hole sealing material and a coal body form a whole after being solidified, the cohesiveness is good, and the strength is high.

Description

technical field [0001] The invention relates to the field of experimental devices for sealing materials, in particular to an experimental device and an experimental method for visually simulating gas drilling and sealing. Background technique [0002] There are many mines with high gas and low permeability in my country, and the problem of gas control is more serious. Gas is an important factor that threatens the safe production of coal mines, and the most critical measure to reduce gas content is gas extraction. At present, the gas extraction efficiency of most mines in my country is not high, and a key factor affecting the gas extraction efficiency is the sealing method. The sealing method is an important part of gas drainage. If the sealing method is unreasonable, it will directly lead to low gas drainage efficiency. [0003] At present, the main sealing methods in my country are grouting and sealing. When grouting and sealing, the flow and penetration of the grouting s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N13/04
CPCG01N33/00G01N13/04
Inventor 潘红宇王军燕杜冠祎张天军宋爽王康贺绥男张磊
Owner XIAN UNIV OF SCI & TECH
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