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Coal sample crack penetration testing device and testing method thereof

A technology for penetration testing and coal samples, which is used in measurement devices, fuel oil testing, and sample preparation for testing. The effect of design science

Active Publication Date: 2019-11-12
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of effective exploration to improve coal reservoirs by means of heating, it is not only costly to conduct experiments underground, but it is also difficult to observe the law of fracture expansion.

Method used

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  • Coal sample crack penetration testing device and testing method thereof
  • Coal sample crack penetration testing device and testing method thereof
  • Coal sample crack penetration testing device and testing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as Figure 1-Figure 5As shown, the coal sample crack penetration test device includes a circular fixing plate 1, a lower positioning installation assembly and an upper positioning installation assembly. The lower positioning installation assembly and the upper positioning installation assembly have the same structure and are symmetrical up and down. The lower positioning installation assembly and the upper positioning installation assembly The installation components are fixedly connected, a vertically arranged coal sample column 6 is arranged between the lower positioning installation assembly and the upper positioning installation assembly, and the circular fixing plate 1 is arranged horizontally. Straight support legs 4, the lower positioning installation assembly is fixedly installed on the upper surface of the circular fixed plate 1, the...

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Abstract

The invention discloses a coal sample crack penetration testing device. The coal sample crack penetration testing device comprises a circular fixed plate, a lower positioning mounting assembly and anupper positioning mounting assembly; the lower positioning mounting assembly is fixedly connected with the upper positioning mounting assembly; a coal sample column is arranged between the lower positioning mounting assembly and the upper positioning mounting assembly; the lower positioning mounting assembly is mounted on the upper surface of the circular fixed plate; the upper side of the upper positioning mounting assembly is fixedly provided with a first annular fixed plate; a plurality of lifting assemblies are arranged between the circular fixed plate and the first annular fixed plate ina circular array mode; each lifting assembly is provided with a penetrating mechanism and a crack observation mechanism; a plurality of heating resistance rods are arranged between the lower positioning mounting assembly and the upper positioning mounting assembly in a circular array mode; and a rotary adjusting mechanism is mounted on the first annular fixed plate. The coal sample crack penetration testing device is scientific in design and reasonable in structure, can be used for economically and effectively exploring crack change rules of coal reservoirs of different coal ranks at differenttemperatures, and provides a visual and quantitative research method for coal reservoir reform.

Description

technical field [0001] The invention relates to the technical field of coal seam penetration testing, in particular to a coal sample crack penetration testing device and a testing method thereof. Background technique [0002] As a clean energy, the development and utilization of coalbed methane is not only conducive to solving coal mine safety problems, but also conducive to ensuring the supply of natural gas in my country and reducing greenhouse gas emissions. my country is rich in coalbed methane resources, but so far the exploration and development effect of coalbed methane is not satisfactory, and the low permeability of coal reservoirs has become an important factor restricting the output of coalbed methane. [0003] In the process of coalbed methane development, fracturing is usually used to reform coal reservoirs. However, traditional fracturing will not only cause water pollution and may induce earthquakes, but more importantly, for softer coal reservoirs such as low...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N33/22G01N1/28G01N1/44
CPCG01N1/28G01N1/44G01N15/0806G01N15/0826G01N33/222
Inventor 辛福东许浩汤达祯
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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