A device and method for ultra-long-distance in-situ measurement of coal seam gas pressure

A coal seam gas pressure and in-situ technology, which is applied in mining equipment, measurement, earthwork drilling and mining, etc., to achieve the effects of convenient construction, real-time assurance, and reduced power consumption

Active Publication Date: 2021-10-26
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0005] In order to solve the problem of fast and efficient in-situ measurement of ultra-long-distance (hundreds of meters) coal seam gas pressure, the present invention provides a device and method for ultra-long-distance in-situ measurement of coal seam gas pressure

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  • A device and method for ultra-long-distance in-situ measurement of coal seam gas pressure
  • A device and method for ultra-long-distance in-situ measurement of coal seam gas pressure
  • A device and method for ultra-long-distance in-situ measurement of coal seam gas pressure

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Embodiment Construction

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples.

[0042] like figure 1 As shown, one in situ is measured by the coal seam gas press, including the housing 10, the housing 10 head and the drill bit 8 with the control valve, which can be threaded; the tail and drill pipe 6 pass The drill rod is shorted 12 detachable connections, and the specifically can make the tail and the drill pipe 6 perform a disconnected latch 12, and the drill bit 8 of the control valve is provided with a water pressure control valve 11.

[0043] Also included: the pressure module 13, the remote communication module 14, the power module 15, and the sealing module 16 in sequentially embedded from the housing 10 head to the tail direction.

[0044] The outer body of the pressure module 13 is provided with a plurality of breathable bores, and the inner is provided with gas pressure sensor 18 and data memory 19; the remote c...

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Abstract

The invention discloses an ultra-long-distance in-situ measuring device and method for coal seam gas pressure. The ultra-long-distance in-situ measurement of coal seam gas pressure through long boreholes belongs to the field of coal mine gas geology and coal mine safety. An in-situ measuring device for coal seam gas pressure, including an external shell and an embedded pressure measuring module, a remote communication module, a power supply module and a hole sealing module; the head of the shell is detachable from a drill bit with a control valve Threaded connection, the tail part is connected with the drill pipe by a detachable plug; the outside of the pressure measurement module is a pressure measurement mesh cover with several air holes, and the gas pressure sensor and data storage are arranged inside; the sealing module can be Realize long-distance in-situ automatic sealing. The invention solves the problems of short measurement distance of traditional gas pressure, inability to measure pressure without roadway and identification of outburst danger, etc., has the advantages of long-distance and multi-point test of gas pressure, and is suitable for long-distance and accurate measurement of gas parameters and identification of outburst danger sex.

Description

Technical field [0001] The present invention relates to the field of mines, and more particularly to an ultra-long distance in situ measurement coal seam gas pressure device and method. Background technique [0002] Coal seam gas pressure is the coal seam highlight risk identification, coal seam highlighting danger prediction, coal seam gas quantity calculation, coal seam gas extract design, coal and gas highlight control, gas extractive and consumer effect evaluation, etc. Main basis, accurate, fast Determination of coal seam gas pressure is of great significance. At present, the gas pressure measurement method is mainly drilled to the coal seam in the roadway, and the hole is formed to form a sealed pressure chamber, and finally the closed-proofing room is in size, the drilling length is generally more than ten meters to dozens of meters. That is, the current determination of coal seam gas pressure can only determine gas pressures in the roadway. At the same time, due to the sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/06E21F17/18
CPCE21B47/06E21F17/18
Inventor 王恩元张超林李忠辉欧建春
Owner CHINA UNIV OF MINING & TECH
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