Coal rock upward borehole gas parameter measurement method
A measurement method and gas technology, applied to the measurement of gas parameters in coal and rock upward drilling, and in the field of measurement of gas parameters in coal and rock upward drilling, can solve the problems of easy subsidence of drilling holes and influence on the measurement of gas parameters, and achieve the purpose of suppressing drilling Hole collapse, ensuring the effect of gas drainage, quick disassembly and connection
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[0031] The present invention will be further clearly and completely described below in conjunction with specific embodiments.
[0032] The system used in the gas parameter determination method of coal rock uphole drilling in the present invention, such as figure 1 As shown, it mainly includes a detection device, a blocking device and a measuring device.
[0033] The detection device includes the first pipe body 18, the second pipe body 4 and the third pipe body 2 connected in sequence, wherein the third pipe body extends into the bottom of the borehole 1, and the first pipe body 18 is located at the outermost side of the borehole , the first pipe body 18 can be a drill pipe in the prior art, etc., and the two ends of the second pipe body 4 are provided with threads, and the two ends are respectively matched with the structures in the first pipe body and the third pipe body, which can realize Quick detachable connections such as image 3 As shown, in order to connect more tig...
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