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What is coal seam gas pressure?
Release time:
2022-11-04
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What is coal seam gas pressure?
coal seam gas pressure(coalbed gas pressure)，Refers to the pressure on the pore wall caused by the free thermal movement of free gas molecules in the pores of the coal seam.The gas pressure measurement method isWhen drilling into the coal seam from the underground roadway, seal a rigid air guide pipe in the borehole, and measure the stable air pressure in the pipe, that is, the gas pressure. The coal seam gas pressure is affected by many geological factors and changes greatly. In the same geological unit in a well field, the gas pressure in the methane zone usually increases with the increase of depth. Coal seam gas pressure is the basic parameter that determines the gas content and dynamic characteristics of coal seam gas.
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Key words:
Coal seam, gas, pressure, pore, geology, molecular, gas pipe, unit, tube
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