Coal-bed gas extraction effect dynamic evaluation method
A coal seam gas and gas drainage technology, which is applied in the field of dynamic evaluation of coal seam gas drainage effect, can solve the problems of tight coal seam gas drainage period, mutual restriction, imbalance, etc.
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[0038] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0039] figure 1 It is a dynamic evaluation method of coal seam gas drainage effect in the present invention. Such as figure 1 As shown, the method includes the following steps:
[0040] Step S11: Before the construction of the coal seam gas drainage project, pre-evaluate the coal seam gas drainage effect by using the drilling pre-drainage coal seam gas flow theory, the prediction of the drainage effect and the optimization method of the drainage project.
[0041] Step S12: In the process of coal seam gas drainage, use coal seam gas drainage prediction theory, drainage monitoring and monitoring technology, underground coal seam gas parameter measurement technology and mathematical inversion technology to evaluate the drainage effect in real time.
[0042] Step S13: At the end of coal seam gas drainage, verify whether the drainage meets the standar...
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