Research Article
Numerical Simulation Research on Hydraulic Fracturing Promoting Coalbed Methane Extraction
Figure 8
Variation of coalbed methane pressure with different initial coalbed pressure. (a) P0 = 2.53 MPa. (b) P0 = 3.53 MPa. (c) P0 = 4.53 MPa. (d) P0 = 5.53 MPa.
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