渗透率各向异性及Palmer-Mansoori模型对煤层气产量影响的模拟研究.ppt,* * * * * * * * * * * * * * * * * * Simulation Study of The Effect of Well Spacing, Permeability Anisotropy, and Palmer and Mansoori Model on Coalbed Methane Production Ismail Zulkarnain H