煤层气储层特征,开发开采技术和工艺
goodexhibitionwasobtained.TheDrillingandChamberingTechnique、^,itllHighPressureWaterJetwillprovideasetofnewandeffectivemethodsforundergroundcoalbedmethanedrainage.
Keywords:High
Coalbedpressurewaterjet,Drillingtechnique,Boreholechamberingtechnique,methanedrainage