摘要
本文通过煤层的孔隙性、透气性、储层压力、含气饱和度、等温吸附等特征,探讨了煤层甲烷含量随着埋深增加而增高的规律,盆地内断裂西部以NW-NWW向为主,向东过渡为NE-NEE向,断裂显现张性或张扭性,因此,使盆地内部出现西部煤层气含气量高于东部的差异。煤的渗透性较差,透气性能亦较差,同时又具有吸附能力较高的特点。
According to the characters of porosity,permeability,reservoir pressure,gas saturation、 isothermal adsorption,discusses the law of coal-bed gas content increasing as the buried depth increase of coal bed.West fault based mainly on NW-NWW and transits eastward is NE-NEE in basin,fault appeared tension or extension torsional,so,the coal-bed gas content in the west of the basin is more than the east.The permeability of coal is low but adsorption capacity is strong.
出处
《煤炭技术》
CAS
北大核心
2010年第5期154-155,共2页
Coal Technology
关键词
盆地
储层特征
煤层气
赋存
规律
basin
reservoir characteristics
coal-bed gas
storage
law
