分支
煤层气钻井/ drilling in coalbed methane // drilling in coalbed methane /
通过钻井方式建立煤层气解吸、渗流和采出通道的技术。

煤层气顶底板测量装置/ CBM seam roof and floor measuring tool /CBM seam roof and floor measuring tool
煤层气钻井精确地测出钻头与储层边界距离的部件。水平井聚乙烯筛管完井技术/ PE screen completion technology for horizontal well /PE screen completion technology for horizontal well
煤层气钻井针对煤层机械强度低、裂缝和割理发育,裸眼完井条件下煤粉产出或煤层坍塌易造成井眼堵塞等复杂情况,严重影响煤层气单井产量,同时考虑煤炭后期开采安全而开发的非金属筛管完井方法。