定向羽状水平井在晋南沁水盆地煤层气开发应用中存在的问题

Multi-lateral directional horizontal drilling (MLDHD) is a kind of new technology integrating drilling, well completion and stimulation operation and very fit for the development of coalbed methane (CBM) in low-perm formations, so it has good prospects in China. The Qinshui basin is one of the most promising areas for CBM commercization in China, so the exploration and production in the area account for a large proportion in China. Based on an analysis of the features of MLDHD, this paper presents some points that need attention when the multi-lateral directional horizontal drilling technology is applied in the Qinshui basin.