古叙矿区龙潭组煤层气开发方式研究

Research on coalbed methane development mode in Longtan formation of Guxu mining area

针对古叙矿区煤层气工作进展缓慢,未实现商业化抽采的现状,对古叙矿区地质情况进行了分析,对薄煤层群及构造煤的煤层气开发方式进行了深入研究。提出在薄煤层群可采取多煤层合采的方式、在构造煤可采用纳米膜新型压裂液扩孔的方式,来提高古叙矿区煤层(系)气抽采效果的技术路线。认为古叙矿区煤层(系)气具有良好的开发前景,可规模化开发。

In view of the slow progress of coalbed methane(CBM) development and the current situation of non-commercial extraction in Guxu mining area, the geological conditions of Guxu mining area were analyzed, and the coalbed methane development mode of thin coal seams group and tectonic coal were elaborated. The technical route of increasing CBM or coal measure methane(CMM) extraction effects was put forward, including using combined mining technology for thin coal seams group and a kind of new nanometer film fracturing fluid for broadening hole for tectonic coal. The results showed that Guxu mining area had favorable large-scale development prospects of CBM/CMM.