安徽宿州芦岭矿区煤层气生产条件分析

Analysis of CBM Recovery Conditions in Anhui Suzhou Luling Mine

本文从地质及储层特征等技术层面上探讨了淮北煤田芦岭煤矿煤层气井的生产条件,这些生产试验井的钻探目的是(1)评估煤层气的生产特性,(2)确定储层的排采条件,(3)评价并改进完井技术,(4)全面评估煤层气生产所面临的问题。勘探结果显示该井区煤层发育稳定、内生裂隙发育、煤层气含气量中等-偏高,含气饱和度较高,表明具有较好的煤层气生产潜力。300m井间距的煤层气生产试验井组已于2010年4月投产,本文着重探讨了CLG09V-01井的煤层气生产条件。

From technical point of view on geology and characteristics of coal reservoir,etc.the paper discusses the production conditions of CBM wells in Luling coal mine in Huaibei coal basin.The purposes of these boring production testing wells are：（1） evaluation of production characteristics of CBM;（2） determination of dewatering and drainage conditions of the reservoir;（3） evaluation and improvement of completion technique;（4） Comprehensive evaluation of problems faced in CBM production.The results of exploration have indicated that coal seams are regularly-developed;the endogenous cleats are well-developed;the gas content of CBM varies from moderate to slightly high;and the degree of gas saturation is high,showing that it has good CBM production potentials.The pilot production testing well with a spacing of 300m was put into production in April 2010.The paper concentrates on CBM production conditions of CLG09V-01 well.