沁水煤层气田樊庄区块直井产出特征及排采控制方法

Output Characteristics of Vertical Wells and Dewatering Control Method Used in Fanzhuang Block of Qinshui CBM Field

沁水盆地樊庄区块煤层气开采已初具规模,目前最早投产的煤层气井生产时间已接近4年。通过生产动态数据的跟踪分析,结合本区煤层储层特征,对该区煤层气井的排采特点有了一定的认识,并将煤层气井的生产过程划分为五个阶段,制定了相应的排采控制方法,为樊庄区块生产井管理提供了理论依据。

CBM extraction in Fanzhuang Block in Qinshui basin has reached a preliminary scale. Up to now, the production time of the earliest CBM well put into production is nearly four years. The authors of the paper have acquired some knowledge on features of CBM well extraction after follow - up analysis of dynamic production data, and by taking into consideration the characteristics of coal reservoir in this area. The production process of CBM well is divided into five stages, and corresponding production control methods are formulated, which provide theoretical criteria for control of well production in Fanzhuang Block.