页岩气藏水平井参数优选

Parameter optimization of horizontal wells in shale gas reservoirs

针对页岩气藏的成藏机理和产量递减特点,及目前开发存在的一些问题,结合国内外页岩气采用水平井开发的情况,采用油藏数值模拟(CMG)方法和数据分析法,在地质模型的建立基础上,通过优化水平井的具体参数(水平段长度、裂缝条数、裂缝半长、井距和排拒),获得具有一定经济价值的页岩气水平井参数,可为提高页岩气井的产量提供指导。

According to the characteristics of reservoir formation mechanism and yield reduction of shale gas reservoirs,and some problems existing in the current development,combined with the development of shale gas horizontal wells at home and abroad. Adopts the method of reservoir numerical simulation（ CMG） and data analysis method,on the basis of the establishment of geological model. By optimizing the specific parameters of horizontal wells（ horizontal section length,number of cracks,fracture half length,well spacing and rejection）,obtaining parameters of shale gas horizontal wells with a certain economic value can provide guidance for increasing shale gas production.