沁水盆地寿阳区块煤层气井网优化及采收率预测CBM Well Pattern Optimization and Recovery Rate Prediction in Shouyang Block,Qinshui Basin
王振云,唐书恒,孙鹏杰,张松航,朱卫平
摘要(Abstract):
煤层气采收率的确定对于产业的发展具有较大指导意义。通过对类比法、解吸法、等温吸附曲线法及储层数值模拟法适用性分析,并结合沁水盆地寿阳区块煤储层特征,应用COMET3数值模拟软件,对15号煤储层生产数据进行历史拟合,校正了基础参数,基于不同井距设计了6种不同的井网方案,对各种方案进行了产能数值模拟及采收率预测。根据预测结果总结出寿阳区块采收率与钻井数关系变化规律,指出最优井间距为288m×216m,对应的采收率为50.4%。
关键词(KeyWords): 采收率;类比法;解吸法;等温吸附法;数值模拟法;寿阳区块
基金项目(Foundation): 国家科技重大专项课题(2011ZX05034-003);; 国家自然科学基金项目(41272176)
作者(Author): 王振云,唐书恒,孙鹏杰,张松航,朱卫平
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