摘要
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%。
The estimation of CBM recovery rate has guiding significance in industrial development. Through analogy, desorption, iso-thermal adsorption curve and reservoir numerical simulation methods applicability analysis, combined with coal reservoir characteris-tics in the Shouyang block, Qinshui Basin, using numerical simulation software COMET3, carried out No.15 coal reservoir production data history matching, corrected basic parameters. According to different well spacing designed 6 different well pattern schemes, car-ried out capacity numerical simulation and recovery rate prediction. Based on predicted results summed up relationship between recov-ery rate and well number in Shouyang block, pointed out that the optimal well spacing is 288m × 216m, corresponding recovery rate is 50.4%.
出处
《中国煤炭地质》
2013年第10期18-21,共4页
Coal Geology of China
基金
国家科技重大专项课题(2011ZX05034-003)
国家自然科学基金项目(41272176)
关键词
采收率
类比法
解吸法
等温吸附法
数值模拟法
寿阳区块
recovery rate
analog method
desorption method
isothermal adsorption method
numerical simulation method
Shouyang block
