岩性油气藏 ›› 2018, Vol. 30 ›› Issue (5): 5158.doi: 10.12108/yxyqc.20180506
刘刚, 赵谦平, 刘超, 孙建博, 尹锦涛
LIU Gang, ZHAO Qianping, LIU Chao, SUN Jianbo, YIN Jintao
摘要: 在勘探开发程度较低的页岩气区块,可采系数标定成为区块开展页岩气可采资源量评价工作的重要方法,然而国内目前尚未对页岩气可采系数标定进行系统研究。为填补国内页岩气可采系数标定研究的技术缺失,以延长油气区页岩气区块作为研究对象,结合研究区当前勘探特征,综合选取出3种适用于当前页岩气勘探程度的页岩气标定方法(类比法、参数加权法和等温吸附法),根据3种方法在实际区块的可靠度分析进行特尔菲加权,获取区块准确的页岩气可采系数,最终探究出适合页岩气低勘探程度条件的区块可采系数标定方法。应用延长油气区页岩气勘探成果和认识对页岩气可采系数标定方法进行了实际应用,最终得到延长油气区页岩气中生界可采系数为0.132,上古生界可采系数为0.201。该方法对延长油气区页岩气的深入勘探开发具有指导作用,同时可为国内类似页岩气区块的可采资源量评价研究提供技术借鉴。
中图分类号:
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