【摘要】 为了研究泥岩裂缝油气藏中油气的运移聚集规律,通过对沾化凹陷泥岩孔隙和裂缝特征的观察与研究,分析指出泥岩裂缝油气藏中油气运移以异常高压为动力,以泥岩孔隙喉道、微裂缝、干酪根网络和断层缝为油气运移通道,并经历了泥岩油气欠压实喉道阶段和高压微裂缝间歇性阶段两大运移过程。受这些特征的控制,油气藏的分布具有一定的规律性,主要存在于超压泥质岩微裂隙带和断裂带附近。更多还原

【Abstract】 <abstract> order to study migration and accumulation rule of oil and gas in fractured shale reservoir, by observing and studying the features of shale pores and fractures in Zhanhua sag, it is pointed out that the abnormally high pressure is the driving force, and shale pore-throat, micro-fractures, kerogen network and fault fractures arethe passageway for oil-gas migration in the reservoir, and the undercompacted throat stage of the shale oil-gas and intermission stage of high -pressure micro -fractures were two migration processes. These characters controlled the certain regulation of oil -gas distribution which mainly distributed near the super-pressure micro -fractured belt and the faulted belt of the shaly rocks.更多还原