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在研究新疆库车坳陷逆掩断裂、源岩和盖层空间发育特征的基础上,研究了逆掩断裂与源岩、盖层的空间匹配关系。认为断穿源岩、盖层的逆掩断裂则是油气散失的通道;勾通源岩,但未断穿盖层的逆掩断裂则是油气聚集的输导通道,它们控制着库车坳陷油气的聚散及其在空间上的分布。在研究库车坳陷逆掩断裂活动史和源岩排烃史、盖层封闭能力形成史的基础上,研究了逆掩断裂与源岩、盖层的时间匹配关系,认为盖层与源岩的时间匹配关系控制着可供运移的油气量;逆掩断裂与源岩的时间匹配关系控制着可供聚集的油气量,盖层与逆掩断裂的时间匹配关系控制着油气的富集量。
Based on the study of the thrust faults, source rocks and caprocks in the Kuqa Depression, Xinjiang, the space matching between the thrust strata and the source rocks and cap rocks is studied. It is considered that the source rocks are cut off and the overthrust of the caprocks is the channel for the loss of oil and gas. Through the source rocks, the thrust-breaking faults that have not broken through the caprocks are the conduction channels for oil and gas accumulation, which control the oil and gas in the Kuqa depression The polygamy and its distribution in space. Based on the study of the history of the overthrust and the hydrocarbon expulsion history in the Kuqa Depression and the formation history of the caprock closure ability, the temporal matching between the caprock and the source rock and caprock is studied. It is considered that the relationship between the caprock and source rock The temporal matching relationship controls the amount of oil and gas available for migration. The time matching relationship between the overthrust and the source rocks controls the amount of oil and gas available for accumulation, and the time matching between the caprock and the overthrust controls the accumulation of oil and gas .