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层序地层与含油气系统有其内在的联系,把它们两者结合起来可更准确的认识成藏特点和成藏规律,更有效的指导油气勘探。通过应用岩性识别、地震资料、测井资料将沙二下亚段划分为8个准层序,确定了3种体系域类型,即湖进体系域、高位体系域以及湖退体系域。由于对于文西断裂带盖层的研究前人已经确定,通过层序地层学手段确定了更具体的储集层位(Ⅰ3、Ⅰ4、Ⅰ5准层序组)。据之,将文西断裂带含油气系统定名为Es1+Es3~Es2下(!)含油气系统。
Sequence stratigraphy is intrinsically linked with hydrocarbon-bearing systems. Combining the two can lead to a more accurate understanding of reservoir forming characteristics and reservoir forming rules, and more effectively guide oil and gas exploration. Through the application of lithology identification, seismic data and logging data, the two sub-sequences of the second member of the Shahejie Formation are divided into eight quasi-sequences, and three types of system domains are identified, namely the lake-derived system tract, the highstand system tract and the lake-derived system tract. Since the study of the Wenxi fault zone cap rock has been previously determined, more specific reservoir positions (Ⅰ3, Ⅰ4, Ⅰ5 quasi-sequence group) have been identified by sequence stratigraphy. According to that, the Wenxi fault zone petroleum system is named as Es1 + Es3 ~ Es2 (!) Petroleum system.