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Oil & Gas Migration Characteristic and Model for Sha-2 Member of the Shahejie Formation in Shengbei Fault Zone,Dongying Sag

Yongwang Zhang

Abstract

The geological and geochemical research results indicate that fault activities of Shengbei fault zone in Dongying Sag have an important effect on oil gas migration and accumulation of Sha-2 Member of the Shahejie Formation.Oil and gas generated from the source rocks in the lower part of Sha-3 Member of the Shahejie Formation and the upper part of Sha-4 Member of the Shahejie Formation migrate vertically into Sha-2 Member of the Shahejie Formation along Tuo 94 fault and the north-south fault independently during the fault activities,and then migrate laterally in Sha-2 Member of the Shahejie Formation and accumulate in the saddle of Shenglicun anticline and Tuozhuang anticline.

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Key concepts: Anticline, Geology, Fault (geology), Petrology, Normal fault, Geochemistry, Fault block, Paleontology