Features of flexure slope break and oil-gas exploration in the south of Songliao Basin
WANG Jian-gong~(1,2) WEI Ping-sheng~2 ZHENG Jun-mao~1 ZHAO Zhan-yin~3 PAN Shu-xin~2 (1.China University of Geosciences, Beijing 100083, China; 2.Northwest Exploration and Production Institute of CNPC, Lanzhou 730020, China; 3.Jilin Oilfield Company of CNPC, Songyuan 138001, China)
According to evolution stages of expanded basin, characteristics of tectonic action, property of fault, distribution of depositional system and sand-body, the slope break was classified into two styles of fracture slope break and flexure slope break. The genesis, difference and exploration fields of the fracture slope break and flexure slope break were analyzed. By using multiple information, genesis and distribution scope of the flexure slope break, reservoir styles and seal condition in the south of Songliao Basin were discussed. The favorable exploration fields and prospective blocks were presented.
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