Seismic subtle interpretation of complex minor fault in Yangxin Sub-sag
RAN Huai-jiang1, LIANG Xing2, CHEN Fang-hong3, ZUO Chen-mei1
1 School of Energy and Resources,China University of Geosciences,Beijing,100083,China;
2 PetroChina Zhejiang Oilfield Company,Hangzhou,Zhejiang,310013,China;
3 Beijing China-oil Technology Co.Ltd.,Beijing,100083,China
Abstract：Yangxin Sub-sag is located in Baiju depression of Subei Basin with complex fracture systems,dense faults and small traps.Early explorations showed that Yangxin Sub-sag seemed to be good prospects for oil and gas exploration,but the structure delineation was not confirmed.Starting from studying fracture system,we identify and describe minor faults by multi-attribute extraction from multiple sections,multi-direction profiles.Using this seismic subtle interpretation method,the structure delineation has been improved in Yangxin Sub-sag.
