Abstract：Jiuquan Basin undergoes multi-stage tectonic activities, and its fault system is complex, so it is difficult to determine exploration targets and to carry out fine fault description. It is very difficult to predict reservoirs due to different source materials, rapid change of sedimentary facies and various types of reservoirs. With GeoEast interpretation sub-system, we conduct a comprehensive analysis in Cretaceous reservoirs of Yaerxia in Qinxi Sag, Jiuquan Basin. Using structure-oriented filter, coherence and curvature attribute analysis, we identify the complex fault block K1g1 in Changshaling, Ying'er Sag. With coherence and curvature analysis based on duplicated filters, we identify Palaeogene minor faults in Yaerxia and determine the Palaeogene fault development system. With the help of GeoEast interpretation sub-system, the integrated geology studies in Jiuquan Basin have made great progress and some new discoveries of the oil and gas exploration have been achieved.
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[11]
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[12]
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[14]
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[15]
李国栋,白卫卫,孙金磊等.扇三角洲岩性油气藏储层描述技术研究——以营子街地区为例.岩性油气藏,2013,25(2):55-59.Li Guodong,Bai Weiwei,Sun Jinlei et al.Technology of lithologic reservoir description in fan delt:A case study from Yingzijie area.Lithologic Reservoir,2013,25(2):55-59.
李凌川,徐文玺,邓虎成等.泾河油田三叠系长8段天然裂缝特征与预测.新疆石油地质,2016,37(3):293-296.Li Lingchuan,Xu Wenxi,Deng Hucheng et al.Cha-racteristic and prediction of natural fractures in Triassic Chang-8 member,Jinghe Oilfield.Xinjiang Petroleum Geology,2016,37(3):293-296.
