Identifying fan-shaped lithosomic bodies in Melut Basin, Sudan
Zhang Yuanyin1,2, Wang Tianqi3, Su Yuping3, Sun Zandong1,2, Fan Lehua3, Shi Zhongsheng3, He Weiwei3, Bai Jie3
1. Laboratory for Integration of Geology and Geophysics, China University of Petroleum (Beijing), Beijing 102249, China;
2. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China;
3. Northwest Branch, Research Institute of Petroleum Exploration & Development, PetroChina, Lanzhou, Gansu 730020, China
Abstract：Fan-shaped lithosomic bodies in the northern sag of Melut Basin were identilied and its distribu-tton range were determined by application of series technologies including electrofacies, seismic facies, density inversion, 3D visualization, and strata slice.The fan-shaped lithosomic bodies developed in the downthrow side of the boundary fault in the east that controlled the deposition of the northern sag, and they were shaped like waistband. Seismic inversion results show that sand content increased gradually from the west of the northern sag to the east of the major boundary faults and the maximum sand content is located near the major faults. This means the major provenance came from east. The above conclusion was approved by 3 exploration wells drilled based on the above prediction.
