Geological Comprehensive Evaluation and Exploration Target Selection in Yingdong Area of Qaidam Basin
柴达木盆地英东地区地质综合评价及勘探目标优选

Based on an integrated analysis of such geological conditions as tectonic fracture characteristics, hydrocarbon source rocks, sedimentary reservoir strata and source-reservoir-cap rock in Yingdong area of Qaidam Basin, the authors have reached the conclusion that Yousha Hill and Yingdong No. 1 structure in the shallow traps of Yingdong area have adequate oil sources and possess ideal source-reservoir-cap rock assemblage. Test drilling of Sha-33 and Sha-34 wells has access to oil and gas flow, suggesting eastward expansion tendency of the oil and gas reservoir. Target optimization has revealed that the area has good prospects for exploration, and the drilling of Sha-37, Sha-40 wells has led to the discovery of Yingdong No. 1 oil and gas field.