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达巴松凸起位于准噶尔盆地腹部,整体为北东抬升、西南倾伏的鼻状构造。该区侏罗系三工河组二段为三角洲前缘亚相沉积。根据对达巴松地区油藏的解剖,认为成熟烃源岩、优质储集层及成藏要素间的合理配置是达巴松凸起三工河组二段油气成藏的主控因素。结合沉积厚度、地震属性等资料综合分析,预测达巴松地区油气有利聚集区为达10井区南段。
Dabasong convex located in the abdomen of the Junggar Basin, the overall rise of the North East, southwest dump nose structure. The second member of the Sangonghe Formation in the Jurassic is delta front deposition. According to the anatomy of the reservoir in Dabasong area, it is considered that the rational allocation of mature source rocks, high-quality reservoirs and reservoir-forming elements is the main controlling factor for the hydrocarbon accumulation in the second member of the Dagongsang Formation in the Bashangong area. According to the comprehensive analysis of sedimentary thickness, seismic attributes and other data, it is predicted that the favorable accumulation area of oil and gas in the Dabasong area is the southern section of Da 10 well.