下寺湾地区油藏控制和富集因素浅析

下寺湾区位于鄂尔多斯盆地陕北斜坡东部延长探区的中南部,局部地区形成小幅度的鼻状构造和向斜构造。通过综合研究下寺湾地区储集层与烃源岩的展布,构造特征等资料,对下寺湾地区地质特征、富集规律及主控因素进行研究。研究结果表明:下寺湾地区具有优质烃源岩、水动力条件及较好的构造条件的控制作用,使该地区形成了2套生、储、盖组合油藏。下寺湾地区油气资源潜力大,具有广阔的勘探前景。

Hydrocarbon control and enrichment factors in the cooperation area of Xiasiwan

Xiasiwan area is located in South Central East of Shanbei slope of Yanchang Formation Ordos basin,forming a nose structure of small local area and syncline structure. Through comprehensive study of reservoir and source rock distribution,structural features,the geological characteristics,hydrocarbon distribution laws and main controlling factors in Xiasiwan area of Ordos Basin were studied.The results show that Xiasiwan area contains abundant high quality source rocks,hydrodynamic conditions and control better effect of structural conditions,the region has formed 2 sets of source reservoir cap combination reservoir. This type of pool is an important potential resource,revealing the huge potential and good exploration prospect.