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方斗山构造带位川东高陡构造区,地腹形态复杂,地层倾角大。由于构造条件复杂,地震解释难度大,造成本区钻探程度极低。本文结合现有的钻井及地震资料分析了方斗山构造带的构造特征及地层特征,绘制了石炭系及黄龙组地层等值线图,描述了其构造演化过程,分析了石柱古隆起对该区油气聚集的影响,最后根据现有分析选择中台子构造为该区域下步有利勘探目标。
Fang Doosan structural belt East Sichuan high steep tectonic zone, to the belly complex shape, strata angle. Due to the complex tectonic conditions, it is very difficult to interpret the seismic data, resulting in a very low degree of drilling in this area. Based on the existing drilling and seismic data, the paper analyzes the structural features and stratigraphic features of the Fangdushan tectonic belt, draws contour maps of the Carboniferous and Huanglong formations, describes the tectonic evolution process, Finally, according to the existing analysis, we choose the mid-stage structure as the favorable prospecting target in this area.