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鄂尔多斯盆地西缘麻黄山地区中生界具有良好的油气勘探潜力。在对麻黄山地区构造、岩心和测井分析的前提下,探讨了不同构造带的油气分布规律、成藏过程以及油气分布的主要控制因素,认为在构造稳定带主要发育岩性、岩性-构造油气藏,而在断裂带主要发育断块、断鼻油气藏;油气分布纵向上跨度大,为上油下水,具有统一的油水界面,平面上主要分布在构造部位高、砂体发育的背斜或断背斜轴部;油气分布主要受沉积相、成岩作用和构造控制。纵向上胶结作用弱、溶蚀作用强的砂体为油气的主要富集场所,平面上处于构造高部位、水动力强的分流河道与河道砂体为油气的主要富集部位。
The Mesozoic in the Mahuangshan area, on the western margin of the Ordos Basin, has good potential for oil and gas exploration. On the premise of the tectonic, core and log analysis of Mahuangshan area, the authors discussed the hydrocarbon distribution laws and the processes of hydrocarbon accumulation and the main controlling factors of oil and gas distribution in different tectonic belts. It is considered that the main lithology and lithology- In the fault zone, there are mainly fault blocks and fault gas reservoirs. The oil and gas distribution has a large span in the longitudinal direction, which is oil and sewer, and has a uniform oil-water interface. The plane is mainly distributed in the tectonic part and the back Diagonal or anomalous syncline; oil and gas distribution is mainly controlled by sedimentary facies, diagenesis and tectonics. In the longitudinal direction, the sand bodies with weak cementation and strong dissolution are the main enrichment sites of oil and gas, and the distributary channel and channel sand body with strong hydrodynamic force are the main enrichment sites of oil and gas in the plane of structure.