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从区域地质资料出发,对鄂尔多斯盆地合水地区长3地层的油气分布特征及其控制因素进行了分析,认为长3地层的油气分布受沉积微相、渗透性砂体、微构造等多重因素的控制,其中有利沉积相带和渗透性砂体是最主要的控制因素,其次是微构造,微构造常与岩性因素共同控制着油气分布。这些研究结论的得出,为工区进一步的勘探和开发提供了地质依据。
Based on the regional geological data, the oil and gas distribution characteristics and controlling factors of Chang 3 stratum in Heshui area, Ordos Basin, are analyzed. It is concluded that the hydrocarbon distribution in Chang 3 stratum is affected by multiple factors such as sedimentary microfacies, permeability sand body and micro-structure The favorable sedimentary facies belt and permeability sand body are the most important controlling factors, followed by micro-structure, micro-structural and lithologic factors controlling the distribution of oil and gas. The conclusions drawn from these studies provide the geological basis for further exploration and development in the work area.