二连盆地阿南凹陷的演化与油气聚集规律
Evolution of the Arnan Seg in the Erlian Basin and Hydrocarbon Accumulation
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摘要: 从构造、沉积演化史分析了阿南凹陷的发育特点及成油条件,认为阿南凹陷是一个继承性凹陷,其善南洼槽为湖盆的沉积中心,控制了主力生油区和油气藏的展布。在分析了凹陷的油气富集规律后指出了下步油气勘探方向。Abstract: The development characteristics and oi1 gcncration conditions in the Arnan seg arc studied based on tectonic and sedimentary evolution history analysis. The Arnan seg is an inheritable basin in which the Shannan trough is the depositing centre of the lake basin and controls the major source area and the hydrocarbon reservoir distribution.The exploration direction is pointed out after analyzing the regular pattern of hydrocarbon enrichment in the seg.