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塔里木盆地油气产层大多分布于不整合上、下部位,不整合特殊的形成环境决定了其对油气分布的控制作用。不整合面上、下具三层结构,在不整合面下部主要发育有潜山及与地层削蚀有关的圈闭,上部主要发育与地层超覆有关的圈闭,隆起及斜坡部位为有利储层发育带。不整合面既是油气运移的通道,也是油气聚集、储存的重要场所,油气最终能否成藏关键取决于不整合面上、下的有效储盖组合。
Most of the oil and gas layers in the Tarim Basin are distributed on unconformity and the lower part of the basin. The unconformity of the special formation environment determines its control over the hydrocarbon distribution. On the unconformity surface, there is a three-layer structure, with buried hills and traps associated with formation erosion in the lower part of the unconformity. Traps, bumps and slopes related to stratigraphic overgrowth are mainly developed in the upper part. Layer development zone. Unconformity is not only a channel for hydrocarbon migration, but also an important site for oil and gas accumulation and storage. Whether oil and gas can eventually accumulate or not depends on the effective combination of reserves and reservoirs on the unconformity surface.