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应用含油气系统理论,从源岩条件、储盖条件、远聚条件、成藏作用等几方面分析了川中震旦系吉隆起构造带的成藏机理,认为该区气源主要来自下寒武统筇竹寺组底部腐泥型暗色泥岩,其次为震旦系灯影组自生暗色藻白云岩,为早期成油晚期成气,该区最有利的储盖组合是灯四、三段储—下塞武统黑色页岩盖,其次是灯三段中部的云岩段储盖组合;多旋回的构造运动是控制油气运聚的主要因素,油气经过两次继承性运移聚集成藏,该构造带及华莹山构造带是有利勘探区。
Based on the theory of oil-gas system, the hydrocarbon accumulation mechanism of the Jiulongqi structural belt in the central Sichuan Basin is analyzed from the aspects of source rock conditions, reservoir cap conditions, tectonism and hydrocarbon accumulation. The gas source in this area mainly comes from the Lower Cambrian Followed by the Sinian Dengying Formation autochromic algae dolomite, the early oil into the late gas, the most favorable reservoir cover combination is the lamp four, three storage - under Seamwu black shale cap, followed by the Neogene lithofacies reservoir cover assemblage; polycyclic tectonic movement is the main factor controlling the hydrocarbon migration and accumulation, oil and gas after two successive migration accumulation and accumulation, the structure Belt and Huayingshan tectonic belt is favorable exploration area.