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本文以时间—温度指数(TTI),同时考虑生油母质类型间的差别,制定了一个不同类型干酪根生油界限值表,分别对五套生油层段,采用电子计算机进行TTI值计算,并编制了各生油层热演化图,构造发展与生油层演化史剖面图,重点讨论了主要生油层的生油门限深度,生油期和运移期,在总结本区含油气组合基本特征的基础上,指出了有利的油气聚集带,①继承性生油坳陷的上倾方向—克—乌断阶带,②盆地内的凹边隆—玛湖断裂带的隆起部位,对于各生油层系油气聚集十分有利。
In this paper, a different type of kerogen limit table was developed by taking the time-temperature index (TTI) and taking into account the difference in the types of kerogen. The TTI values of five kerogen intervals were calculated by computer. The thermal evolution maps of all oil reservoirs, the structural development and the profile of the evolution of raw oil reservoirs are compiled. The threshold depth, oil-producing period and migration period of main oil-producing reservoirs are mainly discussed. Based on summarizing the basic characteristics of oil-gas combination in this area On the other hand, favorable hydrocarbon accumulation zones are pointed out: (1) the upwelling direction of the successional oil-source depression - the Ke-Wu fault zone, and (2) the uplifted parts of the Neibuolong-Mahu fault zone in the basin, Oil and gas accumulation is very favorable.