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通过成藏温度、压力及生、储、盖、运、圈、保的数值模拟,建立了成藏史数值模拟系统,并以渤海湾盆地文安斜坡为例说明了这一系统的应用。研究表明,渤海湾盆地文安斜坡古生界煤成烃油气藏的形成有两期:第一期发生在中生代末,但成藏后被其后的燕山运动破坏;第二期在老第三纪,是油气藏形成的主要时期。本区的油气藏形成主要取决于生、排烃史与圈闭形成期的匹配和油气藏形成之后的保存条件,所以冀中坳陷古生界原生油气藏的勘探应集中于那些喜山期形成、且位于二次生烃区内及其周围的圈闭。
Through the numerical simulation of reservoir temperature and pressure, and the reservoir, cover, transport, circle and protection, a numerical simulation system of reservoir formation history was established. The application of this system was illustrated by taking Wenan slope in Bohai Bay Basin as an example. The results show that there are two stages of Paleozoic hydrocarbon generation and hydrocarbon accumulation in the Wen’an Slope of Bohai Bay Basin. The first stage occurred at the end of Mesozoic, but was later destroyed by Yanshan movement after the accumulation. In the second stage, , Is the main period of the formation of oil and gas reservoirs. The formation of oil and gas reservoirs in this area mainly depends on the matching of hydrocarbon generation history and trapping formation period and the preservation conditions after the formation of oil and gas reservoirs. Therefore, the exploration of the Paleozoic oil and gas reservoirs in the Jizhong Depression should be focused on those Himalayan period Formed, and located in the secondary hydrocarbon generation zone and the surrounding traps.