论文部分内容阅读
通过碳酸盐岩成藏要素生、储、盖、运、圈、保的数值模拟,建立了成藏史数值模拟系统,并以渤海湾盆地黄骅坳陷孔西潜山构造带为例说明了这一系统的应用。研究表明,孔西潜山构造带奥陶系烃源岩在印支期开始排烃,一次成藏开始;燕山期进入大量生、排烃阶段,成为本区的主要生烃期和成藏期;之后,一次生烃中止;喜马拉雅期该构造带进一步被埋深,开始二次生烃和第三次成藏,二次生烃的量较小。所以黄骅坳陷下古生界原生油气藏的勘探应注重那些位于生烃区在印支期和燕山期形成且未被后期构造运动破坏的古构造。
Based on the numerical simulation of the genesis, storage, cover, transport, circle and conservation of carbonate rock elements, a numerical simulation system of reservoir formation history was established. The system was described by taking the Kongxi buried hill structure belt in Huanghua Depression of Bohai Bay Basin as an example Applications. The study shows that the Ordovician source rocks in the Kongxi buried hill began to expel hydrocarbons during the Indo-Chinese epoch, and the first accumulation started. During the Yanshanian period, a large number of hydrocarbon generation and expulsion stages were entered into the major hydrocarbon generation and accumulation periods in this area , A hydrocarbon generation was suspended. During the Himalayan period, the tectonic belt was further buried, and secondary hydrocarbon generation and third gas accumulation were started. The amount of secondary hydrocarbon generation was relatively small. Therefore, the exploration of the Lower Paleozoic primary reservoirs in the Huanghua Depression should pay attention to those paleo-structures that were formed in the Indosinian and Yanshanian Periods and were not damaged by the later tectonic movements.