层序地层学在含油气系统研究中的应用

Sequence Stratigraphy in Study of Petroleum System.

不同成因类型的盆地、海相盆地与陆相盆地的地层堆叠样式、层序构成和界面特征均不尽相同,进而影响到其中的生储盖层的分布和配置关系,层序地层学的基本思路与方法引入含油气系统的研究中有助于静态要素的研究与分析。层序地层学在含油气系统研究中的作用主要表现为:预测烃源岩和储集层产出层位,圈定其分布范围;预测油气藏组合类型;追踪油气圈闭中的生储盖组合、油气疏导层及进行油气运移途径、方式分析。

Different basin types, marine br nonmarine, havedifferent bedding styles, sequence constitution andboundary features, which may innuence the distribu-tion and arrangement of source-reservoir-sealing lay-ers, thus lead to the introduction of the basic thinkingand methods of sequence stratigraphy into the studyand analysis of static factors of petroleum system. Thefunction of the sequence stratigraphy in the study ofpetroleum system is predicting horizon of hydrocar-bon source rock and reservoir rock and the assem-blage type of oil and gas pool, tracing source-reservoir-sealing assemblage and conveyance layers,and studying pathway and manner of oil and gas mi-gration.