叠合盆地油气成藏体系研究方法探讨

Discussion on research method of hydrocarbon accumulation system in superimposed basin

徐忠美

中国地质大学（北京）能源学院，北京 100083 中国石化石油勘探开发研究院，北京 100083

应用三维模拟技术，强化油气成藏体系动态演化过程，采用“正反演结合”的思路，探讨叠合盆地油气成藏体系的研究思路和方法。整个的研究过程分５步：通过成藏要素研究构建地质模型；通过正演烃源岩生烃过程与时空演化，分阶段计算生烃量；通过输导体系研究来调整油气最终的分布；应用油气组分追踪技术分析不同烃源岩层贡献比例；根据三维模拟结果动态分析资源空间分布及变化过程。

Dynamic evolution process of hydrocarbon accumulation system is strengthened through the use of three-dimensional modeling. The study method of hydrocarbon accumulation system is discussed by adopting the thinking of forward-inversion combination. Entire study process can be divided into five steps, i.e. establishing geological model according to the accumulation factors, calculating the hydrocarbon generation amount by stages through the forward of hydrocarbon generation process of source rock and the time-space evolution, adjusting the ultimate hydrocarbon distribution by the study of transporting system, analyzing the contribution proportion of different source rocks in terms of the tracing technique of oil and gas component, analyzing the spatial distribution and change process of resource on the basis of the three-dimensional modeling result.