烃源岩排烃效率及其影响因素

发布时间：2018-01-01 10:30

本文关键词：烃源岩排烃效率及其影响因素　出处：《天然气地球科学》2016年09期 　论文类型：期刊论文

【摘要】：烃源岩的排烃效率是油气资源评价中不可缺少的参数,排烃效率研究既可以指导资源评价,又可以作为验证资源评价结果可靠性的重要科学手段。通过新建的地层条件下排烃效率模拟实验新方法(正演)结合地质剖面法(反演),求取了不同有机质类型烃源岩的排烃效率,并分析了热演化程度、有机质类型、有机质丰度、源储配置关系、烃源岩厚度及沉积超压对烃源岩排烃效率的影响。认为腐泥型有机质在成熟阶段的排烃效率为30%~60%;高成熟阶段的排烃效率为60%~80%,过成熟阶段的排烃效率达到80%以上。相同演化阶段,腐殖型有机质排烃效率低约10%~20%。排烃效率受多种因素的控制,预测排烃效率和滞留烃量时,不同地区应根据地质条件不同区别对待,充分考虑到各种因素的影响。
[Abstract]:Hydrocarbon expulsion efficiency of source rock is an indispensable parameter in hydrocarbon resource evaluation, and hydrocarbon expulsion efficiency research can guide resource evaluation. It can also be used as an important scientific means to verify the reliability of resource evaluation results. A new method of simulating hydrocarbon expulsion efficiency under new formation conditions (forward modeling) combined with geological profile method (inversion) can be used. The hydrocarbon expulsion efficiency of source rocks of different organic matter types is obtained, and the thermal evolution degree, organic matter type, organic matter abundance and the relationship between source storage and distribution are analyzed. The influence of source rock thickness and sedimentary overpressure on hydrocarbon expulsion efficiency of source rock. The hydrocarbon expulsion efficiency of high maturity stage is 60% and that of over mature stage is more than 80%. Hydrocarbon expulsion efficiency of humic organic matter is about 10% and 20%. Hydrocarbon expulsion efficiency is controlled by many factors. In predicting hydrocarbon expulsion efficiency and remaining hydrocarbon quantity, different regions should be treated differently according to geological conditions. Take full account of the influence of various factors.
【作者单位】：中国石油勘探开发研究院廊坊分院;中国石油天然气集团公司天然气成藏与开发重点实验室;
【分类号】：P618.13
【正文快照】： 王东良,等.烃源岩排烃效率及其影响因素[J].天然气地球科学,2016,27(9):1742-1751.]0引言烃源岩的排烃效率是油气资源评价中不可缺少的参数,排烃效率研究既可以指导资源评价,又可以作为验证资源评价结果可靠性的重要的科学手段。排烃效率即为油气初次运移的效率,其影响因素错

【相似文献】