摘要
利用地化分析技术,研究了濮卫洼陷沙三段中亚段和沙三段下亚段实测烃源岩样品的有机质丰度、母质类型和有机质成熟度,并结合测井资料对2段烃源岩的品质进行了整体评价。结果表明:濮卫洼陷沙三段中亚段盐岩发育区烃源岩品质较好,干酪根类型为Ⅰ型,以水生生物和藻类为生源;濮城等盐岩相对不发育区烃源岩品质中等,干酪根类型为Ⅱ型,母质输入为细菌与陆源高等植物;沙三段下亚段烃源岩品质较好—中等,干酪根类型为Ⅰ型或Ⅱ型,母质输入为水生生物、细菌和陆源植物;沙三段中亚段和下亚段烃源岩都已达到成熟油阶段。
By means of geochemical analysis,the organic abundance,the type and the maturity of organic matter of middle and lower Es_3 source rocks samples in Puwei Sag were researched.And the source rocks were estimated by logging evaluation technology. The results show that the quality of the middle Es_3 source rocks developed in salt rock areas is in high quality with typeⅠkerogen, and the original source materials biogenic are aquatic organisms and algae.The quality of the middle Es_3 source rocks developed in other areas such as Pucheng area is in middle quality with typeⅡkerogen,and the original source materials are bacteria and land plants.The quality of the lower Es_3 source rocks is middle or high,and the kerogen is typeⅡorⅠwith the original biogenic matter of aquatic organisms,bacteria and land plants. The middle and lower Es_3 source rocks have reached mature oil stage.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2009年第2期12-16,共5页
Petroleum Geology and Recovery Efficiency
关键词
烃源岩
有机质丰度
母质类型
有机质成熟度
濮卫洼陷
source rocks
organic abundance
source material type
maturity of organic matter
Puwei Sag
Dongpu Depression
