摘要
黄骅坳陷奥陶系碳酸盐岩厚度大,从烃源岩的有机质类型、丰度、热演化特征等方面评价其基本生烃条件,认为有机质类型好,由于热演化程度较高,残余有机质平均丰度不很高。对系统取样井的奥陶系样品分析结果,其残余有机碳含量大于0.3%的样品占49%,大于0.4%的样品占32%,若恢复其原始有机碳丰度,其值会更高。据此判断黄骅坳陷应存在较好的奥陶系碳酸盐岩生烃层。
The carbonate is thickly developed within the Huanghua Depression. The kereogen typing, organic abundance and thermal evolution analyses suggest that the organic matter is good, however, its thermal evolution reaches a higher rank and the samples that residue organic carbon is more than 0.3% are amount to 49%, and more than 0.4% are amount to 32%. If the original organic carbon abundance could be recovered, the abundance would be much higher, so some good Ordovician carbonate source rocks should be developed the Huanghua Depression.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2003年第6期58-60,共3页
Petroleum Exploration and Development
关键词
黄骅坳陷
奥陶系
碳酸盐岩
有机质丰度
热演化
油源对比
Huanghua Depression
Ordovician
carbonates
organic matter abundance
thermal evolution
oil-source correlation
