Distribution and Hydrocarbon Generation of the Eogene Source Rocks in aSequence Stratigraphic Framework in the Nanpu Sag,Bohai Bay Basin
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2008-12-10
-
Key words:
- Nanpu Sag /
- Paleogene /
- sequence stratigraphy /
- Eogene source rocks /
- hydrocarbon generation
Abstract: Nanpu Sag is rich in oil and gas and the main hydrocarbon source rocks of the Eogene are distributed within Es3,Es1 and Ed3 Formations. Based on the sequence stratigraphy study, the hydrocarbongenerating potential and distribution of source rocks in the Eogene sequence stratigraphic framework of Nanpu sag are discussed in this paper by the methods of organic petrology, geochemistry and organic facies. The results show that the heterogeneity of source rocks varies in different systems tracts. The hydrocarbon source rocks which were deposited in the early highstand systems tract and extent systems tract have the best hydrocarbongenerating potential in the SQ9, SQ5SQ8, SQ2 and SQ1 of Eogene, because the characteristics of sedimentation in the different systems tracts affect the type and conservation of organic materials in source rocks.
Citation: | ZHAO Yande. Distribution and Hydrocarbon Generation of the Eogene Source Rocks in aSequence Stratigraphic Framework in the Nanpu Sag,Bohai Bay Basin[J]. Acta Sedimentologica Sinica, 2008, 26(6): 1077-1085. |