Sedimentary Organic Facies of the Palaeogene Upper E2-3s4 Source Rocks in Jiyang Depression
详细信息
- 责任者：Liu Qing (Geology Scientific Research Institute of Shengli Oilfield Branch Company ; SINOPEC ; Dongying 257015 ; China) ; Zhang Linye
- 刊名：Geological Journal of China Universities
- 出版年：2011
- 卷期：17(4)
- 关键词：烃源岩 ; source rocks ; 有机相 ; organic facies ; 济阳坳陷 ; Jiyang Depression
- 页码：p.586-593
- 图表：illus., 26 refs.
- 分类号：1003
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
///Investigation of sedimentary structures, palaeontology associations and organic matter occurrence shows that the lacustrine deposition of Palaeogene upper E2-3s4 hydrocarbon source rocks is significantly controlled by the bottom anoxicity in Jiyang Depression. Based on the previous studies on sedimentary organic facies and palaeo-oxygen facies, the source rocks are divided into four types including anoxic facies anaerobic facies, dysaerobic facies, and aerobic facies, and the identification markers of each facies are summarized. The results show great difference in the occurrence of the upper E2-3s4 hydrocarbon source rocks from the east to the west, and the upper source rocks in the east are obviously superior to those in the west.