Sedimentary Characteristics and Favorable Oil-Bearing Facies Belts Analysis of Near-Shore Subaqueous Fan of Nantun Formation in Tanan Depression
详细信息
- 责任者：Miao Changsheng (College of Earth Science ; Jilin University ; Changchun 130061 ; China) ; Liu Zhaojun
- 刊名：Journal of China University of Petroleum
- 出版年：2011
- 卷期：35(1)
- 关键词：冲积扇 ; alluvial fans ; 油气藏形成 ; reservoir formation ; 塔里木盆地 ; Tarim Basin
- 页码：p.34-39
- 图表：7 illus., 20 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
The sedimentary characteristics, distribution, evolution and favorable oil-bearing facies belts of near-shore subaqueous fan of Nantun Formation in Tanan Depression were studied. The results show that three kinds of sub-facies and four kinds of microfacies can be identified in near-shore subaqueous fan, and the different facies belts show obvious distinctions in sedimentary characteristics. The reservoir porosity of different places and burial depths shows a great discrepancy, therefore it is hard that the reservoirs formed a large joint area and high-quality ones. The study area mainly developed lithologic hydrocarbon reservoirs and structural-lithologic composite hydrocarbon reservoirs whose individual scale is small but quantities are numerous.