Dynamic of Mesozoic Hydrocarbon Secondary Migration in Zhenjing Oilfield, Southwestern Ordos Basin
详细信息
- 责任者：Ding Xiaoqi (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhang Shaonan
- 刊名：Natural Gas Geoscience
- 出版年：2011
- 卷期：22(1)
- 关键词：二次运移 ; secondary migration ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.66-72
- 图表：5 illus., 2 tables, 25 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
The Mesozoic reservoirs in Zhenjing oilfield is characterized by tight reservoirs, low permeability, low abundance and large reserves. It has favorable exploration potential which is shown by the drilled high-yielding wells. Previous studies indicate that there are multiple dynamic systems for hydrocarbon migration and accumulation in the southwestern Ordos Basin. And different systems have different dynamic and carrier path for secondary migration. Through the research on buried history, mudstone compaction curve and physical property of reservoirs, it is concluded that the dynamic of secondary migration in Chang8 Member with ultra-low permeable reservoir is overlying abnormal pressure but Yan’an reservoir is buoyancy.
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