The paleoclimatic records and the relevance with the formation of hydrocarbon source rocks: A case study of Huanghekou depression, Bohaiwan basin

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• 作者：Zhanhong Liu (1)
  Sitian Li (1) (2)
  Renchen Xin (2)
  Changgui Xu (3)
  Jianchun Cheng (3)
  
• 关键词：spore ; pollen ; paleoclimate ; paleoenvironment ; hydrocarbon source rock
• 刊名：Frontiers of Earth Science
• 出版年：2008
• 出版时间：March 2008
• 年：2008
• 卷：2
• 期：1
• 页码：73-82
• 全文大小：1951KB
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• 作者单位：Zhanhong Liu (1)
  Sitian Li (1) (2)
  Renchen Xin (2)
  Changgui Xu (3)
  Jianchun Cheng (3)
  
  1. Faculty of Earth Resources, China University of Geosciences, Wuhan, 430074, China
  2. School of Energy Resource, China University of Geosciences, Beijing, 100083, China
  3. Technical Department of China National Offshore Oilfield Corporation Limited-Tianjin, Tanggu, 300452, China
  
• ISSN：2095-0209

文摘

Bohaiwan basin, covering an area of 200 000 km2, is one of the most important oil-bearing basins in Eastern China. Rifting processes formed the basin, and two evolution phases can be recognized. The rifting phase developed in Paleogene, and post-rifting phase occurred in Neogene. More than 200 oil fields have been found in the onshore and offshore area in Bohaiwan basin in recent years. The distribution of the oil fields is closely related to the rich hydrocarbon depressions, and the Huanghekou depression is one of these rich hydrocarbon depressions. A number of large and medium-sized oil and gas fields have been found in this area, such as BZ25-1, BZ34 etc., and the hydrocarbon was mainly from the Huanghekou depression. The formation of rich hydrocarbon source rocks depended on the tectonic setting of rapid subsidence, favorable paleoclimatic conditions and paleolimnology environments. The effects of paleoclimatic condition on hydrocarbon source rocks are the focus of this paper.