Geologic Characteristic of Hydrocarbon in the Passive Continental Marginal Basins of <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on">South America</st1:place><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

Geologic Characteristic of Hydrocarbon in the Passive Continental Marginal Basins of South America

详细信息

责任者：Guo Jianyu (Petroleum Exploration and Development Company ; SinoChem ; Beijing 100031 ; China) ; Hao Hongwen
刊名：Geoscience
出版年：2009
卷期：23(5)
关键词：含油气盆地 ; petrolifeous basin ; 南美洲 ; South America
页码：p.916-922
图表：4 illus., 19 refs.
分类号：1003
issnNo：ISSN1000-8527
isbnNo：CN11-2035/P

摘要

The passive continental marginal basins of South America have developed into one of the most active regions for petroleum exploration. The passive continental marginal basins of South America formed in Late Jurassic-Early Cretaceous as Gondwana land splitting, underwent pre-rift stage, syn-rift stage, transitional period and drift episode, formed sets of generating rock and reservoir-cover rock compages. Lacustrine generating rock of syn-rift periods is the most important oil source rock. Salt rock of transitional period dominated hydrocarbon reservoirs generation. Almost major fields were found in recent years, situated in continental clastic container rock and lacustrine carbonate rock. The passive continental marginal basins of South America were classified into three levels by hydrocarbon potential. The largest petroleum accumulations are situated in central south offshore of Brazil. Along with exploration technical progress, it presents well feasibility in this area to prospect reservoirs.

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