Some Key Geological Issues on Oil and Gas Exploration in the Northern Deepwater Area of the <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on">South China Sea</st1:place> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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Some Key Geological Issues on Oil and Gas Exploration in the Northern Deepwater Area of the South China Sea

详细信息

责任者：Zhu Weilin (China National Offshore Oil Corporation ; Beijing 100010 ; China)
刊名：Acta Geologica Sinica
出版年：2009
卷期：83(8)
关键词：深水环境 ; deep-water environment ; 油气勘探 ; petroleum exploration ; 南海 ; South China Sea
页码：p.1059-1064
图表：1 table, 30 refs.
分类号：1003
issnNo：ISSN0001-5717
isbnNo：CN11-1951/P

摘要

///The discovery of natural gas field in the deep water area of the northern margin of the South China Sea (SCS) made it as one of the hot areas in global oil and gas exploration. Comparative studies of deepwater basins in the world and the SCS adjacent continental shelf areas show that the deepwater area of the northern SCS is featured by unique petroleum geology as follows: tectonic transition from the active margin in Yanshan period to Cenozoic passive margin accounts for the complex evolution and basin formation mechanism. The thermal regime is hotter in the deepwater slope area and overpressure phenomenon is generally found in the depressions there, along with ambiguous hydrocarbon formation process. Due to the long distance from the provenance and lack of the material flux from the big rivers, this area is with distal sedimentation. No salt related tectonics is found in this area. All the phenomena mentioned above suggest its unique hydrocarbon formation. Additionally, the topography in deep water area of the northern SCS is rugged, along with multiple volcanoes, which undoubtedly arises difficulties for geophysical data acquisition and process.

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