Oil & Gas Geology ›› 2009, Vol. 30 ›› Issue (4): 450-454,461.doi: 10.11743/ogg20090410

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Control of the Tan-Lu fault zone on hydrocarbon accumulation in the Bohai Sea waters

Wang Guimei1,2, Zhou Donghong3, Tang Liangjie1,2   

  1. 1. Research Center for Basin and Reservoir, China University of Petroleum, Beijing 102249, China;
    2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    3. CNOOC Tianjin Company, Tianjin 300452, China
  • Received:2009-05-05 Online:2009-08-25 Published:2012-01-16

Abstract:

In the Bohai Sea waters,near the Tan-Lu fault zone,the Bonan and Liaodong Bay exploration areas have great potential for hydrocarbons.While apart from the Tan-Lu fault zone,the Boxi exploration area has less oil and gas.In addition,the existing discoveries are all distributed surrounding the Tan-Lu fault zone.From the above-mentioned facts,we can conclude that,near the Tan-Lu fault zone,there is a great potential for hydrocarbon exploration.Balanced-cross sections show that the Tan-Lu fault zone of the Bohai Sea area shows tectonic features of extension in the Paleogene and strike-slip in the Neogene.The Paleogene extensional activities controlled the development of hydrocarbon kitchens and promoted the fast maturation of source rocks.Later,the Neo-gene strike-slip activities shaped many structural traps and helped the hydrocarbon migration and late accumulation.The Bohai Sea waters show great potential for hydrocarbon exploration,while to date,only a small amount of the total resources have been proved.

Key words: tectonic evolution, hydrocarbon accumulation, Tan-Lu fault zone, Bohai Sea waters

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