西南石油大学学报(自然科学版)

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The Hydrocarbon Accumulation Conditions and Favorable Exploration
Direction of Chuanjiang Block of Hepu Basin

Gong Xiaofeng1,2, Yang Xibing3, Zhu Jitian3, Zhang Jingru1,2, Li Xiaotang1,2   

  1. 1. Key Laboratory of Marginal Sea Geology,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China
    2. University of Chinese Academy of Sciences,Shijingshan,Beijing 100049,China
    3. Zhanjiang Branch,China National Offshore Oil Corporation(China),Zhanjiang,Guangdong 524057,China
  • Online:2014-02-01 Published:2014-02-01

Abstract:

Strata found in Well Le2X in Hepu Basin are mainly off-white,variegated and purple-red,and dark mudstone is
thinner than others,only Jiuxikeng group of the Pliocene is thicker,but its bury is not deep,and belongs to prematurity stage.
The Chuanjiang fault block structural trap of Well Le2X is basically clear,but the traps is without basic hydrocarbon source
conditions and is away from the hydrocarbon source supply system,resulting in the fault block traps becoming empty traps,
which is the main reason for the failure drilling. Therefore,in-depth analysis of the low mature source rocks and hydrocarbon
source supply system,comprehensive prediction and delineation of favorable migration and accumulation of enriched zone
of low mature oil and gas and bio-gas within effective hydrocarbon source supply system,should be the key to oil and gas
exploration research in Hepu Basin.

Key words: Hepu Basin, Well Le2X, effective hydrocarbon source supply system, low mature oil and gas, biogas