Xinjiang Petroleum Geology ›› 2006, Vol. 27 ›› Issue (3): 288-290.

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Gas Chimney and Hydrocarbon Exploration

LIANG Quan-sheng1, LIU Zhen1, WANG De-jie2, LI Wei-lian1, CHANG Mai1   

  1. 1. Key Laboratory of Hydrocarbon Accumulation Mechanism, Ministry of Education,China University of Petroleum, Beijing 102249, China;
    2. Center of Development and Research, China Geological Survey Bureau, Beijing 100037, China
  • Received:2005-10-21 Revised:2005-11-15 Online:2006-06-01 Published:2020-10-19

Abstract: Gas chimney is one of seismic anomalies resulted from vertical fluid migration, which is the interactional outcome due to overpressure, low stress and shale barrier. Multi-layered nonlinear neural network is now an effective technology for gas chimney research. The gas chimney can be applied in hydrocarbon exploration in terms of ranking prospects, detecting migration pathways, distinguishing sealing or non-sealing faults, identifying potential over-pressured zone and drilling (shallow gas) hazards as well as assessing the sea floor stability for platform design and drilling.

Key words: gas chimney, mechanism, seismic profile, hydrocarbon exploration

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