Journal of Jilin University(Earth Science Edition) ›› 2016, Vol. 46 ›› Issue (6): 1672-1683.doi: 10.13278/j.cnki.jjuese.201606107

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Transporting Models of Oil-Gas Migration by Normal Fault and Its Controlling Effect to Oil-Gas Distribution

Liu Junqiao1, Lü Yanfang1, Fu Guang1, Sun Tongwen1, Li Jiaxing2   

  1. 1. Geoscience College, Northeast Petroleum University, Daqing 163318, Heilongjiang, China;
    2. Down-Hole Operation Branch of Daqing Oilfield Company Ltd, Daqing 163000, Heilongjiang, China
  • Received:2016-03-05 Online:2016-11-26 Published:2016-11-26
  • Supported by:
    Supported by Natural Science Foundation of China(41372154,41602164);Postgraduate Innovative Research Projects of Northeast Petroleum University(YJSCX2016-001NEPU);Post-Doctoral Science Fund of China(2016M591509)

Abstract: In order to study the role of normal fault in oil-gas accumulation and distribution, based on analysis of relationship between normal fault transportation and oil-gas distribution in different migration directions, transporting models of oil-gas migration by normal fault and its controlling effect to oil-gas distribution were studied. The result indicates that, there are 2 transporting models of oil-gas migration by normal fault, transporting model of mainly oil-gas vertical migration and transporting model of oil-gas lateral migration. Transporting model of oil-gas vertical migration by normal fault can be divided into transporting model of vertical migration, and transporting model of oil-gas vertical then lateral diversion, transporting model of oil-gas lateral migration by normal fault can be divided into transporting model of oil-gas lateral connected migration and transporting model of oil-gas lateral then vertical migration by normal fault. Controlling effect of transporting model of oil-gas vertical migration by normal fault to oil-gas distribution is showed in 2 aspects:①The transporting models of oil-gas vertical migration by normal fault control oil-gas profile distribution feature, in transporting model of mainly oil-gas vertical migration that oil-gas can distribute over or below caprock, in transporting model of oil-gas vertical then lateral migration that oil-gas can only distribute below caprock. ②The hanging wall layers of high ratio of sandstone to stratum are main oil-gas distribution place. Controlling effect of transporting model of oil-gas lateral migration by normal fault to oil-gas distribution is showed in 2 aspects:①The transporting models of oil-gas lateral migration by normal fault control oil-gas profile distribution feature, in transporting model of oil-gas lateral then vertical migration that oil-gas can distribute over or below caprock, in transporting model of mainly oil-gas lateral connected migration that oil-gas can only distribute below caprock.②The footwall of reverse normal faults are main oil-gas distribution place.

Key words: normal fault, transporting model, vertical migration, lateral migration, oil-gas distribution, controlling effect

CLC Number: 

  • P618.13
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[2] WANG Ya-chun, WANG Sheng-nan. Controlling of the Match of Source Rock|Overpressure and Fault on Oil Accumulation of |Fu-Yang Oil Layer in |Sanzhao Depression [J]. J4, 2009, 39(4): 656-661.
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