Lithologic Reservoirs ›› 2007, Vol. 19 ›› Issue (3): 97-100.doi: 10.3969/j.issn.1673-8926.2007.03.017

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Water saturation evaluation of low resistivity reservoir in southern Tahe Oilfield

ZHAO Yi1,ZHANG Chenguang1,FAN Zhenjun2, LIU Jiahua2   

  1. 1. School of Geophysics and Oil Resources , Yangtze University , Jingzhou 434023 , China;
    2. Research Institute of Exploration and Development , Northwest Branch Company , Sinopec , Urumqi 830011 , China
  • Online:2007-09-15 Published:2007-09-15

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Abstract:

Water saturation is one of t he key parameters to evaluate hydrocarbon reservoir . Based on t he core analysis result s and the bound water saturation derived  rom the nuclear magnetic resonance (NMR) test results for several wells of Triassic low resistivity reservoir in southern Tahe Oilfield , the comparison of the evaluation results of water saturation derived from Archie equation and Waxman-Smits model respectively is carried out . The result shows that using Waxman-Smits model to evaluate water saturation in this area is more advisable.

Key words: reservoir characteristics, influencing factors, sedimentary facies, diagenesis, Ordos Basin

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