Lithologic Reservoirs ›› 2017, Vol. 29 ›› Issue (6): 142-147.doi: 10.3969/j.issn.1673-8926.2017.06.018

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Application of initialization by enumeration equilibrium to reservoir numerical simulation

YUE Shijun, ZHENG Changlong, YANG Zhaoping, JING Ziyan, LIU Xiongzhi, JIN Baozhong   

  1. PetroChina Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China
  • Received:2017-05-30 Revised:2017-08-14 Online:2017-11-21 Published:2017-11-21

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Abstract: The initialization of reservoir numerical simulation mode is very important to the model. The equilibrium method commonly used may result in the same initial oil saturation for a large connectivity area, which is different to the real condition. For improving the accuracy of the simulation model,the initialization by enumeration equilibrium method was proposed. The initial saturation is enumerated from 3D geological model and no longer depends on the end point values of the relative permeability curves. Then the end point scaling method is used for the relative permeability curves,and the new curves are produced. The initial liquid equilibrium-requirements can be met by capillary pressure scaling. The results show that the initial oil saturation distribution gained by enumeration-equilibrium method is closer to the true condition,and the history match can be simplified. The approach works well in application on reservoir numerical simulation.

Key words: auto-adaptive dip-steering, median filter, similarity, dip, azimuth

CLC Number: 

  • TE319
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