Lithologic Reservoirs ›› 2015, Vol. 27 ›› Issue (4): 127-133.doi: 10.3969/j.issn.1673-8926.2015.04.019

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Progress of reservoir uncertainty modeling

Dai Weiyan1, Li Shaohua2, Qiao Jiayi2, Liu Shiyu2   

  1.  1. Key Laboratory of Exploration Technologies for Oil and Gas Resources , Ministry of Education , Yangtze University ,Wuhan 430100 , China ; 2. School of geosciences , Yangtze University , Wuhan 430010 , China
  • Online:2015-07-20 Published:2015-07-20

Abstract:

Due to the incomplete information and reservoir heterogeneity, it is unable to accurately determine the distribution of reservoir and its properties. Stochastic modeling technique can characterize the uncertainty of geologic model by generate multiple realizations through changing the stochastic simulation path. Reservoir uncertainty modeling is a new technology developed on the basis of the stochastic modeling, and it paid more emphasis on the characterization and evaluation of uncertainty that resulted from data acquisition, modeling parameter and response of models. Based on a large number of relevant references, this paper classified the sources of uncertainty in the process of reservoir modeling, expounded the local uncertainty, spatial uncertainty and response uncertainty in reservoir modeling, and put forward some methods to reduce the uncertainty. The research of the reservoir uncertainty mainly focused on the aspects of uncertainty evaluation and uncertainty reduction at present, and the research of uncertainty modeling methods should be strengthen.

 

Key words: i nt ra-pl at f orm reefand shoal , devel opm entm odel , Ji anshui gou prof i l e , Changxi ngForm at i on , H uayi ng-
shanarea

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