A classification method for permeability model in complex anisotropy reservoirs
Received date: 2016-08-06
Revised date: 2016-12-05
Online published: 2017-02-10
For the lack of homogeneity and the same porosity conditions permeability diverges obviously in different blocks or different layers.Considering various influencing factors on complex reservoir’s permeability,using the traditional permeability model to improve flowing unit index methods,classification model of the permeability in the Yinggehai Basin was set up.And put forward the selection by Gassmann fluid replacement after the correction of longitudinal wave time difference,porosity and shale content three logging curve,Fisher discriminant analysis is used to establish a new method of reservoir permeability type discriminant standard.Application of the discriminant method in A1,A2 gasfields of Yinggehai Basin,shows that distinguishing the permeability’s type using this method is very accurate.
Zhao Jun,Fan Jia-bao,Dai Xin-yun,He Sheng-lin,Zhang Hai-rong . A classification method for permeability model in complex anisotropy reservoirs[J]. Natural Gas Geoscience, 2017 , 28(2) : 183 -188 . DOI: 10.11764/j.issn.1672-1926.2016.12.001
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