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The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

Journal of Petroleum Geology, vol.

20(2), April 1997, pp. 185-204
┬ęCopyright 1997. Scientific Press, U.K. All rights reserved.

FUZZY MODELLING AND THE PREDICTION OF Previous HitPOROSITYNext Hit AND PERMEABILITY FROM THE COMPOSITIONAL AND TEXTURAL ATTRIBUTES OF Previous HitSANDSTONENext Hit

J. H. Fang* and H. C. Chen**

A new method is presented here for Previous HitpredictingNext Hit Previous HitporosityNext Hit and permeability from the compositional and textural characteristics of sandstones. The method employs fuzzy modelling which is a linguistic paradigm based on fuzzy logic, rooted in the theory of fuzzy sets. The essentials of fuzzy modelling are explained using an example in which Previous HitporosityNext Hit and permeability values of a Previous HitsandstoneTop are predicted from five compositional and textural attributes. Fuzzy modelling can be accomplished in five steps:

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