Improvement and Analysis of Carbonate Reservoir Saturation Model

doi:10. 3863/j. issn. 1674 – 5086. 2013. 05. 005

Abstract

Abstract:

In order to understand the current situation of carbonate reservoir water saturation models，and to offer basic information
for saturation evaluation in heterogeneous reservoir，this paper summarizes the current saturation interpretation models.
According to study objects，conductive mechanism and study methods，the carbonate reservoir saturation interpretation models
are divided into four types：Archie and its extended empirical saturation models，saturation models of dual and triple porosity
system based on different porosity types，saturation models of dual and triple porosity system based on different porosity size，
and saturation models based on effective medium theory. The conductive mechanism，assumption and application of different
saturation interpretation models have been discussed. It points out that the Archie formula is concise，and always equivalent in
the numerical sense after scaled by the data of experimental analysis and the triple-model will be the most conventional one that
we expected currently，and based on the discussion we suggests that rock conductive mechanism，petrophysics experiment and
the calculation of model parameters need further research，and that the pore network model based on digital core is an important
research subject in carbonate reservoir evaluation.

Key words: saturation, porosity model, fracture, carbonate reservoir, vuggy reservoir, digital core

Wang Min. Improvement and Analysis of Carbonate Reservoir Saturation Model[J]. 西南石油大学学报(自然科学版), DOI: 10. 3863/j. issn. 1674 – 5086. 2013. 05. 005.

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