Integrated rock typing in carbonate reservoir using MRGC method, a case from SW of Iran
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 9, Issue 2
Abstract
According to thin sections examination prepared from cuttings plus core samples, and using petrophysical data (Electrofacies), 10 microfacies and two lithfacies are recognized in Fahliyan Formation in the Abadan plain. This formation consists of two carbonate ramp and mixed carbonate–siliciclastic (mixed zone) members. Rock type and electrofacies were modelled with using MRGC method. Gamma, acoustic, density, neutron, and resistivity are considered as main logs (model logs) and volume logs that have been evaluated in multimin method like shale, limestone, dolomite, sandstone, and effective porosity which are considered associated logs both have been subjected to training in MRGC method. The best result in MRGC method is 12 cluster model. These results suggest that electrofacies model is in agreement with heterogenetic rock type such as mixed carbonate–siliciclastic environment observed in petrography. Also, in heterogeneous rock type such as carbonate ramp environment electherofacies can’t completely determine geological facies. The result of this study shows that in sedimentary environments where there is a sharp difference between rock types electrofacies can play an important role in interpretation of sedimentary environment.
Authors and Affiliations
Abbas Ramezani Akbari, Hossain Rahimpor Bonab, Mohammad Reza Kamali, Reza Mossavi Harami, A. Kadkhodaie
Keywords
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