Integrated rock typing in carbonate reservoir using MRGC method, a case from SW of Iran
Paper Details
Integrated rock typing in carbonate reservoir using MRGC method, a case from SW of Iran
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.
Abdollahie Fard I, Braathen A, Mokhtari M, Alavi SA. 2006. Interaction of the Zagros Fold–Thrust Belt and the Arabian-type, deep-seated folds in the Abadan Plain and the Dezful Embayment, SW Iran. Petroleum Geoscience 12, 347-362.
Al-Bulushi N, King PR, Blunt MJ, Kraaijveld M. 2009. Development of artificial neural network models for prediction water saturation and fluid distribution. Journal of Petroleum Science and Engineering 68(4), 197-208.
Askari AA, Behrouz T. 2011. A fully integrated method for dynamic rock type characterization development in one of Iranian off-shore oil reservoir. University of Tehran, Journal of chemical and petroleum engineering 45(2), 83-96.
Bastani Kahrizak A, Bidhendi MN. 2015. Determination of rock typing in one of carbonate reservoir in South of Iran by using of MRGC method and hydraulic flow. Journal of Biodiversity and Environmental Sciences 6(4), 571-575.
Berberian M. 1995. Master blind thrust faults hidden under the Zagros folds: active basement tectonics and surface morphotectonics. Tectonophysics 241, 193–224.
Davies RB, David MC, Horbury AD, Sharland PR, Simmon MD. 2002. Early to mid-Cretaceous mixed carbonate-clastic shelfal systems: examples, issues and models from the Arabian Plate. Gulf Petro Link, Bahrain, Geo Arabia 7(3), 541-598.
Dunhum RJ. 1962. Classification of carbonate rocks according to depositional texture. In: Ham, W.E. (Ed.), Classification of carbonate rocks. Memoir 1, American Association of Petroleum Geologists 108-121.
Elrick M, Read JF. 1991. Cyclic ramp-to basin carbonate deposits, Lower Mississippian, Wyoming and Montana: a combined field and computer modelling study. Sediment Petrol 61, 1194–1224.
Embry AF, Klovan JE. 1971. A Late Devonian reef tract on northeastern Banks Island, NWT. Bulletin of Canadian Petroleum Geology 19, 730-781.
Flugel E. 2010. Microfacies of Carbonate Rocks: analysis, interpretation and application. Springer 320-405.
Folk RL. 1974. Petrology of Sedimentary Rocks. Austin, Texas, Hemphill Publishing Company 78703, 162-177.
Helle HB, Bhatt A. 2002. Fluid saturation from well logs using committee neural networks. Petroleum Geosciences 8(2), 109-118.
Jamalian M, Adabi MH, Moussavi M, Sadeghi A, Baghbani D, Ariyafar B. 2011. Facies characteristic and paleoenvironmental reconstruction of the Fahliyan Formation, Lower Cretaceous, in the Kuh-e Siah area, Zagros Basin, southern Iran. Facies, Springer 57, 101-122.
Kadkhodaie-Ilkhchi R, Rezaee R, Moussavi-Harami R, Kadkhodaie-Ilkhchi A. 2013. Analysis of the reservoir electrofacies in the framework of hydraulic flow units in the Whicher Range Field, Perth Basin, Western Australia. Journal of Petroleum Science and Engineering 111, 106–120.
Sharland P R, Archer R, Casey DM, Davies RB, Hall SH, Heyward AP, Horbury AD, Simmons MD. 2001. Arabian plate sequence stratigraphy. Special Publication, Geo Arabia 2, 239-247.
Shin-Ju Ye, Rabiller P. 2000. A new tool for electro-facies analysis: Multi-resolution graphbased clustering. SPWLA 41st, Annual Logging Symposium 4-7.
Shin-Ju Ye, Rabiller P. 2005. Automated electrofacies ordering. Petrophysics 46(6), 409-423.
Tavakoli V, Amini A. 2006. Application of multivariate cluster analysis in logfacies determination and reservoir Zonation, case study of Marun Field, south of Iran. University of Tehran, Journal of Sciences 32(2), 69–75.
Abbas Ramezani Akbari, Hossain Rahimpor Bonab, Mohammad Reza Kamali, Reza Mossavi Harami, A. Kadkhodaie, 2016. Integrated rock typing in carbonate reservoir using MRGC method, a case from SW of Iran. J. Biodiv. Environ. Sci., 9(2), 174-182.
Copyright © 2016 by the Authors. This article is an open access article and distributed under the terms and conditions of the Creative Commons Attribution 4.0 (CC BY 4.0) license.