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Application of probabilistic facies prediction and estimation of rock physics parameters in a carbonate reservoir from Iran
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2013 (English)In: Journal of Geophysics and Engineering, ISSN 1742-2132, Vol. 10, no 1, 015008- p.Article in journal (Refereed) Published
Abstract [en]

In this study, a carbonate field from Iran was studied. Estimation of rock properties such as porosity and permeability is much more challenging in carbonate rocks than sandstone rocks because of their strong heterogeneity. The frame flexibility factor (gamma) is a rock physics parameter which is related not only to pore structure variation but also to solid/pore connectivity and rock texture in carbonate reservoirs. We used porosity, frame flexibility factor and bulk modulus of fluid as the proper parameters to study this gas carbonate reservoir. According to rock physics parameters, three facies were defined: favourable and unfavourable facies and then a transition facies located between these two end members. To capture both the inversion solution and associated uncertainty, a complete implementation of the Bayesian inversion of the facies from pre-stack seismic data was applied to well data and validated with data from another well. Finally, this method was applied on a 2D seismic section and, in addition to inversion of petrophysical parameters, the high probability distribution of favorable facies was also obtained.

Place, publisher, year, edition, pages
2013. Vol. 10, no 1, 015008- p.
Keyword [en]
facies prediction, Bayesian inversion, frame flexibility factor, carbonate reservoir
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-196552DOI: 10.1088/1742-2132/10/1/015008ISI: 000314688300008OAI: oai:DiVA.org:uu-196552DiVA: diva2:610808
Available from: 2013-03-13 Created: 2013-03-11 Last updated: 2013-03-13Bibliographically approved

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Malehmir, Alireza
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