Publication de 4 numéros par an
ISSN Imprimer: 2151-4798
ISSN En ligne: 2151-562X
Indexed in
ROCK TYPE DETERMINATION OF A CARBONATE RESERVOIR USING VARIOUS APPROACHES: A CASE STUDY
RÉSUMÉ
Reservoir rock type determination is one of the main parameters for simulation and prediction of the hydrocarbon reservoir behavior. Hence it is of great importance to use a method that is capable of determining the rock type accurately. In this study, some of the most useful methods, such as capillary pressure, Leverett dimensionless J-function, Winland R35 method, flow zone indicator (FZI), and discrete rock type (DRT), were applied to samples from a carbonate reservoir to determine the various reservoir rock types. The sample set consisted of 265 routine core data and 18 data sets of capillary pressure versus initial water saturation; all were analyzed using the aforementioned determination methods. Results of this study showed that both capillary pressure and Winland R35 were not accurate enough to determine rock types for this carbonate reservoir, mainly because of the high heterogeneity in the reservoir rock properties. For the same reason, the Leverett J-function method was found to be problematic in normalizing all the capillary data into one unique curve. However, FZI and DRT methods successfully classified all data into four discrete rock types, while satisfying the relationships between permeability and porosity for each of them. The calculated permeability data for each rock type classified by FZI and DRT methods were in good agreement with core permeability data.
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Abedini Ali, Torabi Farshid, Pore size determination using normalized J-function for different hydraulic flow units, Petroleum, 1, 2, 2015. Crossref
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Soleymanzadeh Aboozar, Jamialahmadi Mohammad, Helalizadeh Abbas, Soulgani Bahram Soltani, A new technique for electrical rock typing and estimation of cementation factor in carbonate rocks, Journal of Petroleum Science and Engineering, 166, 2018. Crossref
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Soleymanzadeh Aboozar, Helalizadeh Abbas, Jamialahmadi Mohammad, Soulgani Bahram Soltani, Investigation of analogy between thermal and electrical properties of some reservoir rocks, Bulletin of Engineering Geology and the Environment, 80, 1, 2021. Crossref