Comparative study between Kuster-Toksoz and differential effective medium method for determining pore type in carbonate reservoir

Y. N. Candikia, Mohammad Syamsu Rosid, M. W. Haidar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Characterizing or understanding carbonate rocks is always challenging. This is because carbonate rocks have a complex pore system due to their diagenesis process which is very intense. The diagenesis process causes changes in the mineralogy and the texture of the original frame which make a variety in pore types within carbonate rocks. Carbonate's pore system affects propagation wave velocity, so that seismic responses in carbonate rocks are poorly understood. Pore types of carbonate rocks could be determined by rock physics methods such as Kuster-Toksoz and Differential Effective Medium (DEM). Both methods generate some physical parameters models of the bulk and shear moduli of rocks. The input parameters are bulk and shear moduli of matrix and inclusion, geometry factor and fraction of inclusion. After performing both methods, effective bulk and shear moduli are extracted and the rock's pore type could also be determined by each method. Even though both methods have a similar function, they have a different way to generate the effective bulk and the shear moduli. The Kuster-Toksoz method focuses on the final condition of the rocks while the DEM method pays attention to not only the final condition, but also the process of how the rocks are (reached their final conditioned) formed. Then, the results of both methods are compared and controlled by well data. Based on that comparison, the DEM method is the one that has a higher coefficient correlation of pressure and shear wave velocity than the Kuster-Toksoz method. As a result, the DEM method is considered as a more suitable method for carbonate rock in determining the pore type of carbonate rocks and predicting their shear wave velocity.

Original languageEnglish
Title of host publicationInternational Symposium on Current Progress in Mathematics and Sciences 2016, ISCPMS 2016
Subtitle of host publicationProceedings of the 2nd International Symposium on Current Progress in Mathematics and Sciences 2016
EditorsKiki Ariyanti Sugeng, Djoko Triyono, Terry Mart
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415362
DOIs
Publication statusPublished - 10 Jul 2017
Event2nd International Symposium on Current Progress in Mathematics and Sciences 2016, ISCPMS 2016 - Depok, Jawa Barat, Indonesia
Duration: 1 Nov 20162 Nov 2016

Publication series

NameAIP Conference Proceedings
Volume1862
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Symposium on Current Progress in Mathematics and Sciences 2016, ISCPMS 2016
CountryIndonesia
CityDepok, Jawa Barat
Period1/11/162/11/16

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