Journal of African Earth Sciences, ( ISI ), Volume (126), No (1), Year (2017-2) , Pages (123-135)

Title : ( Shear wave prediction using committee fuzzy model constrained by lithofacies, Zagros basin, SW Iran )

Authors: SADJAD KAZEMSHIROODI , Mohammad Ghafoori , H. R. Ansari , Gholam Reza Lashkaripour , M. Ghanadian ,

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The main purpose of this study is to introduce the geological controlling factors in improving an intelligence-based model to estimate shear wave velocity from seismic attributes. The proposed method includes three main steps in the framework of geological events in a complex sedimentary succession located in the Persian Gulf. First, the best attributes were selected from extracted seismic data. Second, these attributes were transformed into shear wave velocity using fuzzy inference systems (FIS) such as Sugeno's fuzzy inference (SFIS), adaptive neuro-fuzzy inference (ANFIS) and optimized fuzzy inference (OFIS). Finally, a committee fuzzy machine (CFM) based on bat-inspired algorithm (BA) optimization was applied to combine previous predictions into an enhanced solution. In order to show the geological effect on improving the prediction, the main classes of predominate lithofacies in the reservoir of interest including shale, sand, and carbonate were selected and then the proposed algorithm was performed with and without lithofacies constraint. The results showed a good agreement between real and predicted shear wave velocity in the lithofacies-based model compared to the model without lithofacies especially in sand and carbonate.

Keywords

Seismic attributes; Shear wave velocity; Lithofacies; Committee fuzzy machine; Sedimentary
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@article{paperid:1062798,
author = {KAZEMSHIROODI, SADJAD and Ghafoori, Mohammad and H. R. Ansari and Lashkaripour, Gholam Reza and M. Ghanadian},
title = {Shear wave prediction using committee fuzzy model constrained by lithofacies, Zagros basin, SW Iran},
journal = {Journal of African Earth Sciences},
year = {2017},
volume = {126},
number = {1},
month = {February},
issn = {1464-343X},
pages = {123--135},
numpages = {12},
keywords = {Seismic attributes; Shear wave velocity; Lithofacies; Committee fuzzy machine; Sedimentary succession},
}

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%0 Journal Article
%T Shear wave prediction using committee fuzzy model constrained by lithofacies, Zagros basin, SW Iran
%A KAZEMSHIROODI, SADJAD
%A Ghafoori, Mohammad
%A H. R. Ansari
%A Lashkaripour, Gholam Reza
%A M. Ghanadian
%J Journal of African Earth Sciences
%@ 1464-343X
%D 2017

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