ARTICLE

Carbonates’ dual-physics modeling aimed at seismic reservoir characterization

ALIREZA SHAHIN MICHAEL MYERS LORI HATHON
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Department of Petroleum Engineering, University of Houston - Downtown, Houston, TX 77002, U.S.A.,
JSE 2017, 26(4), 351–365;
Submitted: 29 August 2016 | Accepted: 7 May 2017 | Published: 1 August 2017
© 2017 by the Authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC-by the license) ( https://creativecommons.org/licenses/by-nc/4.0/ )
Abstract

Shahin, A., Myers, M. and Hathon, L., 2017. Carbonates’ dual-physics modeling aimed at seismic reservoir characterization. Journal of Seismic Exploration, 26: 351-365. Staged Differential Effective Medium (SDEM) models are general techniques for modeling the impact of mineralogy and texture on permeability, resistivity, and acoustic measurements. Independent investigations of resistivity and acoustic properties have been previously addressed the problem for carbonate reservoirs. The literature lacks a jointly optimized model which is proposed in this paper. To further constrain the model parameters in the nonlinear optimization, independent measurements of petrophysical (NMR) and petrographical properties (wCT) are used as inputs to the model. The calibrated petro-elastic and petro-electric models that we generate allow pore structure to be derived from velocity and resistivity interpretations of well logs. Rock physics templates that are created using SDEM are extremely important to calibrate and interpret pre-stack seismic inversion results.

Keywords
velocity
resistivity
carbonate
staged
differential
effective
model
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Journal of Seismic Exploration, Electronic ISSN: 0963-0651 Print ISSN: 0963-0651, Published by AccScience Publishing