Abstract

Summary The application of amplitude versus offset (AVO) in the analysis of carbonate reservoirs is on the increase in the Western Canadian Sedimentary Basin (WCSB). This has contributed to a rapidly increasing knowledge of the physical properties of carbonate rocks, and in the active exploration and delineation of carbonate reservoirs. It has been found that not only porosity but also fluid effects may be determined through AVO. Information from a carbonate reservoir, especially that of a fluid effect can be obtained from basic AVO gather and attribute analysis as well as elastic parameter inversion. Recent advances in these areas are reviewed. Furthermore this paper includes new studies in carbonate rock properties, carbonate AVO characteristics due to fluid effects, and elastic rock properties that form the basis for calibration and interpretation, as key issues to be considered.

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