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Avo Analysis Using Walkaway Vsp In Offshore Malaysia: A Case StudyNormal access

Authors: N.L. Rafiuddin, S. Mohamed Taha and S. Saad Elkurdy
Event name: EAGE Conference on Reservoir Geoscience 2018
Session: Session 10: VSP and DAS
Publication date: 03 December 2018
DOI: 10.3997/2214-4609.201803223
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 313.87Kb )
Price: € 20

This study aims to analyse AVO effect at the reservoir levels using common receiver gathers from a walkaway VSP. We present a step-by-step approach for seismic interpreters to further leverage on their VSP data, beyond the common time-to-depth relationship. The result of this study is an analysis of the reflectivity, R, with incidence angle θ, as well as intercept and gradient values. Results show that we have varying intercept and gradient values for two orthogonal source lines, which demonstrates the influence of anisotropy towards the AVO.

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