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The Leading Edge; November 2009; v. 28; no. 11; p. 1304-1313; DOI: 10.1190/1.3259608
© 2009 Society of Exploration Geophysicists
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INTERPRETER'S CORNER

Using an isochron to constrain amplitude analysis

A case study of a carbonate stratigraphic trap in Saudi Arabia

Timothy H. Keho, Michael K. Broadhead and Fernando A. Neves

Saudi Aramco

Corresponding author: timothy.keho{at}aramco.com

Abstract

A case study is presented which illustrates the benefit of including isochron analysis when analyzing amplitudes influenced by tuning. Since tuning influences the waveform, it also influences the isochron measured from a nearby event to the target. The model which explains the amplitude anomaly must also explain the isochron variation. The approach presented here is a fast and simple way to corroborate more sophisticated methods such as impedance inversion, and to compare the likelihood of various model scenarios.






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Copyright © 2009 by Society of Exploration Geophysicists