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A new expression for fluid factor using AVO intercept and gradient: theory and application on deep marine reservoir

A new expression for fluid factor using AVO intercept and gradient: theory and application on deep marine reservoir

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1190/int-2023-0088.1. This is version 2 of this Preprint.

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Authors

Mohammed Farfour, John Castagna

Abstract

Numerous AVO fluid indicators have been introduced and proven to be sensitive to hydrocarbon presence. Mathematically, fluid indicators measure the deviation of seismic responses of hydrocarbon-saturated reservoirs from their background in a specific domain. We introduce a new expression for the fluid factor commonly used in AVO analysis and interpretation. The expression is a function of common AVO intercept and gradient and a weighting coefficient that helps suppressing the contribution of lithology and other factors not related to fluid content. The coefficient also assists in calibrating the fluid factor to the local geology. The p...  more

DOI

https://doi.org/10.31223/X5NT43

Subjects

Geology, Geophysics and Seismology, Oil, Gas, and Energy

Keywords

AVO, gas-sand, seismic amplitude, Offshore

Dates

Published: 2024-09-18 23:03

Last Updated: 2024-09-23 22:14

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License

CC-BY Attribution-NonCommercial 4.0 International