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subsalt pore pressure

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6 - Integrating Seismic Imaging, Rock Physics, and Geopressure
Nader C. Dutta, Ran Bachrach, Tapan Mukerji, Stanford University, California
Book:

Quantitative Analysis of Geopressure for Geoscientists and Engineers

Published online:

10 February 2021

Print publication:

11 March 2021, pp 281-309
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Summary

This chapter discusses technologies that yield geologically plausible and physically possible interval velocities from surface seismic data. The workflow is termed RPGVM, rock physics guided velocity modeling. The approach can be used on any algorithm for interval velocity computations – be it conventional or based on inversions such as tomography and FWI. The goal is to define the parameter base associated with a particular inversion approach so that the inferred velocity model is constrained by rock physics and bounds of pore pressure. Applications from the Gulf of Mexico and offshore India are described. The chapter shows the value of rock physics templates for deriving velocity models with anisotropic tomography.