Simultaneous inversion of velocity and reflectivity

Yang Yang; Jaime Ramos-Martinez; Dan Whitmore; Guanghui Huang; Nizar Chemingui

doi:10.3997/1365-2397.fb2021091

ISSN: 0263-5046
E-ISSN: 1365-2397

Simultaneous inversion of velocity and reflectivity
Authors Yang Yang¹, Jaime Ramos-Martinez¹, Dan Whitmore¹, Guanghui Huang¹, Nizar Chemingui¹
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Affiliations: ¹ PGS
Source: First Break, Volume 39, Issue 12, Dec 2021, p. 55 - 59
DOI: https://doi.org/10.3997/1365-2397.fb2021091
- Published online: 01 Dec 2021

Abstract

We describe a new seismic inversion workflow to simultaneously invert for velocity and reflectivity. With a single modelling engine, parameterized in terms of velocity and vector reflectivity, the two earth properties are iteratively updated using their appropriate sensitivity kernels based on inverse scattering theory. The vector reflectivity is estimated as a data domain least-squares migration and is the key for updating the velocity model beyond the maximum penetration depth of refracted and diving wave energy. With field examples, we demonstrate how the new solution for vector-reflectivity modelling combined with proper inversion kernels enable us to address the long-standing challenge of building full-bandwidth earth models.

EAGE Publications BV

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2021-12-01

2024-04-25

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Simultaneous inversion of velocity and reflectivity

First Break 39, 55 (2021); https://doi.org/10.3997/1365-2397.fb2021091

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Simultaneous inversion of velocity and reflectivity

Abstract

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