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Direct nonlinear inversion of 1D acoustic media using inverse scattering subseries

Haiyan Zhang and Arthur B. Weglein
Direct nonlinear inversion of 1D acoustic media using inverse scattering subseries (in Advances in seismic imaging and inversion, Stefan Buske (editor), Isabelle Lecomte (editor), Tamas Nemeth (editor), Stephane Operto (editor) and Valenti Sallares (editor))
Geophysics (November 2009) 74 (6, Suppl.): WCD29-WCD39

Abstract

A task-specific, multiparameter (more than one mechanical property changes across a reflector), direct nonlinear inversion subseries of the inverse-scattering series is derived and tested for an acoustic medium in which velocity and density vary vertically. Task-specific means that terms in the distinct subseries corresponding to tasks for imaging only and inversion only are identified and separated. Direct means there are formulas that solve explicitly for and output the physical properties, without, e.g., search algorithms, model matching and optimization schemes, and proxies that typically characterize indirect methods. Numerical test results with analytic data indicate that one term beyond linear provides added value beyond standard linear techniques, and the improved estimates are valid over a larger range of angles. The direct acoustic inversion is nonlinear. It serves as an important step for new concepts and methods to guide the much more complicated and minimally realistic elastic inverse for exploration seismology target identification purposes.


ISSN: 0016-8033
EISSN: 1942-2156
Coden: GPYSA7
Serial Title: Geophysics
Serial Volume: 74
Serial Issue: 6, Suppl.
Title: Direct nonlinear inversion of 1D acoustic media using inverse scattering subseries
Title: Advances in seismic imaging and inversion
Author(s): Zhang, HaiyanWeglein, Arthur B.
Author(s): Buske, Stefaneditor
Author(s): Lecomte, Isabelleeditor
Author(s): Nemeth, Tamaseditor
Author(s): Operto, Stephaneeditor
Author(s): Sallares, Valentieditor
Affiliation: ConocoPhillips, Houston, TX, United States
Affiliation: Freie Universitaet Berlin, Berlin, Federal Republic of Germany
Pages: WCD29-WCD39
Published: 200911
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 19
Accession Number: 2010-047926
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendices
Illustration Description: illus.
Secondary Affiliation: NORSAR, NOR, NorwayChevron, USA, United StatesUniversite Nice-Sophia Antipolis, FRA, FranceCSIC, Centre Mediterrani d'Investigacions Marines i Ambientals, ESP, SpainUniversity of Houston, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201026
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