Image-wave equations for remigration in anisotropic media

• Grant number: 06/04410-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2007
• End date: August 31, 2009
• Field of knowledge: Physical Sciences and Mathematics - Geosciences
• Principal Investigator: Joerg Dietrich Wilhelm Schleicher
• Grantee: Rafael Aleixo de Carvalho
• Host Institution: Instituto de Matemática, Estatística e Computação Científica (IMECC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

In isotropic and elliptically anisotropic media, the image-wave equations for time and depth remigration are partial differential equations similar to the acoustic wave equation. In this project, we intend to extend the theory of these image waves to more realistic cases of anisotropy like, for instance, transversal isotropy. Beyond the theoretical development, the implementation of numerical methods for the realization of the process is foreseen, in this way providing a new method to analyze the degree of anisotropy in seismic media. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ALEIXO, RAFAEL; SCHLEICHER, JOERG. Traveltime approximations for q-P waves in vertical transversely isotropy media{*}. Geophysical Prospecting, v. 58, n. 2, p. 191-201, MAR 2010. (06/04410-5)

AMAZONAS, DANIELA; ALEIXO, RAFAEL; SCHLEICHER, JOERG; COSTA, JESSE C.. Anisotropic complex Padeacute hybrid finite-difference depth migration. GEOPHYSICS, v. 75, n. 2, p. S51-S59, MAR-APR 2010. (06/04410-5)

ALEIXO, RAFAEL; SCHLEICHER, JOERG. Traveltime approximations for q-P waves in vertical transversely isotropy media*. Geophysical Prospecting, v. 58, n. 2, p. 11-pg., 2010-03-01. (06/04410-5)

AMAZONAS, DANIELA; ALEIXO, RAFAEL; MELO, GABRIELA; SCHLEICHER, JOERG; NOVAIS, AMELIA; COSTA, JESSE C.. Including lateral velocity variations into true-amplitude common-shot wave-equation migration. GEOPHYSICS, v. 75, n. 5, p. S175-S186, SEP-OCT 2010. (06/04410-5)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

CARVALHO, Rafael Aleixo de. Traveltime in vertical transversely isotropic (VTI) media: approximations and parameters inversion. 2009. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Matemática, Estatística e Computação Científica Campinas, SP.