Guang Yue Chen

US Patent:

20160187512, Jun 30, 2016

Filed:

Jan 13, 2015

Appl. No.:

14/908103

Inventors:

- Massy, FR
Hongbo BI - Katy TX, US
Guang CHEN - Katy TX, US

International Classification:

G01V 1/36
G01V 1/30
G01V 1/40
G01V 1/28

Abstract:

Anisotropy errors in seismic velocity data for a geophysical structure are detecting by obtaining seismic data for the geophysical structure, using conventional ray-based tomography to generate an initial model of the geophysical structure, the initial model containing initial values for Thomsen parameters velocity along an axis of symmetry, epsilon and delta, using a first inversion process preferably transmission-based full waveform inversion of the seismic data to obtain updated values for epsilon and using a second inversion process preferably ray-based reflection tomography of the seismic data to obtain updated values for velocity along the axis of symmetry.