3C VSP tomography inversion for subsurface P‐ and S‐wave velocity distribution

Autor: Peter Janak, David Dushman, Xiaomin Zhao, Yingping Li, Ran Zhou
Rok vydání: 2005
Předmět:
Zdroj: SEG Technical Program Expanded Abstracts 2005.
Popis: First break times (FBT) of P-wave and S-waves picked from three-component (3C) VSP data were used to produce tomographic velocity profiles and Vp/Vs ratio distribution. 3C Eigenvalue rotation is critical for correctly identifying and accurately picking FBTs of S-waves. The resultant tomographic images provide important information for formation evaluation and produce suitable velocity models for improving migration imaging of subsurface structures.
Databáze: OpenAIRE