A study of multiscale seismic data joint inversion method

Hemin Yuan, De-hua Han
2013 SEG Technical Program Expanded Abstracts 2013   unpublished
Most conventional inversion methods are mainly based on surface seismic data. Although it has good lateral continuity, its vertical resolution is poor, due to the limitations of surface seismic data. In this paper, we integrate the surface seismic data, VSP data, and crosswell data in the inversion equation. Because these different data have different advantages, they can compensate for each other, and thus improve the inversion resolution. Also, we used the modified Cauchy prior information of
more » ... rior information of reflectivity, and made the statistics of well data, which demonstrated its reliability. To solve the inversion equation, I adopted the modified PRP conjugate gradient method, which is stable and faster than matrix inverse method. Finally, we tested this inversion method with 2D model and real survey data, which suggested this method has better precision. Surface seismic data, VSP data and crosswell data reflect the characteristics of the same geologic body, namely, they are the responses of the same geologic body, but they are acquired and processed independently. Therefore, the joint
doi:10.1190/segam2013-0072.1 fatcat:5gj45spronhdlc3d4dsfyi7ed4