Full text loading...
-
Generalization of the EPSI Primary Estimation Algorithm for Deep-towed and Slanted Cables
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
Summary
Properly removing the ghost effect for deep-towed and slanted cables is a non-trivial task, due to the strong notch effects of such geometries. However, processing steps like surface-related multiple elimination (SRME) and the recently developed estimation of Primaries by sparse inversion (EPSI) algorithms require ghost-free data as input. Therefore, EPSI is redefined to invert directly for the primaries without the ghost, while the input data has ghost effects. In this way the deghosting process becomes part of the inversion scheme and can be optimally handled. It will be shown that it is possible to extend the EPSI algorithm for handling ghost from deep-towed and even slanted cables.
© EAGE Publications BV