Glöckner, M., Walda, J., Dell, S., Gajewski, D., Karstens, Jens , Kläschen, Dirk and Berndt, Christian (2019) Imaging zero-offset 3D P-cable data with CRS method. Geophysical Journal International, 219 (3). pp. 1876-1884. DOI 10.1093/gji/ggz403.

Preview	Text (This article has been accepted for publication in [Geophysical Journal International] Published by Oxford University Press on behalf of the Royal Astronomical Society.) ggz403.pdf - Accepted Version Download (3MB) | Preview
	Text Gloeckner.pdf - Published Version Restricted to Registered users only Download (9MB) | Contact

Abstract

Standard seismic acquisition and processing require appropriate source-receiver offsets. P-cable technology represents the opposite, namely, very short source-receiver offsets at the price of increased spatial and lateral resolution with a high-frequency source. To use this advantage, a processing flow excluding offset information is required. This aim can be achieved with a processing tuned to diffractions because point diffractions scatter the same information in offset and midpoint direction. Usually, diffractions are small amplitude events and a careful diffraction separation is required as a first step. We suggest the strategy to use a multiparameter stacking operator, e.g, common-reflection surface, and stack along the midpoint direction. The obtained kinematic wavefront attributes are used to calculate time-migration velocities. A diffractivity map serves as filter to refine the velocities. This strategy is applied to a 3D P-cable data set to obtain a time-migrated image.

Actions (login required)

View Item