Westerngeco L.l.p.

Phil Kitchenside

Henk Keers

Gabriele Busanello

Nicolae Moldoveanu

Craig J Beasley

Susanne Rentsch

Dave Nichols

A technique includes receiving seismic data acquired by an array of seismic sensors during a towed marine survey of a subsurface and performing migration velocity analysis to determine a background velocity model of the subsurface based at least in part on particle motion derived from the seismic data.

Migration velocity analysis using seismic data

A technique includes receiving seismic data, which are indicative of pressure measurements and pressure gradient measurements acquired in a seismic survey of at least one subterranean formation. The technique includes modeling an image of the subterranean formation(s) as a function of the pressure measurements and the pressure gradient measurements. The technique includes determining the image based on the modeling.

Imaging with vector measurements

A subterranean structure is characterized using composite seismic response data received from a plurality of sources. Phase encoding is applied to the data in which phase shifts are selected based on frequency variation of noise terms. The phase-encoded data is then migrated and a representation of the subterranean structure is produced according to the migrating.

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Orpington, United Kingdom

Phil Kitchenside