Westerngeco L.l.p.

Morten Svendsen

Kenneth E Welker

Julian Edward Kragh

Johan O A Robertsson

Jon-Fredrik Hopperstad

Svein Arne Frivik

Ottar Kristiansen

Henk Keers

Aslaug Stroemmen Melboe

Luren Yang

Julian Edward (Ed) Kragh

Ulrich Hemmerle

Ed Kragh

To acquire near-zero offset survey data, a survey source and a first streamer attached to the survey source are provided, where the first streamer has at least one survey receiver. A second streamer separate from the survey source and the first streamer includes survey receivers. Near-zero offset data is measured using the at least one survey receiver of the first streamer.

Acquiring near-zero offset survey data

One embodiment of the invention concerns a probe that couples to a seismic vessel via a tow cable. When deploying probes from a seismic vessel that is towing source arrays and streamers, the probe and its tow cable can tangle with elements of the towed seismic spread. However, a cable guide may be used to lessen the risk for such entanglement by guiding the tow cable into the water at a distance removed from the seismic spread. Also, the probe may be steerable to steer the probe and tow cable away from the seismic spread. Other embodiments are described herein.

Collision avoidance for instrumented probes deployed from a seismic vessel

A technique facilitates the use of seismic data. The technique utilizes an autonomous underwater vehicle to obtain data on water column characteristics in a seismic survey area. The data can be used to adjust aspects of the seismic survey data and/or the seismic survey technique.

System and method of using autonomous underwater vehicle to facilitate seismic data acquisition

Acquiring near zero offset survey data

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Voyenenga, Norway

Morten Svendsen