The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Apr. 07, 2008
Lasse Amundsen, Trondheim, NO;
Tage Rosten, Trondheim, NO;
Johan O. A. Robertsson, Olso, NO;
Julian Edward Kragh, Finchingfield, GB;
Lasse Amundsen, Trondheim, NO;
Tage Rosten, Trondheim, NO;
Johan O. A. Robertsson, Olso, NO;
Julian Edward Kragh, Finchingfield, GB;
WesternGeco L.L.C., Houston, TX (US);
Abstract
A method of determining a vertical component of particle velocity from seismic data acquired using at least one receiver disposed within a water column includes determining the vertical component of particle velocity from the pressure at a first location and a second location. The first location is the location of a first receiver, and is vertically beneath the second location. The method uses an operator accurate for seismic data acquired at a vertical separation between the first and second locations of up to at least 0.4 times the minimum wavelength of seismic energy used to acquire the seismic data. The second location may be at or above the surface of the water column. Alternatively, the method may be applied to a twin streamer seismic surveying arrangement in which the second location is below the surface of the water column and is the location of a second receiver.