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:
Jun. 20, 2017
Filed:
Jul. 08, 2015
Applicant:
Pgs Geophysical As, Oslo, NO;
Inventors:
Stian Hegna, Hovik, NO;
Gregory Ernest Parkes, Corsham, GB;
Assignee:
PGS Geophysical, A.S., Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/12 (2006.01); G01S 3/80 (2006.01); G01S 1/72 (2006.01); G01V 1/36 (2006.01); G01V 1/38 (2006.01); G01V 1/00 (2006.01);
U.S. Cl.
CPC ...
G01V 1/36 (2013.01); G01V 1/006 (2013.01); G01V 1/3808 (2013.01); G01V 2210/56 (2013.01);
Abstract
A method for marine seismic surveying includes separating up-going and down-going wavefields from seismic energy emitted by at least one marine seismic energy source. The separated up-going and down-going wavefields are propagated from the at least one marine seismic energy source to at least one of a water surface and a common reference depth. One of the up-going and down-going wavefields is phase shifted 180 degrees. The propagated, phase shifted up-going and down-going wavefields are summed.