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:
Apr. 27, 2021
Filed:
Jul. 13, 2016
Applicant:
Pgs Geophysical As, Oslo, NO;
Inventors:
Gregory Ernest Parkes, Surrey, GB;
Stian Hegna, Oslo, NO;
Assignee:
PGS Geophysical AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/38 (2006.01); G01V 1/36 (2006.01);
U.S. Cl.
CPC ...
G01V 1/364 (2013.01); G01V 1/3808 (2013.01); G01V 1/3861 (2013.01); G01V 2210/56 (2013.01);
Abstract
Seismic data are acquired using a seismic source comprising a plurality of seismic sub-sources disposed in a body of water at a plurality of depths and activated with different time delays. Far-field signatures are determined for the plurality of seismic sub-sources at each of the plurality of depths. A composite ghost-free far-field signature of the seismic source is determined from the far-field signatures for the plurality of seismic sub-sources at each of the plurality of depths and different time delays. A source response is removed from the seismic data using the far-field signatures of the seismic source