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:
Nov. 14, 2017
Filed:
Feb. 18, 2014
Applicant:
Pgs Geophysical As, Oslo, NO;
Inventor:
Gert-Jan Adriaan van Groenestijn, Voorschoten, NL;
Assignee:
PGS Geophysical AS, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 1/28 (2006.01); G01V 1/36 (2006.01); G01V 1/38 (2006.01);
U.S. Cl.
CPC ...
G01V 1/364 (2013.01); G01V 1/28 (2013.01); G01V 1/38 (2013.01); G01V 2210/56 (2013.01); G01V 2210/67 (2013.01);
Abstract
Systems and methods for attenuating multiples in seismic data are presented. In one aspect, predicted surface-related multiples are calculated for seismic data generated by receivers in a marine survey. Estimates of primaries and multiples may be calculated by applying adaptive subtraction to the predicted surface-related multiples. Residual multiples present in the estimated primaries may be identified using multiple diffraction reduction. The residual multiples and estimated multiples are used to generate final estimated multiples that are subtracted from the seismic data to generate primaries with attenuated multiples.