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. 31, 2021
Filed:
Jun. 07, 2018
Applicant:
Pgs Geophysical As, Oslo, NO;
Inventors:
Lars Erik Magnus Björnemo, Houston, TX (US);
Johan Mattsson, Houston, TX (US);
Assignee:
PGS Geophysical AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/08 (2006.01); G01V 99/00 (2009.01); G01V 3/38 (2006.01);
U.S. Cl.
CPC ...
G01V 3/083 (2013.01); G01V 3/38 (2013.01); G01V 99/005 (2013.01); G01V 2003/086 (2013.01);
Abstract
Inversion of enhanced-sensitivity controlled source electromagnetic data can include combining measured controlled source electromagnetic (CSEM) data onto a common set of virtual receiver positions for each of a plurality of positions of a source along a survey path, determining a steering vector that enhances a sensitivity of the measured CSEM data to a subsurface resistivity variation, and performing an inversion using the measured CSEM data and modeled CSEM data, each having the steering vector applied thereto as a data weight, to better identify the subsurface resistivity variation.