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:
Dec. 06, 2011
Filed:
Mar. 31, 2008
Applicants:
Leendert Combee, Oslo, NO;
Michael Malling, Oslo, NO;
Phil Heelan, Asker, NO;
Inventors:
Assignee:
WesternGeco L. L. C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/08 (2006.01); G01V 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
To perform an electromagnetic (EM) surveying of a subterranean structure, a signal generator produces a signal having an analog continuous waveform without steps in the waveform. Producing the signal is in response to an indication specifying a characteristic of the signal. An antenna is responsive to the signal having the analog continuous waveform to emit an EM field to produce the EM surveying of the subterranean structure.