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:
May. 22, 2012
Filed:
May. 18, 2007
Philip J. Summerfield, Katy, TX (US);
Brian J. Fielding, Richmond, TX (US);
Larry S. Gale, Dallas, TX (US);
Philip J. Summerfield, Katy, TX (US);
Brian J. Fielding, Richmond, TX (US);
Larry S. Gale, Dallas, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Apparatus and method for a steerable horizontal electric dipole source system for underwater deployment as a moving source in electromagnetic surveying of subsurface regions for hydrocarbons. Position locating sensors () are placed near each electrode (), and means () are provided for correcting the electrodes to be at the same elevation with azimuth aligned with the source tow line () and the electrode mid-point positioned over the source tow line, based on instantaneous location information from the sensors. The streamer () connecting the electrodes may also be monitored for shape by sensors, with corrections made by lateral and vertical control means disclosed herein. The invention can be applied to any marine streamer used in geophysical surveys, including a towed streamer () of electromagnetic or seismic receivers ().