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:
Sep. 09, 2014
Filed:
Sep. 16, 2011
Applicant:
Leonty A. Tabarovsky, Cypress, TX (US);
Inventor:
Leonty A. Tabarovsky, Cypress, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/04 (2006.01); G01V 3/26 (2006.01); E21B 47/09 (2012.01);
U.S. Cl.
CPC ...
G01V 3/26 (2013.01); E21B 47/0905 (2013.01);
Abstract
A method and apparatus for steering a drilling assembly within a reservoir of an earth formation is disclosed. The drilling assembly is positioned within the reservoir between a conductive upper layer having a DC magnetic field and a conductive lower layer having a DC magnetic field. A sensor of the drilling assembly measures a magnetic field in the reservoir resulting from the DC magnetic field of the conductive upper layer and the DC magnetic field of the conductive lower layer. A processor uses the measured magnetic field to steer the drilling assembly within the reservoir.