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:
Jul. 24, 2018
Filed:
Jun. 27, 2014
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Andrew Brooks, Tomball, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01P 15/00 (2006.01); E21B 47/022 (2012.01); E21B 7/06 (2006.01); G01V 3/28 (2006.01);
U.S. Cl.
CPC ...
G01P 15/00 (2013.01); E21B 7/06 (2013.01); E21B 47/02216 (2013.01); G01V 3/28 (2013.01);
Abstract
A method for magnetic ranging includes rotating a downhole tool in a drilling well in sensory range of magnetic flux emanating from a target well having an AC magnetic source deployed therein. The downhole tool includes a magnetic field sensor deployed therein. The magnetic field sensor measures a magnetic field vector while rotating. The measured magnetic field vector is processed to compute at least one of a distance and a direction from a drilling well to a target well.