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.

Date of Patent:
Sep. 08, 2020

Filed:

Jan. 10, 2017
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Glenn Andrew Wilson, Houston, TX (US);

Paul F. Rodney, Spring, TX (US);

Akram Ahmadi Kalateh Ahmad, Bedford, MA (US);

Hsu-Hsiang Wu, Sugarland, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/0228 (2012.01); G01C 21/20 (2006.01); E21B 47/022 (2012.01); E21B 43/24 (2006.01); E21B 47/18 (2012.01);
U.S. Cl.
CPC ...
E21B 47/0228 (2020.05); E21B 47/022 (2013.01); G01C 21/20 (2013.01); E21B 43/2406 (2013.01); E21B 47/18 (2013.01);
Abstract

Systems and methods for active ranging-while-drilling (ARWD) for collision avoidance and/or well interception. A method for ranging while drilling may comprise employing a rotating magnet assembly to induce a changing magnetization and/or electric current in a conductive member disposed in a target wellbore, wherein the rotating magnet assembly may be employed in a second wellbore; measuring at least one component of a magnetic gradient tensor using receivers; and calculating a relative location of the conductive member based at least in part on the measurements of the at least one component of the magnetic gradient tensor.


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