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:
Nov. 17, 2020
Filed:
May. 14, 2016
Applicant:
Scientific Drilling International, Inc., Houston, TX (US);
Inventors:
Assignee:
SCIENTIFIC DRILLING INTERNATIONAL, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/0228 (2012.01); E21B 47/0232 (2012.01); E21B 47/024 (2006.01); E21B 47/026 (2006.01); E21B 17/02 (2006.01);
U.S. Cl.
CPC ...
E21B 47/0228 (2020.05); E21B 47/024 (2013.01); E21B 47/026 (2013.01); E21B 47/0232 (2020.05); E21B 17/028 (2013.01);
Abstract
A system includes a surface coil positioned at a known surface position, the surface coil including at least one loop of a conductor. The system also includes a coil controller coupled to the surface coil and adapted to inject a current into the surface coil such that the surface coil generates an electromagnetic field. In addition, the system includes a sensor package positioned within a wellbore adapted to detect the electromagnetic field and determine the position of the wellbore relative to the surface coil.