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:
Mar. 28, 2017
Filed:
Sep. 09, 2014
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Erik P. Eriksen, Calgary, CA;
Michael Eric Moffitt, Kingwood, TX (US);
Assignee:
SMITH INTERNATIONAL, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/00 (2006.01); E21B 47/09 (2012.01); E21B 7/20 (2006.01);
U.S. Cl.
CPC ...
E21B 47/09 (2013.01); E21B 7/20 (2013.01);
Abstract
A system and method for locating a bottom hole assembly during liner drilling. The system and method employ a liner and a drill string. The liner may include a stop sub. The drill string may include a bottom hole assembly position indicator. In one or more embodiments, the bottom hole assembly position indicator is configured to engage the stop sub and arrest further advancement of the drill string.