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. 11, 2017
Filed:
Apr. 06, 2015
Applicant:
Wwt North America Holdings, Inc., Houston, TX (US);
Inventor:
Sarah Mitchell, Corona, CA (US);
Assignee:
WWT North America Holdings, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/26 (2006.01); E21B 17/14 (2006.01); E21B 17/20 (2006.01);
U.S. Cl.
CPC ...
E21B 10/26 (2013.01); E21B 17/14 (2013.01); E21B 17/20 (2013.01);
Abstract
A drillable reamer shoe having a reamer body and a nose section having a metallic cage containing a plurality of ceramic inserts made from silicon nitride or aluminum oxide. The drillable reamer shoe is positioned on an end of a flexible wellbore casing guide comprising a tubular body having a stiffness lower than a wellbore casing.