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:
Feb. 24, 2015
Filed:
Dec. 21, 2011
Applicants:
Sharp Ugwuocha, Aberdeen, GB;
Steven Rae, Aberdeen, GB;
Inventors:
Sharp Ugwuocha, Aberdeen, GB;
Steven Rae, Aberdeen, GB;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/00 (2006.01); E21B 10/633 (2006.01); E21B 10/42 (2006.01); E21B 10/627 (2006.01);
U.S. Cl.
CPC ...
E21B 10/42 (2013.01); E21B 10/627 (2013.01);
Abstract
An earth removal member with features for facilitating drill-through is provided for drilling with casing or liner applications. In one embodiment, the casing bit includes a tubular body; a nose attached to one end of the tubular body, wherein the nose includes a blade support and comprises a drillable material; a blade attached to the blade support using mating profiles; cutters disposed along the blade; and a nozzle disposed in the nose.