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. 24, 2009
Filed:
May. 11, 2007
Lester I. Clark, The Woodlands, TX (US);
John C. Thomas, Magnolia, TX (US);
Jeffrey B. Lund, Salt Lake City, UT (US);
Eric E. Mcclain, Spring, TX (US);
Lester I. Clark, The Woodlands, TX (US);
John C. Thomas, Magnolia, TX (US);
Jeffrey B. Lund, Salt Lake City, UT (US);
Eric E. McClain, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.