Title:
EARTH-BORING TOOLS AND COMPONENTS THEREOF INCLUDING EROSION-RESISTANT EXTENSIONS, AND METHODS OF FORMING SUCH TOOLS AND COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2011/017451
Kind Code:
A4
Abstract:
Earth boring drill bits include a bit body, an erosion resistant extension, and a shank. The erosion resistant extension includes a generally tubular body, and an erosion resistant material lining the generally tubular body within a fluid passageway. The erosion resistant material lining the generally tubular body within the fluid passageway exhibits an erosion resistance greater than an erosion resistance exhibited by a material of the generally tubular body. Methods of forming an erosion resistant extension include lining at least a portion of a wall of a generally tubular body within a fluid passageway extending through the generally tubular body with an erosion resistant material.
Inventors:
OXFORD JAMES ANDY (US)
Application Number:
PCT/US2010/044448
Publication Date:
July 21, 2011
Filing Date:
August 04, 2010
Export Citation:
Assignee:
BAKER HUGHES INC (US)
OXFORD JAMES ANDY (US)
OXFORD JAMES ANDY (US)
International Classes:
E21B10/54; B22F1/00; E21B10/42; E21B10/60
Attorney, Agent or Firm:
WELBORN, Brian S. et al. (P.O. Box 4740Houston, Texas, US)
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