Title:
BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS
Document Type and Number:
WIPO Patent Application WO/2011/005774
Kind Code:
A4
Abstract:
An apparatus for reaming or enlarging a borehole comprising a bi-center drill bit having backup cutters thereon.
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Inventors:
WOOD MATTHEW S (US)
SINKINSON JAMES O (US)
SINKINSON JAMES O (US)
Application Number:
PCT/US2010/041084
Publication Date:
June 03, 2011
Filing Date:
July 06, 2010
Export Citation:
Assignee:
BAKER HUGHES INC (US)
WOOD MATTHEW S (US)
SINKINSON JAMES O (US)
WOOD MATTHEW S (US)
SINKINSON JAMES O (US)
International Classes:
E21B10/30; E21B10/573
Attorney, Agent or Firm:
WELBORN, Brian, S. et al. (Baker Hughes IncorporatedP.O. Box 474, Houston TX, US)
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