E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/26 (2006.01)
Patent
CA 2644715
A drilling tool for drilling a wellbore that includes at least a reaming section and a pilot conditioning section. The pilot conditioning section then includes at least one pilot conditioning blade having at least one cutting element formed of an impregnated matrix material. An outermost extent of the at least one cutting element from a central axis of the tool body is at least half of a pilot hole diameter.
Laird Tommy
Makkar Navish
Whipple Gordon
Borden Ladner Gervais Llp
Smith International Inc.
LandOfFree
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