Downhole tool engaging a tubing string between a drill bit and tubular for reaming a wellbore
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United States of America Patent
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Dec 17, 2013
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N/A
app pub date -
May 8, 2013
filing date -
Aug 27, 2012
priority date (Note) -
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Abstract
A downhole tool for bidirectional reaming of a wellbore with a tubular body with a central cutting section between a first end segment and a second end segment, wherein the central cutting section has a plurality of helical blades separated by flute sections, and wherein the helical blades each have at least two spiral angled sections connected together, polydiamond cutter nodes, high strength carbide cutting nodes, tungsten carbide hardfacing coating or combinations thereof on the helical blades, and wherein the outer diameter of the central cutting section is larger than the outer diameter of each of the end segments.
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