Downhole dual cutting reamer
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United States of America Patent
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Mar 1, 2016
Grant Date -
Sep 4, 2014
app pub date -
Oct 23, 2013
filing date -
Aug 27, 2012
priority date (Note) -
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Abstract
A downhole dual cutting reamer for bidirectional reaming of a wellbore with a tubular body with two cutting sections between end segments. Each cutting section has a plurality of helical blades separated by a flute, and wherein the helical blades are formed from at least two spiral angled sections connected together, with cutting components on the spiral angled sections. The cutting components can be polydiamond cutter nodes, high strength carbide cutting nodes, and tungsten carbide facing coating. The outer diameter of each cutting section is larger than the outer diameter of each of the end segments.
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