Drill bit having functional articulation to drill boreholes in earth formations in all directions
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United States of America Patent
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Dec 11, 2012
Grant Date -
Dec 31, 2009
app pub date -
Jun 22, 2009
filing date -
Jun 27, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A drill bit is described herein, having a first bit face with a first plurality of cutters oriented to bore in a first direction, and a second bit face with a second plurality of cutters oriented to bore in one or more second directions. The pluralities of cutters enable functional articulation of the drill bit, such that the drill bit can change direction within a borehole without requiring removal of the drill bit. The drill bit can thereby drill in a downhole direction and lateral directions, can back ream through the borehole, and can provide the borehole with one or more oversized regions, as desired.
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