Drillable drill bit nozzle
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United States of America Patent
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-
Feb 1, 2005
Grant Date -
Sep 4, 2003
app pub date -
Mar 5, 2003
filing date -
Apr 13, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A drill bit nozzle providing a through bore for the passage of drilling fluid through a drill bit. The nozzle is made of a material or materials which can be drilled through by standard well bore drilling equipment. The material(s) are selected to provide a surface to the through bore which has a relatively high resistance to erosion to withstand the abrasive and corrosive impact of jetted drilling fluid. Embodiments are described using a hard chrome/copper combination and a single rubber material.
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