BIT BREAKER
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United States of America Patent
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N/A
Issued Date -
Sep 20, 2012
app pub date -
Mar 18, 2011
filing date -
Mar 18, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bit breaker for loosening or tightening a drill bit on a drill string incorporating a mud motor permits rotation of the drill bit while the bit box is held stationary. The bit breaker has a lower body which is held stationary on the rig floor and an upper body which houses the drill bit and which is connected to the lower body through a rotational connection. An actuator connected between the upper and lower bodies causes the upper body to rotate relative to lower body for co-rotating the drill bit. The bit box of the mud motor is held stationary using the lower tong of a conventional make-and-break unit.
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