Enhanced circulation drill bit
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United States of America Patent
Stats
-
Oct 28, 1986
Grant Date -
N/A
app pub date -
Aug 16, 1984
filing date -
Aug 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The enhanced flow drill bit includes an upper body section having a bore therein and a lower body section formed integrally with the upper body section and including three passageways to transmit fluid outwardly of the drill bit body. The passageways, when intermittently open, transmit fluid flowing downwardly through the drill bit body and outwardly of the passageways to cause a cross flow in the area of the cone-type cutters. A rotor is mounted within a bore within the upper body section to intermittently open and close passageways to provide for an intensification of flow through the remaining open passageway to create high jet impact force of fluid flowing outwardly of the drill bit body to enhance cross flow and the removal of drill cuttings.
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