Patent ID: 8905162
Filing Date: 2014-12-09
Classification: E21B

Abstract:
1. A drill bit comprising: a bit body having a fluid passageway therein; a fluid guide operatively connected to the bit body and comprising at least one nozzle, wherein said at least one nozzle comprises at least one inlet operatively associated with the fluid passageway, wherein the fluid guide comprises at least one nozzle disposed therein, wherein the at least one nozzle is both flanked by fluid guide blades and located within a junk slot on an outer surface of the fluid guide; a plug movable between a first position in which the plug obstructs said at least one inlet and prevents fluid communication between the fluid passageway and said at least one nozzle and a second position in which said at least one nozzle is in fluid communication with the fluid passageway via said at least one inlet; and an actuator associated with the plug and adapted to move the plug between the first position and the second position.