Patent ID: 9309726
Filing Date: 2016-04-12
CPC Classification: E21B

Claim Text:
1. An apparatus for remotely changing the flow profile in a conduit and rotary drill bit based on changing the environment in the borehole, the apparatus comprising: a nozzle adapted for use in a rotary drill bit for drilling an earth borehole, the nozzle comprising: a body configured to be secured within the rotary drill bit, at least one fluid passage of variable geometry through the body for connecting a fluid through the body, an orifice disposed within the body, in fluid communication with the at least one fluid passage and the borehole, and a means for changing the geometry of the at least one fluid passage having at least one movable element, in fluid communication with the fluid passage and the orifice, wherein the at least one movable element is movable from an initial position to at least one other predetermined position in response to intended changes in the borehole environment; the apparatus further comprising at least one means for detecting a plurality of intended changes in at least one physical property of the borehole environment, said plurality of intended changes functioning as a detectable signal, the means for detecting the plurality of intended changes in at least one physical property of the borehole environment further being configured to interpret the signal; a means for actuating the means for changing the geometry of the at least one fluid passage, wherein the means for actuating the means for changing the geometry of the at least one fluid passage is operationally linked to the means for detecting the plurality of intended changes in at least one physical property of the borehole environment; and a means for powering the means for actuating the at least one movable element.