Flow guide actuation
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United States of America Patent
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Apr 2, 2013
Grant Date -
Sep 17, 2009
app pub date -
May 28, 2009
filing date -
Nov 21, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In one aspect of the present invention, a downhole drill string assembly comprises a bore there through to receive drilling fluid. A turbine may be disposed within the bore and exposed to the drilling fluid. At least one flow guide may be disposed within the bore and exposed to the drilling fluid wherein the flow guide acts to redirect the flow of the drilling fluid across the turbine. The flow guide may be adjusted by an actuator. Adjustments to the flow guide may be controlled by a downhole telemetry system, a processing unit, a control loop, or any combination thereof. In various embodiments the turbine may comprise rotatable turbine blades.
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