Downhole turbine assembly
First Claim
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1. A downhole turbine assembly, comprising:
- a drill pipe capable of passing a fluid flow there through;
a turbine disposed within a sidewall of the drill pipe, the turbine including a plurality of blades having flat surfaces, at least one blade of the turbine including polycrystalline diamond;
a course capable of diverting a portion of the fluid flow to the turbine; and
an outlet capable of discharging the diverted portion of the fluid flow from within the drill pipe to an exterior of the drill pipe.
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Abstract
A downhole turbine assembly may comprise a tangential turbine disposed within a section of drill pipe. A portion of a fluid flowing through the drill pipe may be diverted to the tangential turbine generally perpendicular to the turbine'"'"'s axis of rotation. After rotating the tangential turbine, the diverted portion may be discharged to an exterior of the drill pipe.
88 Citations
19 Claims
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1. A downhole turbine assembly, comprising:
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a drill pipe capable of passing a fluid flow there through; a turbine disposed within a sidewall of the drill pipe, the turbine including a plurality of blades having flat surfaces, at least one blade of the turbine including polycrystalline diamond; a course capable of diverting a portion of the fluid flow to the turbine; and an outlet capable of discharging the diverted portion of the fluid flow from within the drill pipe to an exterior of the drill pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A downhole turbine assembly, comprising:
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a drill pipe capable of passing a fluid flow there through, the drill pipe including a sidewall; a turbine disposed within the sidewall of the drill pipe, the turbine including a plurality of blades having flat surfaces, the turbine formed entirely of polycrystalline diamond such that the turbine can operate when a diverted portion of the fluid flow comprises 1-10 gallons/minute (0.003785-0.03785 m3/min) and when the diverted portion of the fluid flow experiences a pressure drop of 500-1000 pounds/square inch (3,447-6,895 kPa) over the turbine; a generator connected to the turbine; a course capable of diverting the diverted portion of the fluid flow to a turbine, the course disposed on a plane perpendicular to a rotational axis of the turbine, and the course is disposed offset from the rotational axis of the turbine; and an outlet capable of discharging the diverted portion of the fluid flow from within the drill pipe to an exterior of the drill pipe, the outlet disposed on the sidewall of the drill pipe, and the outlet comprises a check valve.
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Specification