Power generation from a multi-lobed drilling motor

Details Power generation from a multi-lobed drilling motor Power generation from a multi-lobed drilling motor

1992-11-09

1993-09-28

Pellinen, A. D.

Prime-mover dynamo plants

Miscellaneous

Drive gearing

290 43, 290 54, 175 94, 175 99, 175107, F03B 1302, E21B 402

Patent

active

052488969

ABSTRACT:
A power generation unit associated with a downhole drilling motor capable of producing sufficient rotational speeds to produce power for operating downhole devices associated with the drilling operation. The power generation unit takes advantage of the high speed precessional rotation of the rotor within the stator to drive the generator. The assembly includes a multi-lobed rotor displaceable within a stator using drilling fluid pumped therethrough. A crankshaft, mounted at one end concentric with the rotor and at its high speed take-off end concentric with the stator, transfers the rotor center precession to the shaft of the generator. In a preferred embodiment, the generator will include a socket for simply connecting downhole devices requiring electrical power.

REFERENCES:
patent: 2874594 (1959-02-01), Sundt
patent: 2978634 (1961-04-01), Arps
patent: 3036645 (1962-05-01), Rowley
patent: 3840080 (1974-10-01), Berryman
patent: 3964558 (1976-06-01), Fogle
patent: 4134024 (1979-01-01), Wiseman
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patent: 4491738 (1985-01-01), Kamp
patent: 4577116 (1986-03-01), Pinson
patent: 4654537 (1987-03-01), Gaspard
patent: 4732225 (1988-03-01), Jurgens et al.
patent: 4740711 (1988-04-01), Sato et al.
patent: 4816697 (1989-03-01), Nalbandyan et al.

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