Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Reexamination Certificate
2006-11-07
2006-11-07
Wong, Albert K. (Department: 2612)
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through well fluids
C322S051000, C290S052000, C175S048000, C310S015000
Reexamination Certificate
active
07133325
ABSTRACT:
An apparatus and related method generate electrical power in a tubular housing, such as a drill collar, disposed in a borehole when drilling fluid flows through the tubular housing. The apparatus includes a stator adapted for being secured within the tubular housing against rotation relative to the tubular housing, a tubular rotor rotatably carried about the stator, and an impeller peripherally affixed to the rotor. The stator has an array of conductive windings therein, and is preferably an alternator stator. The rotor has an array of magnets therein, and is preferably an alternator rotor. Accordingly, drilling fluid flowing through the tubular housing when the apparatus is disposed therein engages the impeller and induces rotation of the rotor about the stator to generate electrical power.
REFERENCES:
patent: 4805407 (1989-02-01), Buchanan
patent: 4847815 (1989-07-01), Malone
patent: 5248896 (1993-09-01), Forrest
patent: 5265682 (1993-11-01), Russell et al.
patent: 5517464 (1996-05-01), Lerner et al.
patent: 5586083 (1996-12-01), Chin et al.
patent: 5626200 (1997-05-01), Gilbert et al.
patent: 5636178 (1997-06-01), Ritter
patent: 5793625 (1998-08-01), Balogh
patent: 5946202 (1999-08-01), Balogh
patent: 5969297 (1999-10-01), Ambs
patent: 6219301 (2001-04-01), Moriarty
patent: 6233524 (2001-05-01), Harrell et al.
patent: 6495929 (2002-12-01), Bosley et al.
patent: 6607030 (2003-08-01), Bauer et al.
patent: 7002261 (2006-02-01), Cousins
patent: 2004/0140726 (2004-07-01), Spring
patent: 2004/0144570 (2004-07-01), Spring
patent: 2005/0012340 (2005-01-01), Cousins
patent: 2 397 078 (2004-07-01), None
patent: WO 02/091553 (2002-11-01), None
patent: WO 02/091554 (2002-11-01), None
patent: WO 2004/062081 (2004-07-01), None
Hache Jean-Michel
Kotsonis Spyro J.
Orban Jacques
Gaudier Dale V.
Salazar Jennie
Schlumberger Technology Corporation
Segura Victor H.
Wong Albert K.
LandOfFree
Apparatus and method for generating electrical power in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for generating electrical power in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for generating electrical power in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3661352