H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 3/44 (2006.01) F04D 13/10 (2006.01)
Patent
CA 2546983
An electric motor, for powering downhole tools, comprises a stator and a rotor connectable to a rotatable device, a permanent magnet and a series of coiled windings or laminations having a connection to a DC supply, the permanent magnet and the laminations being arranged annularly with respect to each other, characterised in that the laminations and coil windings are potted in a potting material impervious to wellbore fluids. The potting material are introduced under a vacuum, and the motor housing confines the potting material, acting as a mould.
L'invention concerne un moteur électrique destiné à alimenter des outils fond de trou, qui comprend un stator et un rotor pouvant se connecter à un dispositif tournant, un aimant permanent et une série d'enroulements spiralés ou de feuilles ayant une connexion à une alimentation CC, l'aimant permanent et les feuilles étant disposés de manière annulaire les uns par rapport aux autres. Les feuilles et les enroulements spiralés sont encapsulés dans un matériau d'enrobage imperméable aux fluides de forage. Le matériau d'enrobage est introduit sous vide, et le logement du moteur confine ledit matériau d'enrobage, agissant comme un moule.
Artificial Lift Company Limited
Gowling Lafleur Henderson Llp
LandOfFree
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