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Patent Searching and Data


Title:
DOWNHOLE ASSEMBLY WITH MAGNETIC GEARBOX
Document Type and Number:
WIPO Patent Application WO/2012/143807
Kind Code:
A3
Abstract:
A magnetic change speed gearbox 16 is described for use in a downhole assemblies having a higher speed shaft supported by a gas bearing. The downhole assembly may be one comprising a motor 14 driving a compressor 12 by way of a step-up magnetic gearbox 16 or one comprising a gas turbine driving a pump by way of a step-down magnetic gearbox.

Inventors:
ALFORD ADRIAN (GB)
REED JULIAN (GB)
SHIP KAR (GB)
Application Number:
PCT/IB2012/051568
Publication Date:
July 11, 2013
Filing Date:
March 30, 2012
Export Citation:
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Assignee:
CORAC ENERGY TECHNOLOGIES LTD (GB)
ALFORD ADRIAN (GB)
REED JULIAN (GB)
SHIP KAR (GB)
International Classes:
H02K49/00; E21B4/00; E21B43/12; F04D25/06; H02K7/08; H02K7/09; H02K49/10
Domestic Patent References:
WO2007064591A22007-06-07
Foreign References:
US20040051413A12004-03-18
GB2384274A2003-07-23
US20030132003A12003-07-17
Attorney, Agent or Firm:
COZENS, Paul Dennis et al. (120 Holborn, London EC1N 2SQ, GB)
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