Title:
WELLBORE ESP SYSTEM WITH IMPROVED MAGNETIC GEAR
Document Type and Number:
WIPO Patent Application WO/2014/037753
Kind Code:
A3
Abstract:
An electrical submersible pump system includes at least one electric motor coupled to a mechanism for hanging the pump system in a wellbore. At least one magnetic gear assembly is coupled at its input to an output of the at least one electric motor. A protector assembly is coupled at an input thereof to an output of the at least one magnetic gear assembly. A pump is functionally coupled at its input to a rotational output of the protector assembly. The protector assembly includes a tortuous path assembly having one end of each of a plurality of tortuous paths therein in fluid communication with fluid in the wellbore. The tortuous paths each have another end in fluid communication with dielectric fluid disposed within the protector, the at least one magnetic gear and the at least one electric motor.
Inventors:
MCCANN RICHARD (GB)
SMITH KENNETH (GB)
RUSHBY MICHAEL (GB)
COCHRAN JAMIE (GB)
SMITH KENNETH (GB)
RUSHBY MICHAEL (GB)
COCHRAN JAMIE (GB)
Application Number:
PCT/GB2013/052905
Publication Date:
November 27, 2014
Filing Date:
November 06, 2013
Export Citation:
Assignee:
ZILIFT HOLDINGS LTD (GB)
International Classes:
E21B43/12
Foreign References:
| US20050089419A1 | 2005-04-28 | |||
| GB2396973A | 2004-07-07 | |||
| US6602059B1 | 2003-08-05 | |||
| US20040251019A1 | 2004-12-16 |
Attorney, Agent or Firm:
DOCHERTY, Andrew (Aurora120 Bothwell Street, Glasgow G2 7JS, GB)
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