COAXIAL BOREHOLE HEAT EXCHANGERS AND INSTALLATION THEREOF

Title:

COAXIAL BOREHOLE HEAT EXCHANGERS AND INSTALLATION THEREOF

Document Type and Number:

WIPO Patent Application WO/2015/097229

Kind Code:

A3

Abstract:

A coaxial borehole heat exchanger (58) comprising an outer tubular casing (54) located in a borehole, the outer tubular metal casing comprising a series of tubular sections (50,52), wherein opposed ends of adjacent tubular sections are interconnected by a respective annular weld (56).

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Inventors:

STEWART JAMES JONATHAN (NL)
ARDIS MICHAEL LEWIS (GB)

Application Number:

PCT/EP2014/079185

Publication Date:

October 15, 2015

Filing Date:

December 23, 2014

Export Citation:

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Assignee:

GREENFIELD MASTER IPCO LTD (GB)

International Classes:

F24J3/08; C09K8/42; E21B7/20; E21B33/14

Foreign References:

US20100200192A1	2010-08-12
DE4329269A1	1994-04-14
US20110167819A1	2011-07-14
US4644750A	1987-02-24
DE102005005971B3	2006-03-16
EP0124303A2	1984-11-07
US20070142505A1	2007-06-21
US6702040B1	2004-03-09
US7832220B1	2010-11-16
JP2003130471A	2003-05-08

Attorney, Agent or Firm:

JENKINS, Peter, David (Bedford HouseJohn Street, London WC1N 2BF, GB)

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