Centraliser

Details Centraliser Centraliser

2008-05-27

2008-05-27

Thompson, Kenneth (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S241600

Reexamination Certificate

active

07377325

ABSTRACT:
There is disclosed an expandable centraliser for locating a body within a borehole, and a method of centralising tubing in a borehole.In an embodiment of the invention, an expandable centraliser (10) is disclosed, the centraliser (10) comprising a deformable body (12), and at least one abutment portion in the form of a shoulder (14) on the body (12), the shoulder (14) adapted to be urged radially outwardly on deformation of the body (12), to centralise tubing (28) coupled to the centraliser (10) within a borehole (15).

REFERENCES:
patent: 2228649 (1941-01-01), Welles
patent: 3312285 (1967-04-01), Solum
patent: 3379258 (1968-04-01), Turbyfill
patent: 6725939 (2004-04-01), Richard
patent: 2148985 (1985-06-01), None
patent: 2405430 (2005-03-01), None
patent: WO 97/17524 (1997-05-01), None
patent: WO 00/37766 (2000-06-01), None
patent: WO 01/98623 (2001-12-01), None
patent: WO 03/006789 (2003-01-01), None
patent: WO 03/012246 (2003-02-01), None
patent: WO 03/078789 (2003-09-01), None
GB Search Report dated Nov. 3, 2003 from GB Application No. 0315144.6.
U.K. Search Report, Application No. GB0414033.1, dated Aug. 12, 2004.
GB Search Report, Application No. 0414033.1, dated Jul. 11, 2006.

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