Title:
APPARATUS FOR SETTING A LINER IN A WELL CASING
Document Type and Number:
WIPO Patent Application WO1997025518
Kind Code:
A3
Abstract:
An apparatus for setting a liner (1) in a casing (2) comprises a liner hanger (LH) and a running tool (100). The running tool (100) is provided with a valve seat (5) obstruction of which, in use, allows fluid pressure to be developed to set the liner hanger (LH) in the well casing (2). After the liner hanger (LH) has been set, the application of further pressure will displace the valve seat (5) to release (or at least enable) the running tool (100) to be released and to allow fluid flow through the running tool (100).
Inventors:
GUDMESTAD TARALD (NO)
DYBEVIK ARTHUR HRRMAN (NO)
KVERNSTEUN OLE SVEINUNG (NO)
DYBEVIK ARTHUR HRRMAN (NO)
KVERNSTEUN OLE SVEINUNG (NO)
Application Number:
PCT/GB1997/000014
Publication Date:
September 13, 2001
Filing Date:
January 03, 1997
Export Citation:
Assignee:
WEATHERFORD LAMB (US)
GUDMESTAD TARALD (NO)
DYBEVIK ARTHUR HRRMAN (NO)
KVERNSTEUN OLE SVEINUNG (NO)
GUDMESTAD TARALD (NO)
DYBEVIK ARTHUR HRRMAN (NO)
KVERNSTEUN OLE SVEINUNG (NO)
International Classes:
E21B17/06; E21B23/00; E21B23/04; E21B23/06; E21B41/00; E21B43/10; (IPC1-7): E21B43/10; E21B23/04; E21B17/06; E21B41/00; E21B23/00
Foreign References:
| US2315931A | 1943-04-06 | |||
| US2994381A | 1961-08-01 | |||
| US2409811A | 1946-10-22 | |||
| US3845819A | 1974-11-05 | |||
| US4712614A | 1987-12-15 | |||
| US4911237A | 1990-03-27 | |||
| US4311194A | 1982-01-19 |
Other References:
See also references of EP 0871817A1
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