Wells – Processes – Cementing – plugging or consolidating
Patent
1988-01-25
1990-02-06
Kisliuk, Bruce M.
Wells
Processes
Cementing, plugging or consolidating
166208, 166382, 166387, E21B 2300, E21B 3313
Patent
active
048982431
ABSTRACT:
A system for cementing liners in well bores where a liner and drill pipe are made up in telescopic relationship with the lower end of the drill pipe having a polished mandrel or slick pipe slidably and sealingly received in a sealing bore receptacle in the lower end of the liner at a location just above the cementing equipment. When an interconnected setting tool and liner hanger are attached to the drill pipe and liner, a continuous passage is formed by the drill pipe from the setting tool to the location below the sealing bore receptacle. The polished mandrel has an upper normally closed sleeve valve and a lower normally open check valve so that when the liner hanger is located in the well bore, the check valve can be closed for hydraulic operation of the setting tool and opened thereafter for cementing. The sleeve valve is opened at the end of the cementing operation to bypass the interior of the pipe string to the interior of the liner.
REFERENCES:
patent: 2291371 (1942-07-01), Buchanan et al.
patent: 2436525 (1948-02-01), O'Donnell
patent: 3253655 (1966-05-01), Brown
patent: 3910349 (1975-10-01), Brown et al.
patent: 4060131 (1977-11-01), Kenneday et al.
patent: 4096913 (1978-06-01), Kenneday et al.
patent: 4479544 (1984-10-01), Callihan et al.
patent: 4712614 (1987-12-01), Allwin et al.
Cole Paul W.
Lindsey Hiram E.
Kisliuk Bruce M.
Lindsey Completion Systems, Inc.
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