Wells – Expansible anchor or casing – Liner hanger
Patent
1993-01-14
1994-08-16
Neuder, William P.
Wells
Expansible anchor or casing
Liner hanger
2483121, E21B 5304
Patent
active
053378091
ABSTRACT:
A suspension hanger for suspending liner pipe inside a well casing for purposes of relining or repair is disclosed having a top annular member to mount on the output end of the casing and a bottom annular member for seating a string of liner pipe. The bottom member is suspended from the top member by suspension strips. The length of the devise and therefore the depth of suspension of the liner pipe can be varied by adding or deleting suspensions strips.
REFERENCES:
patent: 4014506 (1977-03-01), Hanson
patent: 4418883 (1983-12-01), Cohen
patent: 5058839 (1991-10-01), Stevens
Denk Paul M.
Neuder William P.
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