VMP Casing tieback

Details VMP Casing tieback VMP Casing tieback

1978-10-04

1981-10-06

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Guide and support

285331, 285347, 285361, F16L 3500

Patent

active

042931460

ABSTRACT:
Special J-slot connectors have been devised for connecting concentric riser pipes and casing from a structure at the surface of a body of water to corresponding concentric casings set in the sea floor. This can be called a "tieback tool" for sealingly securing a first tubular member suspended from a vessel floating on a body of water to a casing hung in the wellbore in the bottom of the body of water. Special multiple axially aligned J-slot means are also provided together with means to assure proper "makeup" of the J-slots. Means are also provided for proper alignment of circumferentially spaced J-slot connectors. Special self-emergizing seals are also disclosed.

REFERENCES:
patent: 1083120 (1913-12-01), May
patent: 1130726 (1915-03-01), Greve
patent: 1916449 (1933-07-01), Tompkins
patent: 2015786 (1935-10-01), Carcano
patent: 2327503 (1943-08-01), Coberly
patent: 2698761 (1955-01-01), Claypool et al.
patent: 3211479 (1965-10-01), Brown
patent: 3605414 (1971-09-01), Westmoreland
patent: 3648638 (1972-03-01), Blenkarn

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