Wellhead bowl protector and retrieving tool

Details Wellhead bowl protector and retrieving tool Wellhead bowl protector and retrieving tool

1990-03-16

1991-09-03

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 85, 166382, 294 8624, E21B 1712, E21B 2300, E21B 3120

Patent

active

050444387

ABSTRACT:
A wellhead protection system is disclosed including a wear bushing and retrieving tool. The wear bushing is supported in the wellhead and defines an enlarged upper portion for receiving the retrieving tool. The retrieving tool carries at least one retractable lug member for locking engagement with the wear bushing.

REFERENCES:
patent: 1447965 (1923-03-01), Crowell
patent: 3350130 (1967-10-01), Ahlstone et al.
patent: 3473607 (1969-10-01), Castille
patent: 3489214 (1970-01-01), Phipps et al.
patent: 3645328 (1972-02-01), Greene, Jr.
patent: 4361353 (1982-11-01), Vinson
patent: 4591197 (1986-05-01), Akkerman
patent: 4625381 (1986-12-01), Gravouia, Jr. et al.

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