Method for securing a damaged wellhead

Details Method for securing a damaged wellhead Method for securing a damaged wellhead

2008-02-07

2011-12-13

Bomar, Shane (Department: 3676)

Wells

Processes

Assembling well part

C166S277000, C166S085100, C166S075130

Reexamination Certificate

active

08074722

ABSTRACT:
A technique for securing a subsea well that has had some of its components damaged as a result of a storm or other catastrophic event. The techniques utilizes a casing head assembly that may secured to the casing of the damaged well by tightening a plurality of set screws to drive slips into the casing. The casing head assembly may also comprise a tubing hanger. Tubing head set screws may then be tightened to activate the tubing hanger to secure the production tubing to the casing head. The casing head assembly may also comprise a latch-lock connector that may be secured to the casing head by stabbing the latch-lock connector into the casing head and rotating the connector approximately one-quarter turn. A corrosion cap may then be secured to the latch-lock connector to cover the end of the production tubing.

REFERENCES:
patent: 3255823 (1966-06-01), Barton
patent: 4552213 (1985-11-01), Boyd et al.
patent: 4646827 (1987-03-01), Cobb
patent: 5299644 (1994-04-01), Eckert
patent: 5332043 (1994-07-01), Ferguson
patent: 5918675 (1999-07-01), Borak et al.
patent: 7069987 (2006-07-01), Kwasniewski et al.
patent: 7445046 (2008-11-01), Borak, Jr.
patent: 2008/0185156 (2008-08-01), Rodgers et al.

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