Wellhead supported subsea templates and methods

Wells – Submerged well – Connection or disconnection of submerged members remotely...

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Details

166366, 175 7, 285315, 285382, 405227, E21B 33038

Patent

active

047067578

ABSTRACT:
Wellhead supported subsea template apparatus and methods of installing such template apparatus are provided. The template apparatus are each comprised of a central support member adapted to be positioned into engagement with an upper portion of an existing wellhead and to be supported thereon above the sea floor. Attached to the template are a plurality of laterally spaced guide slot members, mechanisms for removably connecting the central support member to a running tool, and mechanisms for preventing the support member from rotating on the wellhead after being positioned thereon.

REFERENCES:
patent: 1507991 (1924-09-01), Edwards
patent: 3239248 (1966-03-01), Jones
patent: 3240520 (1966-03-01), Dailey et al.
patent: 3321015 (1967-05-01), Word, Jr.
patent: 3559754 (1971-02-01), Morrill
patent: 3602531 (1971-08-01), Patry
patent: 3618661 (1971-11-01), Peterman
patent: 3934658 (1976-01-01), Nelson
patent: 4180349 (1979-12-01), van Bilderbeek
patent: 4387771 (1983-06-01), Jones
patent: 4497592 (1985-02-01), Lawson
"Offshore Construction--Drillship Sets Three-Well Template", in the Mar. 1978, issue of Ocean Industry Magazine, pp. 51 and 54.

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