Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1985-08-01
1987-02-10
Taylor, Dennis E.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
166343, 166338, E21B 4301
Patent
active
046419985
ABSTRACT:
A system for aligning and securing the end of a subsea flowline to a subsea wellhead and guide base system associated with an oil or gas completion system which provides for the manipulation of the centerline of pins on the subsea flowline end connection attachment, the centerline of receptacles on the flowline receiving structure, and a centerline on pulling tool guidance means to a concurrent location such that the pins can engage the receptacles and thereby the flowline end can be positively locked into the flowline receiving structure at varying vertical rotational positions of the end of the flowline and subsequently when a desired vertical rotational position or elevation of the flowlines is achieved other pins will engage other receptacles and lock the flowline end attachment and therefore the flowlines against further vertical movement.
REFERENCES:
patent: 3886667 (1975-02-01), Baugh
patent: 3924446 (1975-12-01), Baugh
patent: 3968838 (1976-07-01), Baugh
patent: 3973625 (1976-08-01), Baugh
patent: 4004635 (1977-01-01), Marquaire et al.
patent: 4371291 (1983-02-01), Morrill et al.
"A Guideliness Tree and Flowline Connections Systems for Deepwater Production" by H. O. Henderson, paper No. 4251 at the Offshore Technology Conference.
"Deepwater Guildelineless Completion Systems: A review of the State of the Art" by Benton F. Baugh, presented at the Drilling and Production Symposium of the 1985 Energy-Sources Technology Conference and Exhibition.
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