Underwater well apparatus

Details Underwater well apparatus Underwater well apparatus

1978-06-05

1979-10-02

Leppink, James A.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

285 3, 285 18, 285315, E21B 4301, F16L 3500

Patent

active

041695070

ABSTRACT:
There is disclosed a riser pipe having telescoping sections which are held in retracted position by a part which is adapted to sever upon application of a predetermined tensile load, and a fluid-actuated connector at its lower end which is adapted to be released from connection with a blowout preventer stack at the upper end of an underwater wellhead automatically in response to extension of said sections upon severance of said part.

REFERENCES:
patent: 3137348 (1964-06-01), Ahlstone et al.
patent: 3189098 (1965-06-01), Haeber
patent: 3325190 (1967-06-01), Eckert et al.
patent: 3332484 (1967-07-01), Watkins
patent: 3492027 (1970-01-01), Herring
patent: 3675713 (1972-07-01), Watkins
patent: 3688840 (1972-09-01), Curington et al.
patent: 3841665 (1974-10-01), Capot
patent: 3851897 (1974-12-01), Piazza

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