Subsea pipeline method and apparatus

Details Subsea pipeline method and apparatus Subsea pipeline method and apparatus

1988-02-23

1991-01-22

Corbin, David H.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

29523, 72 61, F16L 126

Patent

active

049866982

ABSTRACT:
An improved method and apparatus for repairing a subsea pipeline. The improved apparatus includes a forming tool having a body, a resilient sleeve surrounding the body, means for delivering fluid under pressure through the body to the interior of the resilient sleeve, a frame, an arm connected to the body of the forming tool and connected to a pressure responsive actuator supported from said frame to extend and retract the forming tool, a collet connector supported from said forming tool, a forming sleeve, the frame having means for supporting itself on the sea bottom, said collet connector being initially connected to said forming sleeve, means for controlling the supply of fluid under pressure to opposite sides of said actuator, means for injecting a fluid from said body into the space within said annular connecting means, and means on said frame for connecting lines thereto.

REFERENCES:
patent: 3432916 (1969-03-01), Fisher et al.
patent: 4155669 (1979-05-01), Rochelle
patent: 4159189 (1979-06-01), Todd et al.
patent: 4388752 (1983-06-01), Vinciguerra et al.
patent: 4648626 (1987-03-01), Vinciguerra et al.
patent: 4662663 (1987-05-01), Schmitz
patent: 4805430 (1989-02-01), Schmitz et al.

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