Internal pipeline plug for deep subsea operations

Details Internal pipeline plug for deep subsea operations Internal pipeline plug for deep subsea operations

1983-02-02

1985-01-15

Corbin, David H.

Hydraulic and earth engineering

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

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

405171, F16L 104

Patent

active

044935897

ABSTRACT:
Pressure-tight pipeline plugs are used in subsea connection operations to achieve a lightweight pipe condition which facilitates alignment by easing handling problems. An internal plug is provided for this purpose which is particularly useful for connection operations using a pipelay vessel, and which is capable of sealing, remotely releasing and then being pumped out of the line to a terminus.

REFERENCES:
patent: 3136133 (1964-06-01), Perret
patent: 3931670 (1976-01-01), Arnold
patent: 4360290 (1982-11-01), Ward

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