Reduced J-tube pull force

Details Reduced J-tube pull force Reduced J-tube pull force

1987-06-16

1988-07-05

Taylor, Dennis L.

Hydraulic and earth engineering

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

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

72 41, 166350367, 405169195, F16L 104

Patent

active

047550813

ABSTRACT:
A method is provided for reducing the force required to pull a pipe through a J-tube riser by coating the pipe and/or the inside of the riser with a fluorocarbon polymer or copolymer.

REFERENCES:
patent: 2602538 (1952-07-01), Bimba et al.
patent: 2670225 (1954-02-01), McKinney
patent: 3356136 (1967-12-01), Haeber
patent: 3551005 (1970-12-01), Brun
patent: 3595312 (1971-07-01), Matthews
patent: 4016736 (1977-04-01), Carrison et al.
patent: 4098091 (1978-07-01), Desai et al.
patent: 4232981 (1980-11-01), Lee
patent: 4380948 (1983-04-01), Loving et al.
patent: 4647255 (1987-03-01), Pow

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