Plug assembly for offshore platforms

Details Plug assembly for offshore platforms Plug assembly for offshore platforms

1984-10-22

1985-10-29

Marcus, Stephen

Pipes and tubular conduits

With closures and plugs

Inflation stem type

405203, 405232, E02D 700, E02B 1708

Patent

active

045495807

ABSTRACT:
An improved reusable plug for sealing hollow cylindrical members, in particular, the jacket legs, pile sleeves, pilings, conductor pipes, or other similar members of offshore structures, the improved reusable plug comprising a packer mandrel assembly, packer member, packer setting assembly, dog locking sleeve assembly, pressure equalization plug assembly, and overshot retrieving assembly.

REFERENCES:
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patent: 4142371 (1979-03-01), Mayfield et al.
patent: 4160612 (1979-07-01), Britton et al.
patent: 4178967 (1979-12-01), Streich
patent: 4184515 (1980-01-01), Streich et al.
patent: 4215951 (1980-08-01), Knox
patent: 4249576 (1981-02-01), Streich et al.
patent: 4262702 (1981-04-01), Streich
patent: 4286629 (1981-09-01), Streich et al.
patent: 4292004 (1981-09-01), Knox
patent: 4412559 (1983-11-01), Streich et al.
patent: 4421138 (1983-12-01), Nickles
patent: 4421139 (1983-12-01), Nickles
patent: 4432419 (1984-02-01), Streich

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