J-tube seal

Details J-tube seal J-tube seal

1998-05-22

1999-12-21

Knight, Anthony

Seal for a joint or juncture

Seal for well apparatus

Installation, removal, assembly, disassembly, or repair feature

277316, 277605, 277609, 277627, 405169, F16L 502

Patent

active

06003873&

ABSTRACT:
The present invention relates to a method and device for sealing the entrance of an elongated element (1) into the lower end of an offshore tube (8), --including the steps of arranging a plug-like device (2) on the element, --pulling a predetermined length of the element into the tube, --and fixing the plug on the element surface at the bellmouth entrance (7) of the tube, the outer diameter of the plug being somewhat smaller than the inner diameter of the tube. Expandable foam is injected to a space (11,12) between the outer surface of the plug (2) and the inner surface of the tube (8), --in order to substantially fill said space.
The foam is supplied to the space (11,12) from at least one foam container (15) placed inside the plug, --via ducts (13,14) within the plug. The foam container (15) is operated from a drive gas cartridge (16) also arranged within the plug (2) and is operable by an ROV.

REFERENCES:
patent: 50194 (1865-09-01), Wilder
patent: 4268041 (1981-05-01), Sovish
patent: 4332975 (1982-06-01), Dienes
patent: 4622436 (1986-11-01), Kinnan
patent: 5118454 (1992-06-01), Preston
patent: 5564716 (1996-10-01), Onoue

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