Method and apparatus for replacing a packer element

Details Method and apparatus for replacing a packer element Method and apparatus for replacing a packer element

1998-09-15

2000-01-11

Douglas, Steven O.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166 854, 166377, 251 13, E21B 712

Patent

active

060125284

ABSTRACT:
A method and a device for replacing a seal element in an undersea blowout preventer is provided. A complete system includes a control center on the surface, an umbilical from the control center to a remotely operated vehicle (ROV), and a seal element carrier manipulated by the ROV. The carrier includes either a retrieving tool or a running tool, which retains a cartridge which is to be inserted into or has been retrieved from a BOP. The cartridge is split along a vertical plane, with each half of the cartridge becoming a temporarily integral part of a pipe ram on either side of the BOP. Alignment ramps on the cartridge mate with complementary surfaces on the respective faces of the pipe rams. The retrieving tool preferably includes means for hydraulically actuating the retrieving tool with pressure through the umbilical, such as coiled tubing.

REFERENCES:
patent: 3614111 (1971-10-01), Regan
patent: 3741296 (1973-06-01), Murman et al.
patent: 4007905 (1977-02-01), Mott
patent: 4715445 (1987-12-01), Smith, Jr.
patent: 5040598 (1991-08-01), Pleasants
patent: 5590867 (1997-01-01), Van Winkle

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