Internal tieback for subsea well

Details Internal tieback for subsea well Internal tieback for subsea well

2011-03-01

2011-03-01

Beach, Thomas A (Department: 3671)

Wells

Submerged well

Connection or disconnection of submerged members remotely...

C166S338000, C166S339000, C166S341000, C166S367000, C166S077100, C285S018000

Reexamination Certificate

active

07896081

ABSTRACT:
A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.

REFERENCES:
patent: 3521909 (1970-07-01), Brown
patent: 4456070 (1984-06-01), Watkins
patent: 4641708 (1987-02-01), Wightman
patent: 4655479 (1987-04-01), Farr, Jr.
patent: 4665979 (1987-05-01), Boehm, Jr.
patent: 4872708 (1989-10-01), Abreo, Jr.
patent: 4903992 (1990-02-01), Jennings et al.
patent: 4976458 (1990-12-01), Hosie et al.
patent: 5080173 (1992-01-01), Brammer
patent: 5211226 (1993-05-01), Hendrickson et al.
patent: 5240076 (1993-08-01), Cromar et al.
patent: 5259459 (1993-11-01), Valka
patent: 5299642 (1994-04-01), Nelson et al.
patent: 5368335 (1994-11-01), Dinnes
patent: 5372201 (1994-12-01), Milberger
patent: 5566761 (1996-10-01), Pallini et al.
patent: 5638903 (1997-06-01), Kent
patent: 5775427 (1998-07-01), Skeels et al.
patent: 6234252 (2001-05-01), Pallini, Jr. et al.
patent: 6260624 (2001-07-01), Pallini et al.
patent: 6293343 (2001-09-01), Pallini, Jr. et al.
patent: 6302211 (2001-10-01), Nelson et al.
patent: 6520263 (2003-02-01), June
patent: 6666272 (2003-12-01), Singeetham et al.
patent: 7156169 (2007-01-01), Bartlett
patent: 7234528 (2007-06-01), Pallini et al.
patent: 7380607 (2008-06-01), Thomas
patent: 7387166 (2008-06-01), Bartlett
patent: 7537057 (2009-05-01), Singeetham et al.
patent: 7735562 (2010-06-01), Bennett et al.
patent: 2001/0045286 (2001-11-01), Pallini et al.
patent: 2255605 (1992-11-01), None
patent: 2272033 (1994-05-01), None
patent: 2302924 (1997-02-01), None
patent: 2362906 (2001-12-01), None
patent: 2424663 (2006-10-01), None

Affiliated with

Also associated with

Rating

Internal tieback for subsea well does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internal tieback for subsea well, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal tieback for subsea well will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2624283