Adjustable tieback sub

Details Adjustable tieback sub Adjustable tieback sub

1994-08-23

1995-09-19

Britts, Ramon S.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166367, 166378, 166381, E21B 33038

Patent

active

054509041

ABSTRACT:
A method of tensioning casing between a subsea well and a surface wellhead employs an adjustment sub. The adjustment sub has upper and lower portions connected together by a threaded section. The running tool locates within the adjacent sub and is employed to secure the lower end of the casing to a tieback latch within the subsea housing. Continued rotation shears out a lower portion of the running tool, causing the threaded section to rotate relative to at least one of the other portions. Rotation of the threaded section brings a hanger on the upper sub portion downward into engagement with a load shoulder in the surface housing.

REFERENCES:
patent: 4258792 (1981-03-01), Restarick
patent: 4408783 (1983-10-01), Gruller
patent: 4466487 (1984-08-01), Taylor, Jr.
patent: 4607865 (1986-08-01), Hughes
patent: 4653589 (1987-03-01), Alandy
patent: 4681166 (1987-07-01), Cuiper
patent: 4794988 (1989-01-01), Van Bilderbeek
patent: 4846508 (1989-07-01), Pallini, Jr. et al.
patent: 4909546 (1990-03-01), Nobileau
patent: 4938289 (1990-07-01), Van Bilderbeek
patent: 4995464 (1991-02-01), Watkins et al.
patent: 5002131 (1991-03-01), Cromar et al.
patent: 5127478 (1992-07-01), Miller
patent: 5181570 (1993-01-01), Allwin et al.
patent: 5249629 (1993-10-01), Jennings
patent: 5255746 (1993-10-01), Bridges
patent: 5261493 (1993-11-01), Brammer
patent: 5311947 (1994-05-01), Kent et al.
"Adjustment Sub", Dril-Quip, Technology for the 90's (4 pages).

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1823129