External tie-back connector

Details External tie-back connector External tie-back connector

1986-08-18

1987-10-13

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166359, 285317, E21B 712, E21B 33043

Patent

active

046992154

ABSTRACT:
An apparatus for connecting a riser to a wellhead housing for a tie-back connection allows connection without rotation or hydraulic actuation. A connector body is mounted to the lower end of the riser for lowering over the wellhead housing. Dogs are carried in the connector body, each having grooves on its interior for mating with grooves formed on the wellhead housing. Guide surfaces in the connector body allow the dogs to retract and extend, but only in directions perpendicular to the upper flanks of the wellhead housing grooves. Springs urge the dogs inwardly and downwardly to lock the connector body to the wellhead housing. A release mechanism allows the connector body to be pulled upwardly and removed from the wellhead housing.

REFERENCES:
patent: 3228715 (1966-01-01), Neilson et al.
patent: 3321217 (1967-05-01), Ahlstone
patent: 3334924 (1967-08-01), Todd
patent: 3521909 (1970-07-01), Brown
patent: 3543847 (1970-12-01), Haeber
patent: 4093030 (1978-06-01), Bonds
patent: 4433859 (1984-02-01), Driver et al.

Affiliated with

Also associated with

Rating

External tie-back connector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with External tie-back connector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External tie-back connector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-406262