Marine wellhead structure

Details Marine wellhead structure Marine wellhead structure

1985-07-03

1987-03-24

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166368, 166217, 185 18, 185141, F21B 33043

Patent

active

046518304

ABSTRACT:
The present invention relates to an improved subsea wellhead structure which includes a conductor casing having an internal upwardly facing shoulder, and an internal groove above the shoulder, an external groove, a wellhead housing having an external downwardly facing shoulder adapted to seat on the casing shoulder, an external shoulder above the seat shoulder which tapers upwardly and outwardly at a slight angle, such as, for example, five degrees, a split latching and loading ring surrounding said housing and seated on said tapered external shoulder, a cam ring above the split ring, means for releasably retaining the cam ring in its inactive position and actuating means for moving the cam ring into position wedging the split ring outwardly on the tapered shoulder into tight load transmitting position within the internal casing groove and the tapered shoulder. This loading of split ring 50 and shoulders 42 and 32 of housing 40 and conductor casing 28 cause cyclic external loads on the upper portion of wellhead housing to be transferred into conductor casing and to insulate the smaller casings from such loading.

REFERENCES:
patent: 3704033 (1972-11-01), Arnold
patent: 4012059 (1977-03-01), Luke et al.
patent: 4216835 (1980-08-01), Nelson
patent: 4408783 (1983-10-01), Gruller
patent: 4441740 (1984-04-01), Cowan et al.

Affiliated with

Also associated with

Rating

Marine wellhead structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1348287