Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1991-01-29
1992-02-25
Nicholson, Eric K.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285338, 285348, 166 82, F16L 3500
Patent
active
050907379
ABSTRACT:
A telescoping joint for connecting casing between a subsea housing and a surface wellhead can be reenergized. The telescoping joint includes an upper conduit section and a lower conduit section that telescopingly insert within one another. A seal locates in an annular space between the two conduit sections. A torque nut secures between the upper and lower conduit sections. The torque nut bears against the seal. The torque nut has a slot in its bore that is engaged by a running tool lowered from a drilling vessel at the surface. The running tool rotates the torque nut to energize the seal. A ratcheting lock ring locks the telescoping joint against withdrawing movement.
REFERENCES:
patent: Re23748 (1953-12-01), Barber
patent: 1427318 (1922-08-01), Payne
patent: 2546348 (1951-03-01), Schuman
patent: 2633201 (1953-03-01), Clark
patent: 3343796 (1967-09-01), Trickey
patent: 3353847 (1967-11-01), Brown
patent: 3432175 (1969-03-01), Kawai
patent: 3797864 (1974-03-01), Hynes et al.
patent: 3958819 (1976-05-01), Tifft
patent: 4343495 (1982-08-01), Nobileau et al.
patent: 4362210 (1982-12-01), Green
patent: 4505499 (1985-03-01), Uglow et al.
patent: 4911480 (1990-03-01), Bridges et al.
patent: 4995464 (1991-02-01), Watkins et al.
Brammer Norman
Nobileau Philippe C.
ABB Vetco Gray Inc.
Bradley James E.
Nicholson Eric K.
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