Pipe joints or couplings – Serial,relatively movable portions – Having telescoping portion
Patent
1994-06-28
1995-09-26
Nicholson, Eric K.
Pipe joints or couplings
Serial,relatively movable portions
Having telescoping portion
285330, 166378, 166 775, 166382, 175423, F21B 2300, F16L 2106
Patent
active
054529239
ABSTRACT:
There is described a method and apparatus for connecting the end of coiled tubing to a downhole tool string, comprising a first tubular housing having a first uphole and a second downhole end and a bore formed therethrough for a length of coiled tubing, a second tubular housing adapted for releasable connection to the downhole end of the first housing, the second housing having a first uphole and a second downhole end and a bore formed therethrough for receiving the length of coiled tubing at least partially into the second housing, slips adapted to at least partially surround the coiled tubing and having on an inner surface thereof raised projections for penetrating a contiguous surface of the coiled tubing for connection thereto, the slips additionally including connectors to interlock with cooperating connectors on the second housing for a non-rotatable torque transmitting connection therebetween, and a force transmitting member disposed between the slips and the first housing to maintain the slips in compressive contact with the coiled tubing.
REFERENCES:
patent: 1637055 (1927-07-01), Segelhorst
patent: 2017451 (1935-07-01), Wickersham
patent: 2864450 (1958-12-01), Burns
patent: 3216503 (1965-11-01), Fisher, Jr. et al.
patent: 4646827 (1987-03-01), Cubb
patent: 4711326 (1987-12-01), Baugh et al.
patent: 5174397 (1992-12-01), Currington
patent: 5215151 (1993-06-01), Smith et al.
patent: 5306050 (1994-04-01), Laflin et al.
patent: 5348088 (1994-09-01), Laflin et al.
Canadian Fracmaster Ltd.
Nicholson Eric K.
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