Wells – Processes – Disassembling well part
Patent
1987-06-18
1989-10-31
Dang, Hoang C.
Wells
Processes
Disassembling well part
166 651, 166117, 166242, 166378, 285 2, 2853345, E21B 4700
Patent
active
048770892
ABSTRACT:
Apparatus for coupling wireline tools to coil tubing wherein a pull-out, disconnect, is provided. The pull-out consists of two tubular members with flared, bell-shaped portions, one such portion being coaxially disposed within the other. A ferrule applies pressure to the interface of the surfaces of said flared portions. Sufficient tension on the coil tubing pulls the flared portion of the interior member through the neck and out of the exterior member. Pilot valves prevent intrusion of bore hole fluid into the coupling device during logging and into the coil tubing if a pull-out has been effected.
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Dang Hoang C.
Kane Barry C.
McCollum Patrick H.
Western Atlas International Inc.
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