Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Patent
1980-12-01
1983-06-21
Novosad, Stephen J.
Wells
Conduit wall or specific conduit end structure
Downhole coupling or connector
174 47, 166 65R, 166385, E21B 1700
Patent
active
043889697
ABSTRACT:
A side entry apparatus for use in a drill string permits a wireline to be connected with tool apparatus within the pipe and passed to the exterior of the pipe intermediate the ends of the drill string so that sections of pipe may be added to the drill string without interrupting the connection and resulting communication between the wireline and tool apparatus to which it is connected. The side entry apparatus includes a housing having an opening through the wall of the housing. A sealing element is arranged to be positioned about the wireline, between the wireline and the opening. A jacking mechanism is used to compress the sealing element and thereby move it into sealing contact about the wireline. A piston like member acts against the interior side of the sealing element and due to a differential pressure existing across the interior and exterior of the pipe string, moves against the sealing element to compress the sealing element against a retainer held in position by the jack mechanism, to expand the sealing element into further sealing contact with the wireline. The elements of the apparatus forming the sealing function are arranged to be assembled over the wireline after the wireline is passed through the side entry opening in the housing wall. This provides means to carry out a method of passing the wireline through the side entry opening without causing excessive wear on the line due to frictional and abrasive engagement with elements of the apparatus.
REFERENCES:
patent: 2616731 (1952-11-01), Osmun
patent: 2690713 (1950-10-01), Urmann et al.
patent: 3196948 (1965-07-01), Dye
patent: 4200297 (1980-04-01), Tricon
Marshall Gailen
Myska C. H.
Smith Kenneth E.
Falk Joseph
Murrah M. Lee
NL Industries Inc.
Novosad Stephen J.
Traut Donald L.
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