Flexible production tubing

Details Flexible production tubing Flexible production tubing

1982-02-01

1983-02-22

Marcus, Stephen

Pipes and tubular conduits

Combined

With hose protector

13735526, 138112, 138121, 138162, 138174, 174 47, 239197, 254372, F16L 1108

Patent

active

043745300

ABSTRACT:
Flexible production tubing is wound about a reel for easy and convenient transport to and from a well site. A submersible pump is attached directly to the end of the flexible tubing and is lowered through the well casing to a producing formation. Insertion and withdrawal of the flexible tubing is accomplished with a hydraulically powered drive sprocket assembly mounted above the well head equipment. The flexible tubing is reinforced by striker plate assemblies which are engaged by the teeth of the drive sprocket, thereby providing positive traction for insertion and withdrawal without damaging the flexible core. The flexible production tubing includes a high strength injection core, a tubular production conduit embedded within the core, and a series of striker plate assemblies partially embedded within the core. Each striker plate assembly has a grooved face, with the plates being axially spaced with respect to each other along the length of the core, whereby the grooves of the striker plates are engaged successively by the teeth of the drive sprocket as the tubing is advanced or retracted.

REFERENCES:
patent: 672556 (1901-04-01), Hunick
patent: 2706416 (1955-04-01), Stewart
patent: 2842768 (1958-07-01), Halperin
patent: 3400737 (1968-01-01), Matthews et al.
patent: 3526086 (1970-07-01), Morgan
patent: 3672395 (1972-06-01), Fuetsch
patent: 4194536 (1980-06-01), Stine et al.
patent: 4336415 (1982-06-01), Walling

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