Spoolable flexible sliding sleeve

Details Spoolable flexible sliding sleeve Spoolable flexible sliding sleeve

1994-09-19

1996-02-06

Dang, Hoang C.

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

E21B 3414

Patent

active

054889928

ABSTRACT:
A coiled tubing completion system is provided with a plurality of completion apparatus, all of which is designed flush with the diameter of the coiled tubing outside diameter for avoiding upsets and are flexible, spoolable on a coiled tubing reel and having through bores large enough to pass wireline tools for performing other operations. The spoolable coiled tubing system may use standard coiled tubing well control equipment and can be used in live wells. The flush, flexible, spoolable and through bore completion equipment may include a tubing retrievable safety valve, an annular control valve, concentric gas lift valves, a zone packer, a landing nipple, a sliding sleeve, and may include at the end a non-flexible but flush and open bore production packer and pump out plug. The completion system may be retrieved through a retrieval system.

REFERENCES:
patent: 4844166 (1989-07-01), Going, III et al.
patent: 4928770 (1990-05-01), Murray
patent: 4928772 (1990-05-01), Hopmann
patent: 5090481 (1992-02-01), Pleasants et al.

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