Spoolable flexible hydraulic controlled annular control valve

Details Spoolable flexible hydraulic controlled annular control valve Spoolable flexible hydraulic controlled annular control valve

1994-07-21

1995-11-14

Dang, Hoang C.

Wells

Valves, closures or changeable restrictors

Fluid operated

E21B 3410

Patent

active

054657938

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: 3313350 (1967-04-01), Page, Jr.
patent: 3587735 (1971-06-01), Owen
patent: 4460040 (1984-07-01), Bowyer
patent: 4844166 (1989-07-01), Going, III et al.
patent: 5318127 (1994-06-01), Hines et al.
patent: 5377749 (1995-01-01), Barbee

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