Coiled tubing apparatus

Details Coiled tubing apparatus Coiled tubing apparatus

1978-06-06

1981-05-05

Leppink, James A.

Wells

Above ground apparatus

Moving tubing or cable into an existing well

173 28, 173147, 175 85, E21B 1500, E21B 1908

Patent

active

042653045

ABSTRACT:
Disclosed are coiled tubing apparatus for operating on wells. A tubing injector head is supported on a mast and is moveable to selected elevations along the mast. The mast includes a lower section maintained in upright orientation, and an upper section which is pivotally joined to the lower section. The injector head may be lowered below the pivot point and the mast folded for transportation purposes. A chain drive maneuvers the injector head in one horizontal direction, and a fluid pressure cylinder maneuvers the injector head in a second horizontal direction generally orthogonal to the first. The chain drive is fitted with a worm gear coupling to positively lock the injector head in position. A height-adjustable level wind tubing guide directs the tubing onto or off of a reel. The base of the apparatus is fitted with a track along which a blowout preventer may be moved for subsequent positioning over a well.

REFERENCES:
patent: 2838282 (1958-06-01), Colquitt
patent: 3658270 (1972-04-01), Slator et al.
patent: 3841407 (1974-10-01), Bozeman
patent: 3867989 (1975-02-01), Hisey et al.
patent: 4024925 (1977-05-01), Brown

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