Wells – Processes – Placing or shifting well part
Patent
1997-05-23
1998-11-24
Suchfield, George
Wells
Processes
Placing or shifting well part
166 772, 166 855, 2423991, 2425963, 254288, 254332, 254333, E21B 1922
Patent
active
058395148
ABSTRACT:
An improved apparatus and method for injecting and retrieving a length of coiled tubing and storing the tubing on a storage spool. An injector reel is pivotally mounted on a frame such that coiled tubing may be angularly injected to shallow, horizontal wells. A hold-down assembly is provided to individually adjust the pressure applied to the coiled tubing as it is injected into or retrieved from a well. The positioning of the injector reel and the storage spool in the injecting mode ensures a greater degree of wrapping of the coiled tubing around the injector reel to improve the control of the injection and retraction of the tubing. A vertically and horizontally adjustable storage spool cradle enables the operator to vary the width and diameter of the storage spools used in the apparatus.
REFERENCES:
patent: 3116793 (1964-01-01), McStravick
patent: 3841407 (1974-10-01), Bozeman
patent: 4249600 (1981-02-01), Bailey
patent: 4553590 (1985-11-01), Phillips
patent: 4673035 (1987-06-01), Gipson
patent: 5439066 (1995-08-01), Gipson
patent: 5660235 (1997-08-01), Sola
patent: 5765643 (1998-06-01), Shaaban et al.
Fleet Cementers, Inc.
Suchfield George
LandOfFree
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