Whipstock assembly for a sleeved casing

Details Whipstock assembly for a sleeved casing Whipstock assembly for a sleeved casing

1995-01-12

1996-01-16

Novosad, Stephen J.

Wells

Means for guiding insertable element laterally of well axis

166382, 175 79, E21B 708, E21B 2300, E21B 3414

Patent

active

054840171

ABSTRACT:
A casing is provided with a sealable shifting sleeve. A whipstock is insertable into the casing and may be supported off of the casing in a predetermined location so that it is oriented toward an open window in the casing when the shifting sleeve is selectively moved upwardly. By presenting an open window for the whipstock oriented toward the window, a drillbit may be lowered through the casing to interact with the whipstock to immediately begin the drilling of the deviated wellbore. The drillbit cuts through any cement, if present, and into the formation. A bore is presented in the whipstock to allow production from pay zones below the whipstock while it is in place. Should it become necessary, the sliding sleeve may be subsequently closed to isolate the deviated wellbore which has been drilled with the whipstock through the open window.

REFERENCES:
patent: 2506799 (1950-05-01), Livingston
patent: 2978032 (1961-04-01), Hanna
patent: 3215204 (1965-11-01), Sims
patent: 3397746 (1968-08-01), Link
patent: 4397360 (1983-08-01), Schmidt
patent: 4432416 (1984-02-01), Welch et al.
patent: 4640353 (1987-02-01), Schuh
patent: 4726421 (1988-02-01), Akkerman et al.
patent: 4807704 (1989-02-01), Hsu et al.
patent: 4880059 (1989-11-01), Brandell et al.
patent: 4928767 (1990-05-01), Jelsma
patent: 4991654 (1991-02-01), Brandell et al.
patent: 5090481 (1992-02-01), Pleasants et al.
patent: 5115872 (1992-05-01), Brunet et al.
patent: 5154231 (1992-10-01), Bailey et al.
patent: 5156220 (1992-10-01), Forehand et al.
patent: 5335737 (1994-08-01), Baugh
patent: 5341873 (1994-08-01), Carter et al.

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