Split casing block-off for gas or water in oil drilling

Details Split casing block-off for gas or water in oil drilling Split casing block-off for gas or water in oil drilling

1983-04-27

1985-02-26

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

138;98X, 166277, 166387, E21B 4310

Patent

active

045013276

ABSTRACT:
A method for sealing the wall of a bore hole comprises forming a liner of resilient sheet material into a substantially cylindrical or scroll configuration having a diameter smaller than that of the hole, inserting the liner into the hole, allowing the liner to expand to substantially the diameter of the hole, and pressing the liner against the wall of the bore hole. Apparatus for performing the method comprises an elongated member having a first end insertable into the bore hole, means associated therewith for supporting a liner within the hole, and rotary means for pressing the liner into contact with the wall of the hole. A liner in accordance with the present invention comprises a resilient sheet pressed against the wall of the bore hole, and a layer of mud and cement interposed between the sheet and the wall.

REFERENCES:
patent: 341327 (1886-05-01), Fay
patent: 958517 (1910-05-01), Mettler
patent: 2214226 (1940-09-01), English
patent: 2245712 (1941-06-01), Ragan
patent: 2556672 (1951-06-01), Bergh et al.
patent: 2575938 (1951-11-01), Benneke
patent: 3000443 (1961-09-01), Thompson
patent: 3167122 (1965-01-01), Lang
patent: 3191677 (1965-06-01), Kinley
patent: 3354955 (1967-11-01), Berry
patent: 3557876 (1971-01-01), Tragesser
patent: 3948321 (1976-04-01), Owen et al.
patent: 4109684 (1978-08-01), Fernandez
patent: 4155404 (1979-05-01), Hollingsworth

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