Method of sealing contaminated wells

Details Method of sealing contaminated wells Method of sealing contaminated wells

1990-09-17

1991-09-24

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166387, 175402, E03B 312

Patent

active

050506790

ABSTRACT:
A method for sealing a well to prevent ground water contamination in which the existing perforate casing is at least temporarily intermally capped. Thereafter, a new imporforate casing is palaced about a portion of the length of the existing casing extending to a predetermined depth. Sealant is injected between the casings to seal-off at least a portion of the existing casing. If the well is to be activated, a collar, pump and access piping are installed.

REFERENCES:
patent: 1153811 (1915-09-01), Montgomery
patent: 1269090 (1918-06-01), Kistler
patent: 2173033 (1939-09-01), Armentrout et al.
patent: 2349181 (1944-05-01), Lerch et al.
patent: 3013608 (1961-12-01), Church
patent: 4675441 (1987-04-01), Horvath
patent: 4687060 (1987-08-01), Richards et al.

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