Method for reducing or completely stopping the influx of water i

Details Method for reducing or completely stopping the influx of water i Method for reducing or completely stopping the influx of water i

1993-04-12

1994-09-13

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166294, E21B 33138, E21B 4325, E21B 4332

Patent

active

053460138

ABSTRACT:
The present invention relates to a method for reducing or completely stopping the influxes of water of a deposit in at least a portion of a borehole for the extraction of oil and/or hydrocarbon gas, which traverses a deposit, a solution of a polymer being introduced, starting from the borehole, into that portion of the deposit in which the influxes of water are to be reduced or stopped, and the bore subsequently being put into service for the extraction of oil and/or hydrocarbon gas, the fluids present in the deposit coming into contact with said portion of the deposit containing the polymer and the oil and/or hydrocarbon gas flowing through said portion of the deposit and reaching the borehole, wherein the non-aqueous solution of a hydrophobic, water-insoluble polymer is introduced into the deposit and the polymer precipitates in the presence of the connate water of the deposit.

REFERENCES:
patent: 2204223 (1940-06-01), Lawton et al.
patent: 2842206 (1958-07-01), Bearden et al.
patent: 2867278 (1959-01-01), Mallory et al.
patent: 2896717 (1959-07-01), Howard
patent: 3078920 (1963-02-01), Brink et al.
patent: 3251414 (1966-05-01), Willman
patent: 3297088 (1967-01-01), Huitt et al.
patent: 3302717 (1967-02-01), West et al.
patent: 3593794 (1971-07-01), Fischer et al.
patent: 3630280 (1971-12-01), Fischer et al.
patent: 4182417 (1980-01-01), McDonald et al.

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