Treatment of subsurface gas-bearing formations to reduce water p

Details Treatment of subsurface gas-bearing formations to reduce water p Treatment of subsurface gas-bearing formations to reduce water p

1979-10-30

1981-07-07

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166294, E21B 33138, E21B 4300

Patent

active

042769353

ABSTRACT:
Excessive water production from a producing gas well is substantially reduced by the injection of a hydrocarbon-diluted water-in-oil emulsion comprising a viscosifying polymer such as polyacrylamide, the injected emulsified polymer swelling on contact with connate water in the subsurface gas producing formation to restrict transfer of water therethrough toward the producing gas well.

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patent: 3343599 (1967-09-01), Eddins, Jr. et al.
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patent: 3721295 (1973-03-01), Bott
patent: 3724547 (1973-04-01), Bott
patent: 3734873 (1973-05-01), Anderson et al.
patent: 3780806 (1973-12-01), Bott
patent: 3893510 (1975-07-01), Elphingstone et al.
patent: 4034809 (1977-07-01), Phillips et al.
patent: 4130165 (1978-12-01), Fast et al.

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