Process for reducing polymer plugging during polymer injection i

Details Process for reducing polymer plugging during polymer injection i Process for reducing polymer plugging during polymer injection i

1985-04-17

1987-05-05

Guynn, Herbert B.

Wells

Processes

Distinct, separate injection and producing wells

252 8554, E21B 4322

Patent

active

046624449

ABSTRACT:
Disclosed is a method of treating the wellbore area of an injection well to minimize polymer plugging around the wellbore during polymer injection. The treatment can be achieved by the injection of a dilute organic cation solution to the wellbore prior to the polymer injection and additionally having the cation present during the polymer injection. Data are shown that replacement of calcium, magnesium and sodium ions by the organic cation substantially reduce plugging.

REFERENCES:
patent: 2761835 (1956-09-01), Brown
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 3830302 (1974-08-01), Dreher et al.
patent: 4409110 (1983-10-01), Borchardt et al.
patent: 4479894 (1984-10-01), Chen et al.

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