Viscoelastic polymer bank with improved mobility control
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United States of America Patent
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-
Apr 21, 1981
Grant Date -
N/A
app pub date -
Dec 26, 1978
filing date -
Dec 26, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A viscoelastic polymer such as polyacrylamide is first prehydrated in an aqueous fluid having a low degree of hardness and the prehydrated viscoelastic polymer solution is mixed with hard brine to provide a polymer bank with improved mobility control. This improved mobility control is obtained by mixing the hard brine with the prehydrated viscoelastic polymer at high volume ratios of hard brine to the polymer.
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