THERMALLY STABLE MOBILITY CONTROL REAGENTS FOR HARSH ENVIRONMENT RESERVOIRS

Polymers of 2-acrylamido-2-methylpropane sulfonic acid or its salts are used to maintain the viscosity of aqueous solutions thereof in the presence of divalent salt containing-waters during the enhanced recovery of petroleum from sub-terranean petroleum-bearing deposits.

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Bibliographische Detailangaben
Hauptverfasser: RYLES, RODERICK G, ROBUSTELLI, ALBERT G
Format: Patent
Sprache:eng
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