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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Zusammenfassung: | 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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