BEHANDLUNGSMITTEL AUF DER GRUNDLAGE VON NIEDERMOLEKULAREN POLYVINYLSULFONATEN ZUR KONTROLLE DER BARIUMSULFAT-ABLAGERUNG BEI NIEDRIGEM PH UND VERFAHREN ZUR VERHINDERUNG DER BILDUNG VON BARIUMSULFATABLAGERUNGEN BEI DER GEWINNUNG VON ERDOEL AUS UNTERIRDISCHEN FORMATIONEN
A method of preventing the formation of barium sulfate scale deposited by aqueous produced or injection fluids having a pH below 7.5 which are recovered with or are used to recover petroleum from underground formations which comprises treating these aqueous fluids with a low molecular weight polyvin...
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Zusammenfassung: | A method of preventing the formation of barium sulfate scale deposited by aqueous produced or injection fluids having a pH below 7.5 which are recovered with or are used to recover petroleum from underground formations which comprises treating these aqueous fluids with a low molecular weight polyvinyl sulfonate which has a molecular weight within the range of between 500-10,000. |
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