Method of controlling iron in produced oilfield waters

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 5/12 (2006.01) C09K 8/528 (2006.01)

Patent

CA 2100297

ABSTRACT The present invention provides a process for stabilizing iron oxides and iron hydroxides in produced oil field waters. A water soluble polymer containing pendant N-substituted amide functionality units is added at a rate of about 6 parts by weight polymer to 10 parts by weight iron in the produced water.

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