Inhibition of Corrosion and Scale Formation in Oilfield Produced Water Recycling System

Jiang Wei Zhang; Gang Li; Yu Liu

doi:10.4028/www.scientific.net/AMR.734-737.2214

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Inhibition of Corrosion and Scale Formation in...

Inhibition of Corrosion and Scale Formation in Oilfield Produced Water Recycling System

Abstract:

Due to the characteristics of the oilfield produced water, there are serious problems of corrosion and scale formation in the water recycling process. A compound inhibitor consists of organophosphine inhibitors and zinc sulfate, was applied to prevent corrosion and scale formation. The corrosion rate and scale inhibition efficiency were studied in artificial supersaturated solutions through weight loss measurements and static jar tests at 95°C, respectively. The results showed that the compound inhibitor had lower corrosion rate (0.021 mm/a) and higher scale inhibition efficiency (97.34 %). The result of industrial pilot test verified the compound inhibitor has an excellent efficiency at oilfield. All results show that the compound inhibitor can solve corrosion and scale formation in oilfield produced water recycling system.