Sewage treatment in Cainan oil field

Water flooding and process scheme in Cainan oil field,Zhunggar basin,Xinjiang were introduced.Based on the quality of produced water and the technical standards of re-injected water,the bacteria,oil content,suspension,sulfide,corrosion rate of produced water were investigated.The treatment reagents were tested and screened in the laboratory and the reagents of Sanda Company PAC,JM-300,the reagents of Keli company KL-0308,KL-0305 were used in field application.After treatment the produced water quality met the standards for re-injection.