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Test and Study on Regional Cathodic Protection in Cluster Well

Wang Weijin,Li Fengquan,Guo Xiuyan(Jilin Petroleum Group Co.Survey and Design Institute.Songyuan,Jilin,138001,China) Zhang Qiang(Talimu Oil Field Branch Co.Kuerle,Xinjiang,841000,China)  
There is ripe experience on regional cathodic protection in straight well at home and abroad,but no on deflecting well.In practical engineering design,we find that it is easy to manage and large cost can be saved if anode is buried at wellhead.
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