Galvanic anode protection techniques for steel tanks used in the overseas oilfields
YANG Zhao- hui1,2,LI Jian3,HUANG Tao3,YU Hong- jiang4,WANG Liang1,2,LI Xiang- yang3
1. Qingdao Research Institute for Marine Corrosion,Central Iron and Steel Research Institute ,Qingdao 266071,Shandong,China 2. Qingdao NCS Testing and Corrosion Protection Technology Co. ,Ltd. ,Qingdao 266071,Shandong,China 3. Central Iron and Steel Research Institute,China Iron and Steel Research Institute Group,Beijing 100081,China 4. CNPC International MangistauCo. ,Ltd. ,Aktau 130000,Kazakhstan)
Abstract:Through electrochemical test and morphology analysis of the dissolved anode,the component content of the galvanic anode had been optimized. Al- 4. 5%Zn- 0. 025%In- 1. 5%Mg- 0. 05%Ti- 0. 015%Ga was the best component content in the oversea oilfield water with high concentration of salinity and chloride. The influence and mechanism of the alloy elements,which affected the current efficiency of galvanic anode,had been analyzed. Simulation and field experiment both indicated that optimal galvanic anode worked well in the oilfield water with high concentration of salinity and chloride.
杨朝晖,李健,黄涛,于鸿江,王亮,李向阳. 海外油田钢制储罐用牺牲阳极保护技术[J]. 钢铁, 2015, 50(8): 95-99.
YANG Zhao- hui,,LI Jian,HUANG Tao,YU Hong- jiang,WANG Liang,,LI Xiang- yang. Galvanic anode protection techniques for steel tanks used in the overseas oilfields. Iron and Steel, 2015, 50(8): 95-99.
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