Investigation of the Corrosion and Passive Behavior of HP-13Cr Stainless Steel in Formate Annulus Protection Fluid

作     者：Jidong Wang Tengfei Yin Wenlong Qi Xuanpeng Li Yang Zhao Tao Zhang Fuhui Wang Jidong Wang;Tengfei Yin;Wenlong Qi;Xuanpeng Li;Yang Zhao;Tao Zhang;Fuhui Wang

作者机构：Shenyang National Laboratory for Materials ScienceNortheastern UniversityShenyang110819China State Key Laboratory of Performance and Structural Safety for Petroleum Tubular Goods and Equipment MaterialsTubular Goods Research InstituteCNPCXi’an710077China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2024年第37卷第6期

页      面：1087-1103页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Youth Program of the National Natural Science Foundation of China(No.52001061) the Young Elite Scientist Sponsorship Program Cast(No.YESS20200139) the Fundamental Research Funds for the Central Universities(No.N2202016) 

主　　题：HP-13Cr SS Passive behavior Formate annulus protection fluid Isoelectric point 

摘      要：The corrosion and passive behavior of HP-13Cr stainless steel(HP-13Cr SS)in formate annulus protection fluid was ***-13Cr SS exhibited good passive behavior in clean formate annulus protection fluid,which was attributed to a thinner and more dense passive film mainly composed of Cr_(2)O_(3).In the formation water solution,the passive film was composed of metastable Cr(OH)3,which was explained by the isoelectric point theory,resulting in the deterioration of the passive behavior of HP-13Cr *** the formation water penetrated the formate annulus protection fluid,a large number of loose FeCO_(3)particles formed in the corrosion scales,thus HP-13Cr SS suffered severe ***,avoiding formation water penetrating the formate annulus protection fluid is conducive to improving the service life of HP-13Cr SS oil tubes in extremely aggressive environment.