Correlation between electrochemical properties and stress corrosion cracking of super 13Cr under an HTHP CO₂ environment

Abstract

The degradation of a surface film induces pitting corrosion, which further increases SCC susceptibility.

Evolution and characterization of the film formed on super 13Cr stainless steel in CO2-saturated formation water at high temperature

“…Observation of Cr(OH)3 has been reported by Yue et al [16], who worked with super 13Cr in CO2-saturated water at temperature ranges of 120°C and 150°C. We reported that the amorphous Cr(OH)3 can be detected by using XPS at the surface, agreeing with the observations here.…”

“…From previous research, it has been found that the thickness of the film reaches the micronscale at 150 o C on super 13Cr surfaces after 30 days exposure [16], in comparison to the film formed at temperatures of 120°C or below which is orders of magnitude thinner. Zhang et al [9] proposed that the surface films may comprise both Cr2O3 and FeCO3 at 150 °C.…”

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na 2 WO 4 on N80 steel

“…where R ct(inh) and R ct are charge transfer resistance in the absence and presence of inhibitors, respectively. The result of EIS indicated that the radius of capacitance arc is related to the charge transfer resistance and double electric layer capacitor produced in the process of corrosion [18][19][20]. As figure 5 shows, there is a capacitive arc in the presence and absence of PPAPO with Na 2 WO 4 at 333 K, and the change of capacitance arc radius will occur with the concentration of PPAPO.…”

Effect of Acidizing Process on the Stress Corrosion Cracking of HP-13Cr Stainless Steel in the Ultra-depth Well Environment

“…While many ultra-depth well tubes fractured due to stress corrosion cracking (SCC), further research interests should be shifted to SCC in the HTHP environment (Zhu et al, 2011;Lei et al, 2015;Zhang et al, 2019). The SCC susceptibility of HP-13Cr SS was up to 42% exposure at 150°C and 1 MPa CO 2 environment (Yue et al, 2018).…”