Effect of oxide scale on corrosion behavior of HP-13Cr stainless steel during well completion process. (20th February 2021)

• Record Type: Journal Article
• Authors: Qi, Wenlong; Wang, Jidong; Li, Xuanpeng; Cui, Yanan; Zhao, Yang; Xie, Junfeng; Zeng, Guanxin; Gao, Qiuying; Zhang, Tao; Wang, Fuhui
• Is Part Of: Journal of materials science & technology. Volume 64(2021)
• Page Start: 153
• Page End: 164
• Publication Date: 2021-02-20
• Subjects: Stainless steel -- Oxide scale -- Roughness -- Interfacial area -- Turbulence eddy; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2019.10.009
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: The well completion process in oil and gas industry, aiming to build effective exploitation, is divided into acidizing and formation water production process. Oxide scale (OS) formed on the inner wall of the HP-13Cr stainless steel tubes during the hot extrusion process changes the surface roughness. The effects of OS on the corrosion of HP-13Cr stainless steel during well completion process were studied by corrosion measurement, spectra analysis, microscopic observation and numerical simulation. The results indicate that the OS make no change of phase distribution and element composition of corrosion scale, while the increasing OS roughness is the dominant factor for accelerating corrosion rate during the well completion process. In acidizing process, the greater surface roughness OS of HP-13Cr stainless steel increases the corrosion rate obviously due to a larger interfacial area in contact with the aggressive environment. During subsequent formation water production process, the turbulence eddy, formed at locations characterized with greater surface roughness OS, can deteriorate the corrosion scale and accelerate the mass transfer of the corrosive species, resulting in more serious corrosion.