Corrosion Behavior on 20# Pipeline Steel by Sulfate-Reducing Bacteria in Simulated NaCl Alkali/Surfactant/Polymer Produced Solution.
Li ZhangXin YuHe SunYang GeChao WangLimin LiJian KangHuijuan QianQinghe GaoPublished in: ACS omega (2023)
The corrosion behavior of sulfate-reducing bacteria (SRB) on 20# carbon steel in the NaCl alkali-surfactant-polymer (ASP) flooding system was studied by scanning electron microscopy, electrochemical measurement, X-ray photoelectron spectroscopy, and laser confocal microscopy. The results showed that the presence of SRB results in a large viscosity loss of the system. SRB can use hydrolyzed polyacrylamide (HPAM) as a nutrient to grow, and the number of SRB remained at a high level after 15 days. Weight loss and electrochemical tests indicated that SRB promoted corrosion of pipeline steel. The corrosion of carbon steel in the early stage of immersion was inhibited by the biofilm formed on the surface, and the thick biofilm in the later stage of immersion caused serious pitting corrosion. The localized corrosion caused by SRB was not inhibited by HPAM and sodium petroleum sulfonate (surfactant) adsorbed on the surface.
Keyphrases
- electron microscopy
- early stage
- pseudomonas aeruginosa
- weight loss
- high resolution
- staphylococcus aureus
- biofilm formation
- gold nanoparticles
- bariatric surgery
- escherichia coli
- magnetic resonance imaging
- candida albicans
- magnetic resonance
- type diabetes
- adipose tissue
- cystic fibrosis
- neoadjuvant chemotherapy
- mass spectrometry
- liquid chromatography
- obese patients
- high speed