Pipelines transporting oil and gas are vulnerable to internal corrosion when water forms a part of the transported fluids. The presence of carbon dioxide (CO2) in the fluid accelerates the corrosion rate due to its reaction with water which results in forming carbonic acid, and hence, water pH...
【英文名称】Corrosion Inhibitor of ZK-508 【主要成分】咪唑啉衍生物、炔氧甲基季铵盐等。 【物化性质】棕色粘稠液体,无刺激性气味,易溶于醇、酸和水中。 【质量标准】有效含量,% 40~45 密度(20℃),g/cm3 0.90~1.20 pH值,(1%水溶液) 3~7 腐蚀速度,mm/a <0.076 【适用范围】本品适用于油气井产出液含...
The mechanistic model of uniform CO2 corrosion is presented which covers: electrochemical reactions at the steel surface, diffusion of species between the metal surface and the bulk including diffusion through porous surface films, migration due to establishment of potential gradients and homogenous chemica...
Effect of H2S on the CO2 corrosion of carbon steel in acidic solutions The objective of this study is to evaluate the effect of low-level hydrogen sulfide (H 2S) on carbon dioxide (CO 2) corrosion of carbon steel in acidic sol... YS Choi,S Nesic,S Ling - 《Electrochimica Acta》 被...
Nesic, "Electrochemistry of CO2 corrosion of mild steel: Effect of CO2 on cathodic currents", ... A Kahyarian,B Brown,S Nesic - 《Corrosion Science》 被引量: 1发表: 2017年 Effect of sodium chloride on corrosion of mild steel in CO2-saturated brines Corrosion rates of mild steel were ...
The corrosion rate of carbon steel in CO2 containing environments depends very much on the formation of protective corrosion product films. The parameters affecting film formation have been studied in a large number of flow loop experiments performed in the temperature range 20-120 C. Film formation...
ed.Throughorthogonaltest corrosionrates ereobtained ith eight-losstest.Thecorrosionresistanceofmaterials asintheorderof1Cr18Ni9Ti>1Cr13>alumini edmildsteel> incimpregnatedN80>N80.Keywords Naturegas CO2corrosion Corrosionresistance Weight-losstest Oilcasing随着天然气工业的迅速发展 CO2对油套管的腐蚀问题成为天然...
In Situ Observation of the Degradation Behavior and the Systematic Investigation of Corrosion Mechanism in AZ31 Alloy Long‐time immersion and electrochemical tests are applied to investigate the corrosion mechanism systematically. The corrosion attacks of as‐received and as﹕... X Yan,L Chen,X Xu,...
It was found that the general CO 2corrosion rate significantly decreased as the temperature decreased. The general CO 2corrosion rate was found to be under charge transfer control at low temperatures (1 – 10ºC). It was also found that the experimental data were not consistent with the ...
corrosion environment,and it is also the entry point to study the corrosion behavior of CO2/H2S for most scholars.However,there is no agreement within current researches about the range of the partial pressure ratio.Practical experiences both at home and abroad show that,corrosion inhibitor ...