Corrosion Behavior of P110 Tubing Steel in the CO2-saturated Simulated Oilfield Formation Water with Element Sulfur Addition

被引：4
|
作者：
Miao Jian [1 ,2 ]
Yuan Juntao [2 ]
Han Yang [2 ]
Xu Xiuqing [2 ]
Li Lei [2 ]
Wang Ke [2 ]
机构：
[1] Xi An Jiao Tong Univ, Xian 710049, Shaanxi, Peoples R China
[2] CNPC, State Key Lab Performance & Struct Safety Petr Tu, Tubular Goods Res Inst, Xian 710077, Shaanxi, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2018年 / 47卷 / 07期
基金：
中国国家自然科学基金;
关键词：
P110 tubing steel; elemental sulfur; corrosion; formation water; CO2; CO2; CORROSION; CARBON-STEEL; MILD-STEEL; LAYER; TEMPERATURE; STRESS; MODEL;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
With continuously growing oil and gas demand, exploitation of highly sour reservoirs brings large corrosion risks due to the coupling effects of corrosive factors including elemental sulfur, CO2, and formation water. In the present work, corrosion behavior of P110 tubing steel in simulated oilfield formation water containing elemental sulfur and CO2 was investigated by immersion tests and electrochemical measurements. The results indicate that increasing temperature accelerates the corrosion rate of P110 tubing steel, promotes the formation of iron sulfide, and causes serious pitting corrosion. However, influence of temperature varies in different temperature range mainly due to the different corrosion-controlling species like CO2 at low temperatures and elemental sulfur at high temperatures. Based on the results, the coupling effects of elemental sulfur and carbon dioxide were discussed.
引用
收藏
页码：1965 / 1972
页数：8
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