| CO2对油井水泥石的腐蚀:热力学条件、腐蚀机理及防护措施 |
| |
| 引用本文： | 姚晓.CO2对油井水泥石的腐蚀:热力学条件、腐蚀机理及防护措施[J].西南石油大学学报（自然科学版）,1998,20(3):68-71. |
| |
| 作者姓名： | 姚晓 |
| |
| 作者单位： | (西南石油学院化学工程系,四川南充637001) |
| |
| 摘 要： | 从水泥化学角度出发,分析了CO2在较低温度(〈110℃)下对油井水泥石碳化腐蚀的机理,并应用热力学方法计算了油井水泥熟料矿物及水化产物在温环境下受CO2侵蚀的条件。还针对国内富含CO2油气田的实际情况,提出了不同地层温度下防止CO2腐蚀水泥环的措施,推荐了判断CO2腐蚀程度的参考判据。
|
| 关 键 词： | 油井水泥 固井 二氧化碳腐蚀 热力学 机理 措施 |
| 收稿时间： | 1998-02-27 |
CO2 Corrosion on Oilwell Cement Shearth:Thermodynamic Criteria,Corrosive Mecha-nism and Prevention |
| |
| Yao Xiao.CO2 Corrosion on Oilwell Cement Shearth:Thermodynamic Criteria,Corrosive Mecha-nism and Prevention[J].Journal of Southwest Petroleum University(Seience & Technology Edition),1998,20(3):68-71. |
| |
| Authors: | Yao Xiao |
| |
| Institution: | ( Dept. of Chemical Engineering, SWPI,Sichuan, 637001 ) |
| |
| Abstract: | The carbonation mechanism of CO2 corrosion on oilwell cement shearth at temperatres lower than 110℃is analyzed from a cement chemistry point ofview, and thecriteria of corrosion are discussed on the basis of thermodynamic principles. Ways to pre-vent oilwell cement shearth from CO2 corrosion fordomestic oilfields with high CO2 concentrations are proposed. A (cited ) criterion for predicting carbon-ation of the shearth is also recommended. |
| |
| Keywords: | Oilwell cement Well cementing CO2corrosion Thermodynamics Mechanism |
|
| 点击此处可从《西南石油大学学报（自然科学版）》浏览原始摘要信息 |
| 点击此处可从《西南石油大学学报（自然科学版）》下载免费的PDF全文 |
