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| 天然气井腐蚀预测研究 | |
| 引用本文： | 张继川,张双蕾,段蕴琦,魏军. 天然气井腐蚀预测研究[J]. 钻采工艺, 2012, 35(3): 86-88,13 |
| 作者姓名： | 张继川 张双蕾 段蕴琦 魏军 |
| 作者单位： | 1. 西南石油大学 2. 重庆科技学院 3. 中国石油天然气股份有限公司西南油气田分公司 |
| 摘 要： | CO2腐蚀是石油、天然气工业最主要的危害之一,并已引起人们广泛关注。研究CO2的腐蚀机理,对CO2腐蚀速率进行预测,有着重要的社会意义和经济价值。国外CO2腐蚀预测模型已达十多种,目前最为常用的是Norsok和De Waard模型。通过分析含CO2天然气井的腐蚀影响因素,揭示了井下油管腐蚀速率与各腐蚀因素之间的内部规律。运用Norsok和De Waard模型对井下油管的CO2腐蚀速率进行预测,得到了高温、高压气井CO2腐蚀程度变化趋势,为含CO2天然气井腐蚀防护提供了理论参考。 |
| 关 键 词： | CO2 天然气井 腐蚀 预测 规律 |
RESEARCH ON CO2 CORROSION PREDICTION IN NATURAL GAS WELLS |
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| ZHANG Jichuan,ZHANG Shuanglei,DUAN Yunqi,and WEI Jun. RESEARCH ON CO2 CORROSION PREDICTION IN NATURAL GAS WELLS[J]. Drilling & Production Technology, 2012, 35(3): 86-88,13 | |
| Authors: | ZHANG Jichuan ZHANG Shuanglei DUAN Yunqi and WEI Jun |
| Affiliation: | 1.Southwest Petroleum University;2.Chongqing University of Science & Technology;3.PetroChina Southwest Oil & Gas Field Company) |
| Abstract: | CO2 corrosion is one of the major hazards in oil and gas industry and has caused widespread concern.Researching the corrosion mechanism of CO2 and predicting the corrosion rate has important social significance and economic value.Foreign CO2 corrosion prediction models have many,and in which Norsok and De Waard model are used widely in recent years.By analyzing the corrosion factors of natural gas wells with CO2,the internal rules between each corrosion factor and corrosion rate of downhole tubing were discussed.By using Norsok and De Waard model to predict the CO2 corrosion rate of downhole tubing,the CO2 corrosion extent variation trend of high-temperature and high-pressure natural gas wells was obtained.The research provided a theoretical reference of corrosion protection for natural gas wells involving CO2. |
| Keywords: | CO2 natural gas wells corrosion prediction rule |
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