孙福洋,赵国仙,郭清超,李丹平.镍钨合金镀层对 QT-900 油管耐 CO2 腐蚀的影响[J].表面技术,2014,43(6):6-10,15.
SUN Fu-yang,ZHAO Guo-xian,GUO Qing-chao,LI Dan-ping.Effect of Ni-W Alloy Coating on the Corrosion Resistance of QT-900 Coiled Tubing[J].Surface Technology,2014,43(6):6-10,15 |
| 镍钨合金镀层对 QT-900 油管耐 CO2 腐蚀的影响 |
| Effect of Ni-W Alloy Coating on the Corrosion Resistance of QT-900 Coiled Tubing |
| 投稿时间：2014-06-30 修订日期：2014-12-10 |
| DOI： |
| 中文关键词: 镍钨合金镀层 QT-900 连续油管 耐蚀性 |
| 英文关键词:Ni-W alloy coating QT-900 coiled tubing corrosion resistance |
| 基金项目:国家自然科学基金资助项目(51271146) |
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| Author | Institution |
| SUN Fu-yang | School of Material Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China |
| ZHAO Guo-xian | School of Material Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China |
| GUO Qing-chao | School of Material Science and Engineering, Hebei University of Technology, Tianjin 300131, China |
| LI Dan-ping | Xi'an Maurer Petroleum Engineering Laboratory Co. , Ltd, Xi'an 710065, China |
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| 中文摘要: |
| 目的 对镍钨合金镀层在连续油管上的应用进行初步探索。 方法 通过直流电沉积法,在 QT-900 连续油管表面沉积镍钨合金层。 模拟某油田腐蚀环境,通过高温高压腐蚀实验,采用金相显微镜、SEM 和 EDS 等分析手段,对比镀镍钨合金连续油管和普通连续油管的耐蚀性能,研究在 CO2 介质中镍钨合金镀层对油管耐蚀性的影响。 结果 镍钨合金镀层中主要含 Ni 和 W 元素,Fe 和 Mn 元素含量较少,镀层平均厚度在 55 μm 左右。 在温度 60 ℃ ,CO2 分压 1. 07 MPa,拉应力 439 MPa 的条件下,镍钨合金镀层的平均腐蚀速率为 0. 0160 mm/ a,约为普通连续油管的 1 /40,属于轻度腐蚀。 结论 镍钨合金镀层具有良好的耐 CO2 腐蚀性能。 |
| 英文摘要: |
| Objective To preliminarily explore the application of Ni-W alloy coating in QT-900 coiled tubing. Methods Ni-W alloy coating was deposited on the surface of QT-900 coiled tubing by DC electrodeposition. An oilfield corrosion environment was simulated by high temperature and high pressure corrosion tests. The effect of Ni-W alloy coating on coiled tubing was studied by comparing the corrosion resistance of Ni-W alloy coating and coiled tubing using analysis methods such as microscopy, SEM and EDS. The effect of Ni-W alloy coating on the corrosion resistance of oil tubing in CO2 medium was studied. Results Ni-W alloy coating mainly consisted of Ni and W elements, and the Fe and Mn contents were low. The average thickness of the coating was 55 μm. The uniform corrosion rate of Ni-W alloy coating was 0. 0160 mm/ a at 60℃, with a CO2 partial pressure of 1. 07 MPa and a tensile stress of 439 MPa, which was 1 /40 of that of the ordinary coiled tubing. The corrosion rate belonged to slight corrosion. Conclusion Ni-W alloy coating had a good resistance to CO2 corrosion. |
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