Corrosion and Wear Resistant Boronizing for Tubulars and Components Used Down-Hole

R. Machado, Paola Andrea de Sales Bastos, Danny Daniel Socorro Royero, E. Medvedovski
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Abstract

Components and tubulars in down-hole applications for oil and gas production must withstand severe wear (e.g. erosion, abrasion, rod wear) and corrosion environments. These challenges can be addressed through boronizing of steels achieved employing chemical vapour deposition-based process. This process permits protection of the entire working surfaces of production tubulars up to 12m in length, as well as various sizes of complex shaped components. The performance of these tubulars and components have been evaluated in abrasion, erosion, and corrosion conditions simulating the environment and service conditions experienced in down-hole oil and gas production. Harsh service conditions are very common in the oil industry and the combination of abrasion, friction-induced wear, erosion, and corrosion environments can be quite normal in wells producing with the assistance of artificial lift methods. The boronized steel products demonstrated significantly higher performance in terms of material loss when exposed to harsh operating conditions granting a significant extension of the component service life in wear and corrosion environments. As opposed to many coating technologies, the boronizing process provides high integrity finished products without spalling or delamination on the working surface and minimal dimensional changes. Successful application of tubulars and components with the iron boride protective layer in oil and gas production will be discussed and presented.
井下管材及部件的耐腐蚀耐磨渗硼处理
在油气生产的井下应用中,组件和管柱必须承受严重的磨损(例如侵蚀、磨损、抽油杆磨损)和腐蚀环境。这些挑战可以通过采用化学气相沉积工艺对钢进行渗硼处理来解决。该工艺可以保护长达12米的生产管的整个工作表面,以及各种尺寸的复杂形状部件。在模拟井下油气生产环境和服务条件的磨损、侵蚀和腐蚀条件下,对这些管柱和组件的性能进行了评估。在石油工业中,恶劣的使用条件非常普遍,在人工举升方法的辅助下,磨损、摩擦磨损、侵蚀和腐蚀环境的组合是很正常的。当暴露在恶劣的操作条件下,硼化钢产品在材料损耗方面表现出明显更高的性能,在磨损和腐蚀环境中显著延长了部件的使用寿命。与许多涂层技术相反,渗硼工艺可以提供高完整性的成品,不会在工作表面产生剥落或分层,并且尺寸变化最小。介绍了具有硼化铁保护层的管材和部件在油气生产中的成功应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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