石油科技论坛

石油科技论坛 ›› 2017, Vol. 36 ›› Issue (增刊): 128-131.DOI: 10. 3969/ j. issn. 1002-302x. 2017. z1. 035

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镀钨合金防腐抽油杆

李春茂　郭庆荣　韩民强   

  1. 中国石油集团渤海石油装备制造有限公司新世纪机械制造公司
  • 出版日期:2018-03-25 发布日期:2018-04-13
  • 基金资助:
    中国石油集团渤海石油装备制造有限公司科研项目“镀钨防腐工艺应用研究” (编号: BHZB/ Q/ B7. 2. 1-01)。

Tungsten Alloy Plated Sucker Rod

Li Chunmao, Guo Qingrong, Han Minqiang   

  1. New Century Machinery Pumping Unit Company, CNPC Bohai Equipment Manufacturing Co Ltd, Tianjin 300280, China
  • Online:2018-03-25 Published:2018-04-13

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摘要： 目前油气田开采过程中腐蚀状况日趋严重, 亟需开发性价比高的抗腐蚀耐偏磨系列抽油杆。采用复合电 镀法在抽油杆表面电镀钨合金, 镀层呈非晶态纳米晶结构, 在合金组分、电镀工艺、褪镀工艺、环保处理上有所创新。 通过系列腐蚀性能、强度比较测试, 结果显示可有效提高防腐耐磨性能, 延长抽油杆及其接箍在恶劣腐蚀环境中的使 用寿命。各级镀钨合金抽油杆在国内外油田应用效果良好, 有效避免了腐蚀、结垢、偏磨等现象, 降低了采油成本。 各项技术指标均达到油田要求, 技术居国内外领先水平。

关键词: 镀钨合金; 抽油杆; 工艺特点; 防腐蚀性; 应用效果

Abstract: Currently, corrosion is a serious problem in the production process of oil and gas fields and calls for a series of anti-corrosion and bias-abrasion resistant sucker rods with a high cost performance. The compound electroplating method is used to plate tungsten alloy on the surface of sucker rod. The coating formed a nano crystalline structure in non-crystalline state. Innovations were made in alloy compositions, electroplating process and environmental treatment. The tests on anti-corrosion performance and comparison of strength indicated that tungsten alloy plating effectively improved anti-corrosion and anti-wearing performance and extended the service life of sucker rod and it s coupling under the harsh and corrosive environments. Tungsten alloy plated sucker rods have good application results at domestic and foreign oilfields, effectively preventing corrosion, scaling and bias abrasion and reducing the oil production cost. With all technological indexes satisfying the requirements of oilfields, tungsten alloy plated sucker rod method is a technological leader both at home and abroad.

Key words: tungsten alloy plating, sucker rod, process characteristics, anti-corrosion performance, application results