钻采工程

脉冲电沉积制备NiW-Si3N4/MWCNTs复合镀层及其性能研究

  • 张伟 ,
  • 李本刚 ,
  • 龙雄云 ,
  • 景文杰 ,
  • 朱名召 ,
  • 李虹杰 ,
  • 张维罡 ,
  • 何腾
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  • 1.中国石油长庆油田分公司,宁夏 银川 750003;
    2.中国石油长庆油田分公司,宁夏 吴忠 751506;
    3.西南石油大学,四川 成都 610500;
    4.东北石油大学,黑龙江 大庆 163318
张伟(1985—),男,工程师,2009年毕业于长江大学石油工程专业,现从事油气田集输工艺、腐蚀与材料方面的研究工作。

收稿日期: 2020-09-19

  修回日期: 2021-06-01

  网络出版日期: 2022-02-18

基金资助

西南石油大学油气藏地质及开发工程国家重点实验室开放课题基金“G201810-酸性气田安全开发及高效利用材料”(G201810);西南石油大学研究生科研创新基金“三维导电基底负载过渡金属基复合材料的制备及电催化析氢性能研究”(2019cxzd030)

Study on Preparation of NiW-Si3N4/MWCNTs Composite Coating by Pulse Electrodeposition and Its Performance

  • Zhang Wei ,
  • Li Bengang ,
  • Long Xiongyun ,
  • Jing Wenjie ,
  • Zhu Mingzhao ,
  • Li Hongjie ,
  • Zhang Weigang ,
  • He Teng
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  • 1. PetroChina Changqing Oilfield Company, Yinchuan, Ningxia 750003, China;
    2. PetroChina Changqing Oilfield Company, Wuzhong, Ningxia 751506, China;
    3. Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    4. Northeast Petroleum University, Daqing, Heilongjiang 163318, China

Received date: 2020-09-19

  Revised date: 2021-06-01

  Online published: 2022-02-18

摘要

长期暴露在复杂工况下的油管、套管钢材表面极易发生腐蚀,导致材料使用寿命降低,影响油井正常生产。通过脉冲电沉积技术在C45钢基材表面制备了NiW-Si3N4/MCNTs复合镀层,并探究了纳米颗粒Si3N4与MWCNTs用量对复合镀层表面微观形貌、硬度和耐蚀性等性能的影响。研究表明:纳米颗粒的加入在抑制Ni-W镀层的(220)与(200)晶面生长的同时,还能促进Ni-W镀层晶粒的细化,大幅度提升NiW-Si3N4/MCNTs复合镀层的显微硬度,最高可达1 243.7 HV;与Ni-W镀层相比,NiW-Si3N4/MCNTs复合镀层的阻抗更大,腐蚀速率更低,抗腐蚀性能更好。该项研究为进一步提高Ni-W镀层物理化学性能奠定了理论基础,缓解了油管的腐蚀问题。

本文引用格式

张伟 , 李本刚 , 龙雄云 , 景文杰 , 朱名召 , 李虹杰 , 张维罡 , 何腾 . 脉冲电沉积制备NiW-Si3N4/MWCNTs复合镀层及其性能研究[J]. 特种油气藏, 2021 , 28(4) : 158 -163 . DOI: 10.3969/j.issn.1006-6535.2021.04.022

Abstract

It is prone to corrosion for the steel surface of tubing and casing exposed to complex working conditions for a long time, leading to a reduction in the service life of the material and impact on the production of oil wells. NiW-Si3N4/MCNTs composite coating was prepared on the surface of C45 steel substrate by pulse electrodeposition technology, and the influence of the amount of nano-particles Si3N4 and MWCNTs used on the surface micromorphology, hardness and corrosion resistance of the composite coating was explored. It was found in the study that nano-particles added could inhibit the growth of the (220) and (200) crystal planes of the Ni-W coating, and promoted the crystal particle refinement of the Ni-W coating, greatly enhancing the microhardness (up to 1 243.7 HV) of NiW-Si3N4/MCNTs composite coating; compared with Ni-W coating, NiW-Si3N4/MCNTs composite coating was higher in resistance, lower in corrosion rate and better in corrosion resistance. The study laid a theoretical foundation for further enhancement of physico-chemical properties of Ni-W plating and reduction of tubing corrosion.

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