井筒清洗工具与套管的往复滑动摩擦磨损行为研究  

Reciprocating Sliding Friction and Wear Behavior between Wellbore Cleaning Tools against Casing

作　　者：赵玉滢 薛伟海 高禩洋[2] 郑博文 马汝涛 段德莉[2] ZHAO Yuying;XUE Weihai;GAO Siyang;ZHENG Bowen;MA Rutao;DUAN Deli(School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China;Liaoning Key Laboratory of Aeroengine Materials Tribology,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;CNPC Engineering Technology R&D Company Limited,Beijing 102206,China)

机构地区：[1]沈阳工业大学材料科学与工程学院,沈阳110870 [2]中国科学院金属研究所辽宁省航发材料摩擦学重点实验室,沈阳110016 [3]中国石油集团工程技术研究院有限公司,北京102206

出　　处：《表面技术》2024年第23期190-203,共14页Surface Technology

摘　　要：目的为了减少井筒清洁时间及成本,针对井筒清洗工具的石油钻井井筒工况,对一体化井筒清洁工具中的刮削块部分,采用激光熔覆涂层表面处理技术提高其耐磨性。方法采用多功能摩擦磨损实验机进行洗井液介质下套管与刮削块间的往复滑动摩擦磨损,通过螺旋测微器、电子天平、轮廓仪和白光干涉三维形貌仪测量套管与刮削块的损失量。采用光学显微镜、X射线衍射仪和扫描电镜表征涂层结构及磨损形貌。结果实验结果表明,刮削块与套管间的磨损机制主要为磨粒磨损和黏着磨损,最佳的摩擦配副为销试样AISI4330V和板试样Ni55涂层。该配副销试样的质量损失为0.35 g,高度损失为26μm,与未处理的42CrMo板试样对磨后的数值接近,板试样的磨痕深度为12μm,该损失量远小于其他板试样的损失量。其中硬度居中的激光熔覆Ni55涂层在磨损过程中,其亚表层内的碳化物组织破碎为块状颗粒,在摩擦磨损中起到了很好的承载作用。硬度较高的Stellite6涂层组织结合不致密,在摩擦磨损过程中易发生变形和破碎,且亚表层的碳化物组织在磨损的过程中破碎为更细小的颗粒,非但不能很好地抵抗磨损,还可能作为第三体磨粒进一步加剧磨损。结论在针对刮削块表面进行的激光熔覆涂层技术中,激光熔覆Ni55涂层可以作为提高刮削块耐磨性的有效方法。According to the working conditions of oil drilling wellbore,the multifunctional integrated wellbore cleaning technology is applied to reduce the time and cost of wellbore cleaning.The tools accompanying this technology include a variety of tools,in which the scraping block rubs against rust stains on the inner wall of the wellbore casing.There are drill cuttings left by drilling,cement slag,and debris such as casing injection burrs,and the inner wall of the casing needs to be replaced frequently due to its poor abrasion resistance,which increases the time required for wellbore cleaning,and thus increases the cost and reduces the efficiency of oil recovery.Therefore,laser cladding surface treatment is conducted to improve the wear resistance of the scraping block part of the multifunctional integrated wellbore cleaning tool.Laser cladding technology is widely used in petroleum machinery to solve the corrosion and wear problems caused by corrosive gas and metal particles generated during the oil extraction process.This paper mainly compared two laser cladding technologies,laser cladding Ni55 coating and laser cladding Stellite6 coating,and commonly used wear-resistant coating preparation parameters were used for the preparation process.Multi-functional friction and wear experimental machine was used to carry out the reciprocating sliding friction and wear between casing and scraping block under the medium of well washing fluid.The friction pair was mainly selected because the scraping block and the inner wall of the casing had a long contact time,and the wear of casing was also related to the operation of the oilfield,and the serious abrasion would result in the abandonment of the oil wells.The loss of casing and scraping block was measured by spiral micrometer,electronic balance,profiler and white light interferometer.The coating structure and wear morphology were characterized by optical microscope,X-ray diffractometer and scanning electron microscope.The experimental results showed that the wear mechanism betwe

关 键 词：井筒清洁 刮削块 激光熔覆 摩擦磨损 耐磨性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]