低摩擦速度下CT80油管摩擦磨损性能
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摘要
研究采油过程中CT80油管与电缆在0.01～0.13 m/s速度下对摩时的摩擦磨损行为及其对油管剩余强度的影响。采用扫描电子显微镜及金相显微镜对油管组织、磨损表面及截面特征进行表征。结果表明:CT80油管的磨损量、壁厚减薄量与摩擦因数随摩擦速度增加先增大,速度达到0.07 m/s后趋于平稳;磨损率随着摩擦速度增加先增大后降低,最大磨损率对应的摩擦速度为0.07 m/s;采油过程中磨粒磨损与腐蚀磨损共同作用于油管,随着摩擦速度升高磨粒磨损造成的损失降低,腐蚀磨损造成的损失升高;随着摩擦速度增加油管的剩余抗挤毁强度以及剩余抗内压强度先降低后趋于平稳。
The influence of velocity(from 0.01 m/s to 0.13 m/s) on friction and wear behavior and the residual strength of the CT80 tubing during oil recovery were studied.The tubing microstructure and the characteristics of the wear surfaces and cross sections were analyzed by the scanning electron microscope(SEM) and the metallographic microscope.The results show that the wear mass loss and wall thickness reduction of CT80 tubing and the friction coefficient between tubing and cable are increased rapidly with increasing of friction velocity,then are stabilized when the friction velocity reaches 0.07 m/s.The wear rate of the tubing is increased first and then decreased,and the critical velocity corresponding to the maximum wear rate is 0.07 m/s.Abrasive wear and corrosive wear of the tubing occur at the same time during oil recovery,and as friction velocity increases,the wear mass loss produced by abrasive wear is decreased,while the wear mass loss produced by corrosive wear is increased.As friction velocity increases,the collapsing strength and residual internal pressure strength of the tubing are decreased first then stabilized.
The influence of velocity(from 0.01 m/s to 0.13 m/s) on friction and wear behavior and the residual strength of the CT80 tubing during oil recovery were studied.The tubing microstructure and the characteristics of the wear surfaces and cross sections were analyzed by the scanning electron microscope(SEM) and the metallographic microscope.The results show that the wear mass loss and wall thickness reduction of CT80 tubing and the friction coefficient between tubing and cable are increased rapidly with increasing of friction velocity,then are stabilized when the friction velocity reaches 0.07 m/s.The wear rate of the tubing is increased first and then decreased,and the critical velocity corresponding to the maximum wear rate is 0.07 m/s.Abrasive wear and corrosive wear of the tubing occur at the same time during oil recovery,and as friction velocity increases,the wear mass loss produced by abrasive wear is decreased,while the wear mass loss produced by corrosive wear is increased.As friction velocity increases,the collapsing strength and residual internal pressure strength of the tubing are decreased first then stabilized.
引文
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[3]ANTONOV M,AFSHARI H,BARONINS J,et al.The effect of temperature and sliding speed on friction and wear of Si3N4,Al2O3,and Zr O2,balls tested against Al CrN PVD coating[J].Tribology International,2018,118:500-514.
[4]李占国,张明杰,史尧臣.基于ANSYS CFX的抽油杆减振器阻尼力仿真分析[J].机床与液压,2017,45(1):156-159.LI Z G,ZHANG M J,SHI Y C.Simulation analysis for damping force of rod string absorber based on ANSYS CFX[J].Machine Tool&Hydraulics,2017,45(1):156-159.
[5]居毅,郭绍义.碳氮共渗钢干摩擦状态下磨损行为的研究[J].浙江理工大学学报,2001,18(3):150-153.JU Y,GUO S Y.Study on dry sliding wear behaviors of carbonnitriding layer on 20#steel[J].Journal of Zhejiang Secience and Technology University,2001,18(3):150-153.
[6]SHANMUGHASUNDARAM P.Effect of temperature,load and sliding velocity on the wear behavior of AA7075-SIC composites[J].Mechanics and Mechanical Engineering,2017,22(1):85-93.
[7]NGUYEN Q B,SIM Y H M,GUPTA M,et al.Tribology characteristics of magnesium alloy AZ31B and its composites[J].Tribology International,2015,82:464-471.
[8]刘玉文,刘建华.载荷和摩擦速度对多元铜合金摩擦磨损性能的影响[J].热加工工艺,2008(16):41-43.LIU Y W,LIU J H.Influence of Loads and Sliding Speed on Friction and Wear Properties of Multi-component Copper Alloy[J].Hot Working Technology,2008(16):41-43.
[9]陈平,张厚安.MoSi2/CrWMn钢干摩擦磨损特性及磨损机理的研究[J].矿冶工程,2002,22(4):103-105.CHEN P,ZHANG H A.Dry friction-wear properties and wear mechanisms of the pairs of MoSi2against CrWMn steel[J].Mining and Metallurgical Engineering,2002,22(4):103-105.
[10]LIN T,ZHANG Q,LIAN Z,et al.Evaluation of casing integrity defects considering wear and corrosion-application to casing design[J].Journal of Natural Gas Science&Engineering,2016,29:440-452.
[11]万立夫,李根生,管志川.深井内壁磨损套管剩余抗内压强度研究[J].石油机械,2012,40(5):24-28.WAN L F,LI G S,GUAN Z C.Research on the calculation model of residual internal pressure strength of inner wall worn casing in deep wells[J].China Petroleum Machinery,2012,40(5):24-28.
[12]MENG Y X,QING Q D,XIAO B L,et al.Residual strength analysis of oil tubes with corrosion defect[J].Materials Science Forum,2016,4328(850):950-956.
[13]American Petroleum Institute.Technical report on equations and calculations for casing,tubing,and line pipe used as casing or tubing,and performance properties tables for casing and tubing:API TR 5C3-2008[S].Washington:American Petroleum Institute Press,2008.