35Mn2与20CrMo抽油杆的抗腐蚀性能评价  

Evaluation of corrosion resistance characteristic on 35Mn2 and 20CrMo sucker rod in oil field

作　　者：吴宗福[1] 张栋杰[1] 裴润有[1] 王大创 严密林[2] 

机构地区：[1]长庆石油勘探局采油二厂,甘肃庆阳745113 [2]中国石油天然气集团公司管材研究所,陕西西安710065

出　　处：《石油矿场机械》2000年第4期30-32,共3页Oil Field Equipment

摘　　要：腐蚀是油田开发中后期的突出问题。常规抽油杆柱设计选择主要考虑杆材的力学性能而忽视了其抗腐蚀能力 ,通过室内模拟环境耐腐蚀评价和电化学分析中自腐蚀电位变化及线性极化特征变化 ,证明了不同介质中不同材质的抽油杆抗腐蚀性能差异较大 ,其直接影响着杆柱寿命和抽汲效果。Corrosion is important problem for development in oil field during its middle and later years.The mechanical property of string material is always considered to design the conventional sucker rod,but its corrosion resistance ability is ignored.Through the corrosion resistance evaluation in laboratory,electrochemical analysis and the characteristic changing of linear,it is proved that corrosion resistance characteristic is different for different material sucker rod in different media,that directly effects string life and sucking efficiency.

关 键 词：抽油杆 腐蚀 材料 介质 石油开采 锰钢 镍铬钢 

分 类 号：TE933.207[石油与天然气工程—石油机械设备] TE933.204