W22区块油井管杆腐蚀偏磨治理技术  

The treatment techniques of corrosion and part wear for the Oil pipes in W22 block

作　　者：靳从起[1] 赵普春 王世录 卢艳[2] 

机构地区：[1]中原石油勘探局采油三厂,山东辛县252429 [2]中原石油勘探局油田化学技术研究所,山东辛县252429

出　　处：《钻采工艺》2000年第1期32-35,共4页Drilling & Production Technology

摘　　要：针对中原油田Ｗ２２ 区块油井管杆腐蚀偏磨，停产待检修井增多等问题，经过检修井起出的管杆检查和油井产出水水质监测分析，认识到油井管杆被腐蚀偏磨，一是产出水有盐酸溶液的强腐蚀性；二是井身倾斜，形成偏磨；三是缝隙腐蚀和冲蚀综合作用等。提出：①在油井注入缓蚀剂；②在抽油杆表面涂防腐涂料和使用高强度抽油杆；③安装稳定器和使用旋转井口装置；④变换抽油杆节箍位置。通过应用以上综合技术，使Ｗ２２ 区块油井检泵周期延长２２０ 天，投入与产出比１∶４－８８，创经济效益１４６－９ 万元。Through analysis of tubing corrosion and part wear for the oil wells in W22 blocks,some reasons caused tubing corrosion and part wear are obtained:①powerful corrosivity in produced water;②part wear due to wellbore deviation;③comprehensive action of crevice corrosion and washing etc..In this paper,some prevention measures are proposed,these are ①injection corrosion inhibitor in oil well;②smearing corrosion prevention material on sucker rod surface and using high strength sucker rod;③mounting stabilizer and using rotary wellhead equipment;④changing location of sucker-rod coupling.After application of these techniques,useful life of oil well checking pumps are extended 220 days in W22 blocks.Economic benefit is upto one million,four hundred and sixty-nine thousand yuan.

关 键 词：油管 抽油杆 腐蚀 磨损 油田 防腐 防磨 

分 类 号：TE983[石油与天然气工程—石油机械设备]