新型耐磨蚀油管技术在油田中的应用

Application of New Anti-Abrasion Tubing Technology in Oilfields

随着油田大斜度井及侧钻井井数逐渐增多,抽油机井管杆偏磨问题日益突出。从大港油田第一采油厂油井维护作业中管杆偏磨、腐蚀断脱及管柱漏失井入手,介绍了目前内衬油管及内涂层油管处理技术的优越性,研究确定了技术适应性、适应范围,并进行了综合对比分析评价。室内实验证实,内衬油管磨损量低于N80油管,对接箍磨损量基本为零,起到了双向保护作用;具有耐磨涂层转移膜的油管磨损实验后表面仍比较平滑。两种技术均显示了较好的耐磨性能。现场应用数据表明,两项技术减缓了管杆偏磨腐蚀,延长其自身检泵周期一倍以上,拓宽了防偏磨技术思路,具有较高的经济效益,为今后井筒油管柱磨蚀治理技术水平的提高奠定了基础。

With the number of highly deviated wells and side drilling wells gradually increased, the problem of eccentric wear of rod for pumping wells was highlighted. We originated from the corrosion and broken on suck rod and tubing leakage during oil well maintaining work in No. 1 Oil Production Plant in Dagang Oilfield. The superiority of lining tubing and undercoated tubing was introduced. According to research, we found the adaptability and scope about this kind of technology, and then made a comprehensive comparison to get an analysis and evaluation. Indoor experiments confirmed lined tubing wear was less than N80 tubing, and the amount of wear butt hoop was almost zero, which played the role of bi-directional protection. Tubing wear of resistant surface coating transfer film was still relatively smooth after the experiment. Both of the techniques showed good wear resistance. Field application data showed that the two technology slowed pipe rod eccentric wear corrosion, extended the own pump inspection period over one time, and broadened the technical ideas on avoiding suck with high economic benefit, which laid a foundation on technology improving of governing the corrosion and broken on suck rod and tubing.