新型耐磨蚀油管技术在油田中的应用

新型耐磨蚀油管技术在油田中的应用

王玉荣,贾博

(大港油田第一采油厂工艺研究所，天津 300280)

摘要：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。

关键词：磨蚀；油管；内衬；内涂层；检泵周期

中图分类号：TE358

作者简介：第一王玉荣(1973年生)，女，工程师，2003年毕业于天津理工学院，现从事采油专业技术研究工作。邮箱：yongmeicy@sina.cn。

Application of New Anti-Abrasion Tubing Technology in Oilfields

Wang Yurong, Jia Bo

(TechnologyResearchInstituteofNo.1OilProductionPlant,DagangOilfield,Tianjin300280,China)

Abstract: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.

Key words: abrasion; tubing; lining; internal coating; pump inspection period

随着油田开发进入中、高含水期，油藏地质状态、油井井身情况发生较大变化，大斜度井及侧钻井井数逐渐增多，抽油机井管杆偏磨造成的断、磨、漏问题日益突出。每年因油管、抽油杆偏磨腐蚀造成的作业量占油井全部维护工作量的20%～30%，增加了作业费用和管杆投入费用。近几年来，通过综合治理，偏磨问题得到一定缓解，但仍是造成油井免修期短的主要原因。……