柔性连续抽油杆抽油技术的研究_学位论文.doc

  柔性连续抽油杆抽油技术的研究 摘 要 抽油杆是有杆泵抽油过程中的重要工具，而柔性连续抽油杆抽油系统是近年 来我国石油工业的一项新技术。柔性连续抽油杆具有柔性、连续、重量轻、强度 高的特点，很好的解决了常规杆所带来的脱扣、摩擦阻力大、作业时间较长等问 题。因此柔性连续抽油杆采油系统对于采油效率和产量影响显著。但是目前柔性 连续抽油杆的应用缺乏完善的理论指导及其配套的设备和工具，致使其不能广泛 应用。 本文在总结前人研究成果的基础上，首先分析了柔性连续抽油杆的特性、受 力情况等基本理论，对柔性连续抽油杆的抽油系统杆柱及配重的优化方案进行分 析，提出柔性连续抽油杆的设计方案。然后通过进行水力模拟井试验，以提高有 杆抽油系统的效率为目标，对使用柔性连续抽油杆的抽油机井进行超冲程分析、 达到最大产液量时最优参数的选择以及相关的效率分析。最后讨论了使用柔性连 续抽油杆的相关配套设备。因此，本文对使用柔性连续抽油杆有积极的指导作用， 且将拓宽柔性连续抽油杆在抽油井中的应用范围，充分展示了柔性连续抽油杆所 具有的优越性。 关键词：柔性抽油杆，杆柱设计，加重杆，超冲程 Research On Flexible Continuous Sucker Rod Pumping Technology ABSTRACT Pumping rod is the key component of the rod pumping system. And flexible sucker rod pumping system is a new technology of oil industry in our country recently. The flexible sucker rod has the advantages of flexibility, continuity, light weight and high strength. It can also solve some problems difficult to overcome, such as: thread off, long work time, large friction resistance, and so on. So the flexible sucker rod pumping system exerts a significant influence on productivity and output of oil extraction. But at present, because of the lack of perfect theory for guiding the application of the flexible sucker rod pumping rod as well as its matching equipments and tools, it can not be widely used. Based on the previous theoretical study, the basic theory of feature , force of the flexible sucker rod pumping rod are described. The article analyzes the optimization program of the flexible sucker rod pumping and heavy weight of the flexible sucker rod pumping system. Then it proposes the design of the flexible sucker rod pumping rod. In order to enhance rod pumping efficiency of the system, by doing experiments the article analysis the overstroke of pumping that used flexible continuous sucker rod and the optimal Parameters that can be to attain Maximum liquid production. At the end the matching equipments and tools of the flexible sucker rod pumping are discussed. So