直线电机往复泵采油控制技术的研究.pdfVIP

测试工具与解决方案 2016.23 直线电机往复泵采油控制技术的研究 胥宗祥,刘曙光,邓 岩 （西安工程大学 电子信息学院，陕西西安,710048） 摘要：目前各油田的抽油设备多为游梁式抽油机，其存在的主要问题是能耗大、效率低。而直线电机抽油机采用直线电机驱动， 舍弃了大部分变速传动环节，将传统的旋转驱动变为直线往复驱动，使直线电机抽油机具有更加完善的运动性能、动力性能和 平衡性能。论文首先探讨了低渗透油田采油机理，进而分析了直线电机等效电路和机械特性，在此基础上提出了直线电机往复 泵采油工艺方案。试验结果证明，该工艺解决了杆管偏磨问题，提高了能源利用率，延长了检泵修井周期，是采油厂降本增效行 之有效的采油工艺。 关键词 ：直线电机;往复泵;采油工艺 中图分类号：TE922 文献标志码：A Research on Downhole Linear Motor Reciprocating Pump Xu Zongxiang,Liu Shuguang,Deng Yan (School of Electronic and Information Eng.,Xi’an Polytechnic University,Shaanxi,Xian,710048) Abstract：At present the pumping units are used widely in oil fields, their main problems are wasting energy,low efficiency.While a linear motor pumping unit removes many shift gears structures,turn the traditional circum rotary drive into linear reciprocation drive,which made the units have more perfect motion performance,dynamic performance,and balance performance.The low permeability oil field’s production mechanism is discussed, the equivalent circuit and mechanical properties of the linear motor is also analysed,furthermore the linear motor reciprocating pump production technology scheme is proposed in this paper.The test results prove that the oil production technology is effective to improve efficiency for oil production plant because it can solve the problems of side wearing,improve energy utilization rate, extend inspection pump and repair well cycle. Linear motor;reciprocating pump;oil production technology Keywords ： 1 采油机理 ，只有当Pe-PwC时，该层才动用。 低渗透油田流体渗流存在启动压力梯度，呈“非达西”渗流 地下抽油机可以改善近井地带的渗流条件。大压差生产提高 特征。由于存在启动压力梯度，将会降低油井生产能力，渗