椭圆速率拖动的抽油杆应力特征分析  

Analysis of stress characteristics of sucker rod dragged by elliptical speed

作　　者：段志刚[1] 王志[1] 司志梅[1] 陈勇殿 丁燕[3] DUAN Zhigang;WANG Zhi;SI Zhimei;Chen Yongdian;Ding Yan(Petroleum Engineering Technology Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China;No.1 Oil Production Plant of Jiangsu Oilfield,SINOPEC,Zhenwu 225265,China;Exploration and Development Department of Jiangsu Oilfield,SINOPEC,Yangzhou 225009,China)

机构地区：[1]中国石化江苏油田分公司石油工程技术研究院,江苏扬州225009 [2]中国石化江苏油田分公司采油一厂,江苏真武225265 [3]中国石化江苏油田分公司勘探开发部,江苏扬州225009

出　　处：《复杂油气藏》2020年第3期86-90,共5页Complex Hydrocarbon Reservoirs

摘　　要：柔性控制技术作为新兴技术,可以根据系统需要提供相应的驱动功控制,由此可以最大限度提高系统的能源利用率。在常规采油过程中,由于启动所需要的扭矩较大,因此配置的电机功率也会相应增大,在正常生产时,会出现供电设备输出的功率与用电负荷不成比例、导致能耗浪费的现象。本案例通过椭圆速率驱动代替圆驱动的方式来解决这一问题,并对椭圆速率驱动下的抽油杆工作行为及螺纹连接处的应力特征进行了分析,对其可行性和相对于常规圆速率驱动的优越性进行了评估,并通过在江苏油田W5-3井的成功应用,证明了该方案的优越性。As an emerging technology,flexible control technology can provide corresponding drive power control according to the needs of the system,thereby maximizing the energy efficiency of the system.In the conventional oil production process,the power of the configured motor will also be increased accordingly due to the large torque required for staring.During normal production,the power output of the power supply equipment will be out of proportion to the electrical load,resulting in a waste of energy consumption.This case uses an elliptical velocity drive instead of a circular drive to solve this problem.The working behavior of sucker rods under elliptical velocity drive and the stress characteristics of threaded connections are analyzed,and its feasibility and the superiority relative to conventional circular velocity drive are evaluated.The successful application in well W5-3 of Jiangsu Oilfield has proved the superiority of the scheme.

关 键 词：采油 柔性控制技术 抽油杆 椭圆驱动 应力 

分 类 号：TE933[石油与天然气工程—石油机械设备]