抽油机不停机间歇采油技术研究与应用  

Research and Application of Non-stop Intermittent Production for Pumping Units

作　　者：巩宏亮[1] 戚兴 常瑞清[1] 王洋[1] 富源 侯宇[1] 李金源 刘成林 陈云龙 

机构地区：[1]大庆油田采油工程研究院 [2]哈尔滨索菲电气技术有限公司

出　　处：《石油石化节能》2017年第10期3-6,共4页Energy Conservation in Petroleum & PetroChemical Industry

摘　　要：常规间歇采油存在工人劳动强度高、管理难度大、工作制度难以执行到位等问题。为此,提出了抽油机不停机间歇采油技术,采用长周期集中式间歇采油转变成多次短周期分散式间歇采油的策略,开展连续整周运行与低能耗摆动运行相结合的方式,将常规间抽停机运行改为曲柄低能耗小角度摆动运行;以井下柱塞保持不动为前提,杆柱最大弹性变形为基础,设计出曲柄最大摆动范围,确保地面设备不停机安全摆动,井下泵停抽的不停机短周期间抽工艺。现场应用表明,与常规间抽相比,系统效率提高4.4个百分点,百米吨液单耗降低28.7%,日节电22.14 k Wh,对低产井高效开发具有重要意义。The normal intermittent production does exist some problems, for example, high labor intensity, great difficulty in the management and difficulty to implement the work system, etc. Hence,the non-stop intermittent production for pumping units is proposed. It adopts a strategy which transforms the long-cycle concentrated intermittent pumping into several short-period intermittent pumping, and used a combination of the continuous pumping and the low-energy swing operation, it can change the long shaft stoppage part of intermittent pumping into low-energy swing operation,meanwhile, the maximum swing range of crank is designed based on the maximum elastic deformation of rod string under the premise that plunger piston is stationary, ground equipment does nonstop swing operation at the same time. The field application shows that, the pump efficiency improve by 4.4%, the power consumption by lifting one ton of liquid to 100 reduce 28.7%, saving 22.14 k Wh every day compared with the normal intermittent production. It will be of great significance for the effective development of low-yield well.

关 键 词：抽油机 不停机间歇采油 间抽制度 曲柄摇摆 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]