小直径抽油泵方案设计与充满度分析  

Scheme Design and Filling Degree Analysis of Small Diameter Oil-well Pump

作　　者：程天才 姜民政[1] 曾宪来 徐书凡 冯子明[1] 张德实 CHENG Tian-cai;JIANG Min-zheng;ZENG Xian-lai;XU Shu-fan;FENG Zi-ming;ZHANG De-shi(School of Mechanics Science & Engineering,Northeast Petroleum University,Daqing 163318,China;No.3 Oil Production Factory,Daqing oilfield co.,Ltd,Daqing 163318,China;Oil Production Engineering Research Institute,Daqing Oilfield Co.,Ltd.,Daqing 163318,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]大庆油田有限责任公司第三采油厂,黑龙江大庆163318 [3]大庆油田有限责任公司采油工程研究院,黑龙江大庆163318

出　　处：《数学的实践与认识》2019年第18期119-126,共8页Mathematics in Practice and Theory

基　　金：国家自然科学基金:变速驱机-杆-泵全耦合动力学行为及优化运行节能机理研究(51774091);东北石油大学研究生创新科研项目:一体化潜油螺杆泵结构设计与性能研究(JYCX_CX04_2018)

摘　　要：在总结现有4类小直径抽油泵优劣的基础上,提出了一种气液置换式小直径抽油泵设计方案,该泵能够降低腔内气液比、提高泵效,更加适应低产井的沉没度低和供液能力差的工况.同时,根据垂直管路气液分布规律对抽油泵泵筒充满度公式进行了修正,结合不同抽油泵的吸排液特点,计算了不同类型抽油泵的泵筒充满度,并在相同工况下对比分析了不同抽油泵的性能.结果表明:气液置换式抽油泵的充满程度较高,表现出更好的综合性能.分析证实了气液置换小直径泵方案的合理性,为小直径抽油泵采油技术的推广提供了依据.Based on the conclusion of the advantages and disadvantages of the 4 kinds of small diameter oil well pumps,the design scheme of a small diameter oil pump with gas-liquid exchange device is put forward,it can reduce the gas-liquid ratio in the pump cavity,improve the pump efficiency and adapt to low submergence depth and poor capacity condition in low production well.Meanwhile,according to the gas-liquid distribution law of vertical pipeline,the formula offilling degree of pump barrel is corrected.Combined with the working characteristics of different pumps,the filling degree of various pumps is calculated,furthermore,the properties of different pumps is compared and analyzed under the same working conditions.The results showed that the small diameter oil pump with gas-liquid exchange device has an excellent comprehensive performance with higher filling degree.This article confirms the rationality of its design scheme and provides the references for the popularization of small diameter pump technology.

关 键 词：低产油井 小直径抽油泵 修正 充满度 低沉没度 

分 类 号：TE933.3[石油与天然气工程—石油机械设备]