有杆泵抽油井采油过程建模  

Modelling of Sucker-rod Pumping Process

作　　者：李翔宇 袁春华 高宪文[2] LI Xiangyu;YUAN Chunhua;GAO Xianwen(Shenyang Ligong University,Shenyang 110159,China;School of Information Science&Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]沈阳理工大学自动化与电气工程学院,沈阳110159 [2]东北大学信息科学与工程学院,沈阳110819

出　　处：《沈阳理工大学学报》2021年第1期12-18,共7页Journal of Shenyang Ligong University

基　　金：辽宁省教育厅科学研究项目计划(LG201930;LG202028)。

摘　　要：针对有杆泵抽油井采油过程机理复杂、高度非线性的特点,以伯努利方程的推广形式描述油井流入动态,基于物质平衡方程描述油套环空液面变化规律,综合考虑有杆泵抽汲过程中泵腔内气体可压缩性、泵腔压力变化、泵阀局部阻力等因素,描述流体进泵运动规律,建立有杆泵抽油井采油过程动态机理模型,采用数值法对模型进行求解。仿真分析与矿场实验表明所建立模型的有效性。In view of the characteristics of the complex mechanism and high nonlinearity for the sucker-rod pumping process, the inflow performance of oil well is described in the generalized form of Bernoulli equation, and the law of annular liquid level change is described based on the material balance equation.The compressibility of the gas in the pump barrel, the changing pressure in the pump barrel, and local resistance of the pump valve are comprehensively considered.The new dynamic model describing the sucker-rod pumping process is set up, which is solved by numerical method.Simulation analysis and field experiments show the effectiveness of the model.

关 键 词：有杆泵 采油过程 机理建模 流入动态 动液面 

分 类 号：N945.12[自然科学总论—系统科学]