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定向井有杆抽油系统抽汲参数的优化设计和仿真模型
引用本文:董世民,王胜杰,卢东风,姬生柱,侯维前,王希涛.定向井有杆抽油系统抽汲参数的优化设计和仿真模型[J].石油学报,2008,29(1):120-123.
作者姓名:董世民  王胜杰  卢东风  姬生柱  侯维前  王希涛
作者单位:1. 燕山大学机械工程学院, 河北秦皇岛, 066004;2. 大庆油田第八采油厂, 黑龙江大庆, 163514
基金项目:中国石油天然气集团公司资助项目
摘    要:综合分析了复杂结构定向井井眼轨迹、杆管间摩擦力、抽油机悬点运动规律、抽油泵气体影响或供液不足的井下实际边界条件对抽油杆柱轴向振动的影响,建立了定向井抽油杆柱轴向振动仿真模型,利用该模型实现了悬点与泵示功图的自动快速仿真。根据仿真示功图,建立了定向井有杆抽油系统效率的仿真模型。系统分析了定向井井眼轨道对杆管摩擦力、摩擦功率及系统效率的影响。综合考虑油井产能协调、油井配产、抽油机承载能力、抽油杆柱强度与电动机功率利用率等约束条件,以系统效率最高为目标函数,提出了定向井抽汲参数优化设计的计算机仿真方法,开发了定向井有杆抽油系统抽汲参数优化设计的计算机软件。现场试验结果表明,该软件系统具有较高的仿真精度。

关 键 词:定向井  有杆抽油系统  抽汲参数  优化设计  仿真模型  
文章编号:0253-2697(2008)01-0120-04
收稿时间:2007-01-25
修稿时间:2007-08-06

Simulation models for optimization design of suction parameters for rod pumping system in directional wells
DONG Shimin,WANG Shengjie,LU Dongfeng,JI Shengzhu,HOU Weiqian,WANG Xitao.Simulation models for optimization design of suction parameters for rod pumping system in directional wells[J].Acta Petrolei Sinica,2008,29(1):120-123.
Authors:DONG Shimin  WANG Shengjie  LU Dongfeng  JI Shengzhu  HOU Weiqian  WANG Xitao
Affiliation:1. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China;2. The Eighth Oil Production Plant, PetroChina Daqing Oilfield Limited Company, Daqing 163514, China
Abstract:The factors affecting the axial vibration of pumping rod string, including the directional well track, the friction force between pumping rod string and tubing, the polished rod movement of pumping unit and complex boundary conditions of pump were analyzed. The simulation models for axial vibration of rod string in directional wells were set up. The dynamometer cards for the polished rod of pumping unit can be automatically and rapidly simulated by using this model. On the basis of simulated dynamometer cards, the mathematical models for simulating efficiency of pumping system were set up. By simulating the dynamic parameters of rod pumping system in the directional wells, the effects of well track on friction force between rod string and tubing, friction power and the efficiency of rod pumping system in the directional wells were analyzed. The constraint conditions such as the accordance condition of output of oil wells, programming output, bearing capacity of pumping unit, strength condition of rod string and utilization ratio of motor’s power were integrated. The maximum efficiency of rod pumping system was taken as the objective function, and the simulating and optimizing method of the suction parameters in the directional wells was proposed. The corresponding computer software was developed. The application to field showed that the computer software had high simulating accuracy 
Keywords:directional wells  rod pumping system  suction parameters  optimization design  simulation models
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