雷家稀油区块油井防偏磨优化设计技术研究

发布时间：2018-07-23 21:13

【摘要】：随着高升采油厂雷家地区稀油区块水平井、大斜度井、高含水井、低产井等类型油井的日渐增多,有杆泵井管杆偏磨问题已经成为困扰油井生产的主要问题之一。本文对管杆偏磨机理、雷家地区稀油区块油井杆管偏磨原因进行了分析,确定了影响杆管偏磨的主要因素。本文对固体润滑技术、固体润滑膜成型方法进行研究,获得了质量稳定可靠的固体润滑膜；综合考虑现用防偏磨器优缺点,优选了防偏磨工具。本文建立了油井抽汲液在抽油杆外壁的压力分布数学模型,给出相应的数值计算方法,并对压力分布规律进行分析；给出狗腿度的计算公式；给出中和点位置的数学模型及相应数值计算方法；给出直井和斜井的挠度计算公式；由抽油杆的受力分析及狗腿度、挠度的计算公式分析油井的偏磨机理,并给出油井防偏磨优化的数值计算方法；分析不同产液量、含水率和井斜角对大斜度井偏磨的影响。在理论研究的基础上,由抽油杆受力的计算公式及抽油杆挠度的计算公式,并根据油井防偏磨优化数值计算方法编写了“油井防偏磨优化设计”程序。该程序在中文Windows2000操作系统下以Visual Basic 6.0为开发平台用Basic语言编写完成,包括计算法向力、计算狗腿度、中和点位置和偏磨优化四个模块。该程序既能满足现场生产需要,又有良好的操作性。
[Abstract]:With the increasing number of horizontal wells, high inclination wells, high water cut wells, low production wells and other types of oil wells in Leicia area of Gaosheng Oil production Plant, the problem of rod pump pipe rod partial wear has become one of the main problems puzzling the production of oil wells. In this paper, the mechanism of pipe rod bias wear and the causes of rod and pipe bias wear in rare oil block oil wells in Lejia area are analyzed, and the main factors influencing the rod and pipe eccentric wear are determined. In this paper, the solid lubrication technology and the forming method of solid lubrication film are studied, and the stable and reliable solid lubrication film is obtained. In this paper, the mathematical model of pressure distribution of swabbing fluid in oil well on the outer wall of sucker rod is established, the corresponding numerical calculation method is given, the law of pressure distribution is analyzed, and the formula of dog leg degree is given. The mathematical model of the position of neutralization point and the corresponding numerical calculation method are given, and the formulas for calculating deflection of vertical well and inclined well are given, and the mechanism of bias wear of oil well is analyzed by the force analysis of sucker rod and the calculation formula of dog's leg and deflection. The numerical calculation method for anti-bias wear optimization of oil wells is given, and the effects of different fluid production, water cut and well inclination angle on bias wear of large deviated wells are analyzed. On the basis of theoretical research, the program of "optimum design of anti-bias wear of oil wells" is compiled by calculating formula of sucker rod force and deflection of sucker rod, and according to the numerical calculation method of anti-bias wear optimization of oil well. The program is programmed on the platform of Visual Basic 6.0 under Chinese Windows2000 operating system with Basic language, including four modules: normal force calculation, dog leg degree calculation, neutralization point position and bias wear optimization. This procedure can not only meet the field production needs, but also have good operability.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE933.2

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