抽油机井杆管偏磨可视化仿真方法研究

摘要/Abstract

摘要：

针对油田现场杆管偏磨严重且缺少偏磨可视化仿真系统的现状，设计了一套抽油机井杆管偏磨可视化仿真系统，实现了井眼轨迹、油管的静态可视化仿真以及抽油杆运动状态、杆管接触状态的动态可视化仿真。采用反求三次B样条曲线控制多边形顶点的方法对井眼轨迹曲线进行了重构；提出了等分衔接圆面法解决以任意三维井眼轨迹作为轴线的油管透明及半剖显示问题；采用实时偏磨点与井眼轨迹数据点相结合的方法，实现了抽油杆动态变形及杆管接触状态可视化仿真功能。通过华北油田现场实际验证，能够清晰地显示杆管偏磨的位置及状态，为抽油机井的杆管偏磨诊断及治理提供了依据。

关键词: 杆管偏磨, 可视化, 三次B样条曲线, 仿真

Abstract:

According to the serious partial-wear of rods and tubes and a lack of visual simulation system in the oil field, we design a visualization simulation system for the partial-wear of pumping well rods and tubes. The static visualization simulation of well trajectories and tubes, and the dynamic visualization simulation of the sucker rod motion states and the contact state of tubes and rods are realized. The method of reversely seeking the control polygon vertex of cubic B-spline curve is used in the well trajectory curve reconstruction. The method of combining circle division is proposed to solve the problem of translucent and semi-section display of tube with arbitrary 3D well trajectory as the axis. The visualization simulation of the dynamic deformation of sucker rods and the contact state between tubes and rods are realized by combining the real time partial-wear points and the well trajectory data points. The actual verification in Huabei Oilfield shows that the system can identify the position and state of tubes and rods’ eccentric-wear clearly, which provides basis for diagnosis and treatment.

Key words: rod and tube partial-wear, visualization, cubic B-Spline curve, simulation

牛文杰1，李辉1，余焱群1，孙保光1，郭吉民2，白永涛1. 抽油机井杆管偏磨可视化仿真方法研究[J]. 计算机工程与科学.

NIU Wen-jie1，LI Hui1，YU Yan-qun1，SUN Bao-guang1，GUO Ji-min2，BAI Yong-tao1. A visualization simulation method for the partial-wear of pumping well rods and tubes [J]. Computer Engineering & Science.

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