不压井修井机撬装式液控系统研制

发布时间：2018-01-11 11:35

本文关键词：不压井修井机撬装式液控系统研制　出处：《沈阳工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着油田开采技术的逐渐成熟,更环保、更快捷的开采方式越来越得到重视。沈阳工业大学自主研发了不压井修井机撬装式液控系统,用于修井作业。该液控系统与井架配合,可以在油(汽)井口带压情况下进行修井作业。不压井修井机撬装式液压控制系统是将所有液压、电器、操作手柄等部件安装在一个可移动的液控房中的设备。该液控设备可由汽车运送到油田井口附近完成修井作业。操作人员是在液控房中完成举升缸的升降、防喷器的开关及其它一些辅助性的操作工作。在介绍了不压井修井机总体设计要求和指标的基础上,将液控系统分成液压方案、撬装式液控房方案和辅助电器控制系统以及检测反馈单元方案三个部分进行分析、设计。液压方案设计中介绍了液压设计思想,给出了液压设计原理图以及元件的选型方案,讨论了例如液压缸互锁、比例变量泵的防爆实现方式等问题的解决方法。液控房方案设计中讨论了液控房尺寸选择,以及设备总体布置方式。辅助电器控制系统以及检测反馈单元方案讨论了设备电器系统设计、选型,以及接箍检测系统的研制。最后针对系统中举升缸举升速度自动控制系统的建立进行数学模型,分析实际情况下,各部分的传递关系并推导出传递函数,进而推导比例变量泵控系统数学模型。利用MATLAB及Simulink对数学模型进行研究、仿真及优化。通过观察速度输出曲线及系统伯德图,可以看出,控制系统稳定性较好。
[Abstract]:With the maturation of oilfield production technology, more and more attention has been paid to the more environmentally friendly and faster way of exploitation. Shenyang University of Technology has independently developed the pried hydraulic control system of the workover machine. It is used in workover operation. The hydraulic control system and Derrick can be used for workover under the condition of oil (steam) wellhead pressure. A device installed in a movable hydraulic control room with operating handles and other components. The hydraulic control equipment can be transported by car to the oil field near the well head to complete the workover. The operator completes the lifting and lifting of the cylinder in the hydraulic control room. The switch of blowout preventer and other auxiliary operation work. The hydraulic control system is divided into hydraulic scheme on the basis of introducing the general design requirements and indexes of the workover machine. The hydraulic design idea is introduced in the design of the pry hydraulic control room, the auxiliary electrical apparatus control system and the test feedback unit. The hydraulic design schematic diagram and the selection scheme of the components are given. For example, the interlocking of the hydraulic cylinder is discussed. The methods to solve the problems such as the explosion-proof way of proportional variable pump and the selection of the size of the hydraulic control room are discussed in the design of the hydraulic control room. As well as the general layout of the equipment, the auxiliary electrical control system and the test feedback unit scheme discussed the design and selection of the equipment electrical system. And the development of the hoop detection system. Finally, the mathematical model of the automatic control system of lifting speed of lifting cylinder in the system is carried out, and the transfer relation of each part is analyzed and the transfer function is deduced. Then the mathematical model of the proportional variable pump control system is deduced. The mathematical model is studied, simulated and optimized by using MATLAB and Simulink. The velocity output curve and the system Byrd diagram are observed. It can be seen that the stability of the control system is good.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE935

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