潜油直线电机举升功图测试系统研制

发布时间：2018-04-21 17:41

本文选题：功图 + 潜油直线电机　；参考：《哈尔滨理工大学》2015年硕士论文

【摘要】：潜油直线电机作为一种新型的采油技术，目前还处于研发阶段，以大庆为例，，先导井试用中出现了有待进一步完善的现象，存在一定的不适应性。分析功图是判断抽油机井工况的基本方法。目前生产中所投入使用的示功仪为地面示功仪，而潜油直线电机举升工艺是一种无杆举升工艺，现有地面示功仪无法满足其测试要求。因此，本文针对潜油直线电机举升工艺开发了一套井下泵功图的直接测试系统，可获取泵况的一手资料，为进一步研究潜油直线电机的工作状态提供重要的数据支持。本文首先分析了潜油直线电机抽油工艺原理，建立了直线电机抽油机悬点动力分析数学模型，提出了直线电机抽油机的悬点载荷大小的计算方法。确定该举升工艺动态参数测试的工程难点后，提出采集系统总体设计方案。示功仪采用存储短接方式设计其钢体，采用载荷传感器直接测量运动负荷，采用加速度传感器通过二次积分间接测量运动位移，从而构成完整功图，核心处理器为32位STM32F103RE。上位机软件采用C#语言开发，集成了数据提取、数据处理、图形化显示以及保存功能。所开发的示功仪系统投入使用后，有效获取了潜油直线电机举升工艺的井下泵功图。通过分析可知，原有工艺泵启动瞬间负荷过大，导致运行不平稳等现象。对驱动系统的启动进行优化设计，提供了系统运行的平稳性，并可定量的减小整机功率，间接提高效率。
[Abstract]:As a new type of oil recovery technology, the submersible linear motor is still in the research and development stage. Taking Daqing as an example, there is a phenomenon to be further improved in the pilot well trial, and there is some inadaptability. Power diagram analysis is the basic method to judge the working condition of pumping well. At present, the dynamometer used in production is a ground dynamometer, but the lifting process of submersible linear motor is a kind of rodless lifting process, and the existing ground dynamometer can not meet its test requirements. Therefore, this paper develops a direct testing system of pump power diagram for the lifting process of submersible linear motor, which can obtain the primary data of pump condition and provide important data support for further study on the working state of submersible linear motor. In this paper, firstly, the principle of submersible linear motor pumping technology is analyzed, the mathematical model of suspension point dynamic analysis of linear motor pumping unit is established, and the calculation method of suspension point load of linear motor pumping unit is put forward. After determining the engineering difficulty of the dynamic parameter test of the lifting process, the overall design scheme of the collection system is put forward. The dynamometer designed its steel body by means of short storage connection, used load sensor to measure moving load directly, and used acceleration sensor to measure motion displacement indirectly through quadratic integration, thus forming complete work diagram. The core processor was 32 bit STM32F103RE. The upper computer software is developed with C # language, which integrates the functions of data extraction, data processing, graphical display and storage. After the developed indicator system is put into use, the underground pump power diagram of the submersible linear motor lifting process is obtained effectively. Through analysis, the original process pump start-up load is too large, resulting in unsteady operation and other phenomena. The optimal design of the drive system provides the stability of the system operation, and can reduce the power of the whole machine quantitatively and indirectly improve the efficiency.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE933.1

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