摘要
综合分析了潜油螺杆泵速度影响因素 ,同时考虑了启动时对电机的过载保护和原油供采平衡关系 ,提出了三级监控策略 ,对螺杆泵转速进行变频调控。控制平台中采用井下温度压力传感器和井上流量计采集相关信号 ,由上位机进行信息处理 ,以RS - 485总线通讯方式对下位机进行分布式在线控制。该系统在油井分布比较密集的区块实现了一机多井监控 ,节约了控制成本 。
Considering speed influence factors, overcurrent protection of the motor during start-up and the oil production-extraction balancing relationship, 3-grade control strategy was put forward to adjust the rotor speed with variable frequency drive. In the monitoring platform,downhole pressure-temperature sensor and surface flowmeter were adopted to pick up corresponding signals. Information was processed in host computer. RS-485 bus was employed to connect the distributed controlled nodes. This system allows for real-time monitoring of the pumping operations for many wells with one computer at the same time. The cost is thus saved. Flexibility and precision of control are improved.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2004年第14期1276-1279,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目 ( 60 172 0 3 4)
辽宁省自然科学基金资助项目 ( 2 0 0 3 2 0 3 1)
