连续油管注入头液压同步控制系统设计

为了解决连续油管注入头闭式驱动系统的双液压马达输出不同步问题，设计了一种用于注入头马达液压同步控制系统。该系统可对同步马达转速、扭矩、压力等性能参数与驱动马达进行匹配，通过同步控制系统的强制同步迫使两侧液压马达输出转速一致，最终达到实现双液压马达同步运转的目的。模拟油田现场实际工况，对配备液压同步控制系统的注入头进行了动载试验，注入头双侧马达同步性大幅度提高，链条驱动系统低速同步运转平稳。试验结果表明，注入头液压同步控制系统提高了注入头运行的可靠性，降低了注入头工作中对油管造成损伤的风险，提升了连续油管作业设备系统运行的稳定性。

Design of Hydraulic Synchronous Control System for Coiled Tubing Injection Head

In order to solve the out of sync problem of coiled tubing injection head closed drive system double hydraulic motor, a kind of injection head hydraulic motor synchronous control system was designed. The system matched the synchronous motor speed, torque, pressure and other performance parameters with the driving motor, the synchronous control system forced the output speed of both sides of hydraulic motor to be consistent, finally achieved the purpose of synchronous operation of hydraulic motor. Simulated oil field actual working condition, the dynamic load test was conducted for injection head equipped with hydraulic synchronous control system, the synchronous operation of injection head both sides motor was greatly improved, the chain drive system run smoothly at low speed. The test results showed that the injection head hydraulic synchronous control system improved the reliability of the injection head operation, reduced the damage risk of injection head to tubing, and improved the stability of coiled tubing equipment system running.