自动抢接止回阀装置液压系统设计及仿真分析

利用井口自动化装置进行石油钻井过程中溢流、井喷时的关井作业是目前井控作业的热点。为了有效减少工作人员操作时间，保证装置的可靠性。提出了1种自动抢接止回阀装置，并将装置的控制系统设计成全液压系统。基于AMEsim对设计的液压系统进行建模以及模拟仿真分析，得到了执行元件（3个液压马达和1个伸缩液压缸）的输出特性曲线，然后与理论计算、设计及选型的执行元件的参数进行对比。研究结果表明:设计的液压回路可以确保自动抢接止回阀装置的整个工作过程正常、稳定的进行。设计的自动抢接止回阀装置的性能基本满足使用要求，具有一定的实用价值。

Hydraulic system design and simulation analysis of automatic snap check valve device

It is a hotspot of well control operation to shut down the wellhead when overflow and blowout occur in the process of oil drilling by using wellhead automation device. In order to effectively reduce the operating time of staff and ensure the reliability of the device, an automatic snap check valve device is proposed in this study, and the control system of the device is designed as a full hydraulic system. The hydraulic system is modeled and simulated based on AMESIM. The output characteristic curves of the actuator(three hydraulic motors and one telescopic hydraulic cylinder) are obtained, and then the parameters of the actuator are compared with those of the theoretical calculation, design and selection. The results show that the designed hydraulic circuit can ensure the normal and stable operation of the automatic snap check valve device. Through the trial application of the designed automatic snap check valve device, its performance can meet the application requirements, and has a certain practical value.