电液式智能桥塞控制系统研究

桥塞的坐封是决定桥塞性能的一项关键技术,传统的坐封控制方式通过剪断桥塞坐封机构与密封机构之间的张力棒以完成胶筒坐封,但只有将销钉剪断后才可起出坐封工具。所以传统桥塞只能坐封一次,并且存在坐封准确性低、效率低等缺点。设计一种智能桥塞控制系统,PLC作为智能桥塞地面控制中心,采用模数转换模块对套管接箍模拟电压信号进行数字量的转化后传输给PLC进行控制,并且结合人机界面控制智能桥塞在套管内坐封与解封[1]。电液式智能桥塞系统实现多次重复坐封的功能,与传统桥塞相比,提高了石油开采效率。

In this paper,an intelligent bridge plug control system is designed.PLC is used as the intelligent bridge plug ground control center.The analog-to-digital conversion module is used to digitally convert the casing voltage analog voltage signal to the PLC for control,and combined with human-machine interface control.The intelligent bridge plug is set and unsealed in the casing[1].The electro-hydraulic intelligent bridge plug system realizes the function of repeatedly setting the seal.