基于Profinet与S7-1200 PLC的RN254型铁钻工电控系统的研发与应用

Research and application of RN254 roughneck electrical control system based on Profinet and S7-1200 PLC

摘要:

RN254型铁钻工是勘探技术所自主研发的井口自动化拧卸设备，可在3.5~10 in范围内安全、快速、平稳地实现钻具连接、上卸扣操作。基于对一般钻井井台自动化设备集成应用和功能需求特点分析，以井台设备模块化、集成化为设计思想，结合RN254型铁钻工的作业工况、机械结构及液压系统，设计了RN254型铁钻工电控系统。该系统以S7-1200PLC为控制核心、Profinet为通讯方式，将铁钻工所有元件有序地整合到一起，实现了动作单步控制或多个动作顺序组合的一键自动控制。经野外实际生产试验及厂内联合调试，RN254型铁钻工各动作执行良好，主机控制稳定有序，验证了电控系统的可行性及可靠性，提高了孔口作业自动化程度和作业安全性，为后续钻井智能化装备研发提供了参考。

Abstract:

RN254 Roughneck is an independently developed wellhead automated unscrewing equipment by the Exploration Technology Institute. It can safely， quickly， and smoothly connect and detach drilling tools within a range of 3.5 “to 10”. Based on the analysis of the integrated application and functional requirements of general drilling platform automation equipment， the RN254 roughneck electronic control system was designed with the design concept of modularization and integration of platform equipment， combined with the operating conditions， mechanical structure， and hydraulic system of the RN254 roughneck. The system uses S7-1200 PLC as the control core and Profinet as the communication method， integrating all components of the roughneck in an orderly manner， achieving one key automatic control of single step action or multiple action sequence combinations. Through actual field production tests and joint debugging in the factory， the RN254 roughneck has performed well in all actions， with stable and orderly control of the main engine， verifying the feasibility and reliability of the electrical control system， improving the automation level and safety of drilling operations， and providing reference for the development of intelligent drilling equipment in the future.