目的 设计油井套管脉冲电流阴极保护远程监控系统,确保脉冲电流阴极保护系统安全运行状态,实现集约化、数字化管理。 方法 基于二次逆变及 GPRS 无线通信技术,设计采用 C8051F020 单片机为控制核心的脉冲电源系统,并通过 HAR306 模块实现 GPRS 无线数据传输,结合远程监控中心对油井套管脉冲电流阴极保护过程进行实时监控。 结果 该系统具有投入成本低、组网方便、数据传输稳定可靠、人机界面友好、功能强大等优点,可以实现油井套管脉冲电流阴极保护的集约化、数字化、智能化管理。 结论 采用二次逆变方法设计油井套管脉冲电流阴极保护专用电源主电路,在此基础上应用 GPRS技术设计脉冲电流阴极保护远程无线监控系统的方案是可行的。

Objective To design a remote monitoring system of pulsed current cathodic protection for oil well casings,in order to ensure the operation safe and achieve intensive, digital management with cathodic protection. Methods Based on the secondary inversion and GPRS technology, the microcomputer of C8051F020 was used as the control core for the pulse power supply system and the GPRS module of HAR306 for wireless data transmission,combining with remote monitoring center, real-time monitoring for oil well casing pulsed current cathodic protection was realized. Results The system had advantages such as low cost,powerful network building,friendly interface,powerful function and reliable data transmission,which could realize the digital, intensive and intelligent management for pulse current cathodic protection. Conclusion The main circuit of pulsed current power for well casing cathodic protection was designed using the second inverter method,on this basis,the scheme of designing wireless remote monitoring system using the GPRS technology was feasible.