分层采油智能开关器控制系统开发与应用

Development and application of intelligent switch control system for layered oil production

分层采油是油田高含水阶段解决层间和平面矛盾、实现剩余油挖潜的重要手段,其核心工具智能开关器在井下高温高压环境下存在有效寿命短、动作不可靠等问题。采用单片机控制和低功耗模式,对智能开关器控制系统电源模块、电机驱动模块及压力监测模块的关键器件进行了优选和电路设计,开发了定时轮采、遥控调层及压力监听控制程序,实现了智能开关器的定时轮采控制和压力信号调层控制功能。选用VB6.0编程语言开发了一套上位人机界面,实现了通信、参数设置、数据回放等功能。室内试验和现场应用表明,在高温高压环境下,智能开关器定时轮采和遥控调层性能稳定可靠,有效寿命达到1年以上,满足了智能分层采油工艺的需要。

Layered oil production is an important means to solve the interlayer and plane contradiction and to tap the potential of remaining oil in high water-cut stage for oilfields. The intelligent switch is one of the core tools for layered oil production, while under high-temperature and high-pressure environment, the effective life of the intelligent switch is short, and the function of the intelligent switch acts unreliably. Using single chip control and low power consumption mode, the key components of the power supply module,motor drive module, and pressure monitoring module of the intelligent switch control system were optimized, and the circuit was designed. Furthermore, the control programs for timing alternating production, remote layer adjustment, and pressure monitoring were developed, which realized control functions, such as timing alternating production and pressure signal layer adjustment, for the intelligent switch. By using VB6.0 programming language, a set of man-machine interface was developed, realizing the functions of communication, parameter setting, and data playback. Indoor tests and field applications show that in the high-temperature and high-pressure environment, the timing alternating production and remote layer adjustment of the intelligent switch are stable and reliable,with effective life more than 1 year, which meets the needs of intelligent layered oil production process.