The Weatherford WellPilot ONE controller/remote terminal unit (RTU) provides asset control, automation, and optimization for the entire field and enables seamless transitions throughout all production and lift phases, which reduces the total cost of ownership. Typically, automating a field requires operators to use an array of different RTUs or controllers that adjust well operations while they collect, store, and transfer near-real-time data. With the WellPilot ONE controller, operators will be able to improve wellsite efficiency by controlling multiple application-specific operations precisely. Initially installed to monitor flowing wells and to automate the full production facility, the controller can transition to different forms of lift as well conditions change. The controller can also simultaneously handle multiple tasks for multiple wells, and it is capable of monitoring and controlling various forms of artificial lift at once. Other capabilities include oil, gas, and water measurement; tank-level monitoring; well testing; hazardous-substance monitoring; and well control and shutdowns. The controller includes built-in logic for electronic flow measurement, process control, and every form of artificial lift and offers scalability through its unlimited capacity for input/output expansion modules.