Method for controlling a non-flowing well

摘要

A method for controlling the operation of a well which is not flowing, a water injection well or a pumped well comprises utilising a downhole located pressure monitoring device which is operative to monitor a characteristic pressure profile of the well and to respond and generate a triggering output when a significant deviation to the pressure profile is introduced into the well as a control signal to the monitoring device by comparing two separate pressure profiles within a certain time span. The device only generates a triggering output when the same pressure profile is monitored twice within the time span. An actuator is operated to control any required operation of the well when the monitoring device responds to the control signal and generates the triggering output. The signal may be non-predetermined and the device may include a self-learning capability.