Patent ID: 6286596
Filing Date: 2001-09-11
Classification: E21B

Abstract:
A self-regulating lift fluid injection tool comprising:a housing positioned within a mandrel that is substantially concentrically disposed within a production tubing forming a first annulus therebetween, the production tubing disposed within a well casing forming a second annulus therebetween;a control valve operably disposed within the housing for controlling the rate of injection of a lift fluid received from the second annulus into formation fluids being produced through the production tubing and the first annulus;a sensor monitoring the flow rate of the formation fluids through the production tubing and providing a signal indicative thereof;an electronics package communicably coupled to the sensor for generating a control signal in response to the signal received from the sensor; andan actuator communicably coupled to the electronics package for adjusting the position of the control valve to regulate the flow rate of the lift fluid therethrough in response to the control. signal.