Patent ID: 6394181
Filing Date: 2002-05-28
Classification: E21B,H04M

Abstract:
A self-regulating injection tool comprising: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 mandrel that controls the rate of injection of a first fluid received from the second annulus into a second fluid being produced through the production tubing and the first annulus; a sensor that monitors the flow rate of the second fluid through the production tubing and provides a signal indicative thereof; an electronics package communicably coupled to the sensor that generates a control signal in response to the signal received from the sensor; and an actuator communicably coupled to the electronics package that adjusts the position of the control valve to regulate the flow rate of the first fluid therethrough in response to the control signal.