Patent ID: 7510001
Filing Date: 2009-03-31
Classification: E21B

Abstract:
1. An apparatus comprising: a downhole tool to be actuated by pressure exerted by well fluid; and a downhole actuation tool, comprising: an inlet port in communication with the well fluid; a pressure sensor for receiving one or more pressure pulses; an electronics module in communication with the pressure sensor, wherein the electronics module is configured to determine whether the pressure pulses are indicative of a command to actuate the downhole tool; a motor in communication with the electronics module, wherein the motor is configured to provide a rotational motion; a coupling mechanism coupled to the motor, wherein the coupling mechanism is configured to translate the rotational motion to a linear motion; and a valve system coupled to the coupling mechanism to control communication between the inlet port and a control line extending to the downhole tool to selectively isolate the downhole tool from the pressure exerted by the well fluid, wherein the valve system is configured to transition to an open phase to communicate the pressure to the downhole tool to actuate the downhole tool.