Various technologies described herein involve apparatuses for actuating a downhole tool. In one implementation, the apparatus may include a pressure sensor for receiving one or more pressure pulses and an electronics module in communication with the pressure sensor. The electronics module may be con
Various technologies described herein involve apparatuses for actuating a downhole tool. In one implementation, the apparatus may include a pressure sensor for receiving one or more pressure pulses and an electronics module in communication with the pressure sensor. The electronics module may be configured to determine whether the pressure pulses are indicative of a command to actuate the downhole tool. The apparatus may further include a motor in communication with the electronics module. The motor may be configured to provide a rotational motion. The apparatus may further include a coupling mechanism coupled to the motor. The coupling mechanism may be configured to translate the rotational motion to a linear motion. The apparatus may further include a valve system coupled to the coupling mechanism. The valve system may be configured to actuate the downhole tool when the valve system is in an open phase.
대표청구항▼
What is claimed is: 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 comm
What is claimed is: 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. 2. The apparatus of claim 1, wherein the command to actuate the downhole tool comprises a command to activate the motor. 3. The apparatus of claim 1, wherein the valve system comprises a lead screw coupled to coupling mechanism. 4. The apparatus of claim 3, wherein the coupling mechanism is configured to linearly move the lead screw upon receipt of the rotational motion from the motor. 5. The apparatus of claim 3, wherein the valve system comprises: a sealing plug disposed inside a plug port; and a pin coupled to the lead screw, wherein the pin is configured to confine the sealing plug inside the plug port. 6. The apparatus of claim 5, wherein the sealing plug and the pin are configured to form a seal with the plug port. 7. The apparatus of claim 1, wherein lead screw is configured to withdraw the pin from the plug port to allow the sealing plug to be pushed out of the plug port by hydraulic pressure, when the linear motion is applied to the lead screw. 8. The apparatus of claim 5, wherein the valve system further comprises: a valve channel in communication with the plug port; and a valve chamber in communication with the valve channel. 9. The apparatus of claim 8, wherein the valve system further comprises a pilot piston disposed inside the valve chamber and is configured to linearly move within the valve chamber. 10. The apparatus of claim 9, wherein the valve system further comprises hydraulic oil disposed between the sealing plug and the pilot piston. 11. The apparatus of claim 10, wherein the hydraulic oil is configured to prevent the pilot piston from moving when external pressure from well fluid is applied against the pilot piston. 12. The apparatus of claim 10, wherein the hydraulic oil is configured to flow out of the plug port once the sealing plug is pushed out of the plug port. 13. The apparatus of claim 9, wherein the valve system further comprises: an inlet port in communication with well fluid; and a control line configured to facilitate communication between the inlet port and a downhole tool, when the motor is activated by the command to actuate the downhole tool. 14. The apparatus of claim 13, wherein the pilot piston is configured to move toward the sealing plug to open communication between the inlet port and the control line, when the valve system is in the open phase. 15. An apparatus for actuating a downhole tool, comprising: 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 configured to actuate the downhole tool when the valve system is in an open phase, wherein the valve system comprises: a lead screw coupled to the coupling mechanism; a sealing plug disposed inside a plug port; a pin coupled to the lead screw, wherein the pin is configured to confine the sealing plug inside the plug port when the valve system is in a closed phase; a valve channel in communication with the plug port; and a compression spring disposed inside the valve channel. 16. The apparatus of claim 15, wherein the valve system further comprises a floating pin disposed between the sealing plug and the compression spring. 17. The apparatus of claim 16, wherein the compression spring is configured to push the floating pin against the sealing plug. 18. The apparatus of claim 16, wherein the lead screw is configured to withdraw the pin from the plug port to allow the sealing plug to be pushed out of the plug port by hydraulic pressure and the compression spring pushing the floating pin against the sealing plug, when the linear motion is applied to the lead screw. 19. An apparatus for actuating a downhole tool, comprising: 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 configured to actuate the downhole tool when the valve system is in an open phase, wherein the valve system comprises: an atmospheric chamber; a vent port in communication with the atmospheric chamber; a lead screw coupled to the coupling mechanism; an o-ring disposed inside the atmospheric chamber; and a sealing pin disposed between the lead screw and the vent port through the o-ring such that the sealing pin and the o-ring form a seal with the vent port, when the valve system is in a closed phase. 20. The apparatus of claim 19, wherein the sealing pin is disposed through the o-ring to form the seal. 21. The apparatus of claim 19, wherein the lead screw is coupled to a nut and is configured to rotate within the nut. 22. The apparatus of claim 21, wherein the coupling mechanism is configured to retract the lead screw from the nut upon receipt of the rotational motion from the motor. 23. The apparatus of claim 22, wherein the sealing pin is configured to withdraw from the o-ring as the lead screw is retracted from the nut. 24. The apparatus of claim 22, wherein the valve system further comprises: a valve chamber in communication with the vent port; a pilot piston disposed inside the valve chamber; hydraulic oil disposed between the o-ring and the pilot piston; an inlet port in communication with well fluid; and a control line configured to facilitate communication between the inlet port and a downhole tool, when the motor is activated by the command to actuate the downhole tool. 25. The apparatus of claim 24, wherein the hydraulic oil is configured to flow out of the vent port as the sealing pin is withdrawn from the o-ring. 26. The apparatus of claim 25, wherein the pilot piston is configured to move toward the o-ring as the hydraulic oil flows out of the vent port to facilitate communication between the inlet port and the control line.
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