Fire on demand barrier valve using wireless signal transmission and spring-forced piston

A system for actuating a downhole tool comprising:

• a conductor extending from a surface location to a first downhole location;
• an acoustic signal transmitter at the first downhole location that is electrically coupled to the conductor;
• an acoustic signal receiver at a second downhole location that is downhole from the first downhole location, wherein the signal receiver is configured to receive acoustic signals from the acoustic signal transmitter;
• a decoder at the second downhole location in electrical communication with the signal receiver;
• a spring-forced actuator at the second downhole location in electrical communication with the decoder;
• a hydraulic boost assembly comprising a low pressure chamber, a check valve, a high pressure chamber, and a pressure relief valve, wherein the check valve provides fluid communication only from the low pressure chamber to the high pressure chamber, wherein the pressure relief valve is in fluid communication with the high pressure chamber and releases a compressible fluid from the high pressure chamber to the low pressure chamber when pressure inside the high pressure chamber is above a pressure threshold;
• and
• the downhole tool at the second downhole location coupled to the spring-forced actuator.

A system for actuating a downhole tool comprising:

• a tubular string extending from a surface location through a first downhole location to at least a second downhole location;
• an electrical conductor extending from the surface location to the first downhole location;
• an acoustic signal transmitter at the first downhole location that is coupled to the conductor and adapted to transmit an acoustic signal down the tubular string;
• a signal receiver at a second downhole location that is downhole from the first downhole location, wherein the signal receiver is configured to receive acoustic signals from the acoustic signal transmitter which are transmitted through the electrical conductor;
• a signal decoder at the second downhole location in signal communication with the signal receiver;
• an actuator at the second downhole location in signal communication with the signal decoder;
• a latch connected to the actuator which releases a spring-forced piston when a specific signal is received at the signal decoder;
• a hydraulic boost assembly which applies additional force to the spring-forced piston in addition to the spring force, wherein the hydraulic boost assembly comprises a low pressure chamber, a check valve, a high pressure chamber, and a pressure relief valve, wherein the check valve provides fluid communication only from the low pressure chamber to the high pressure chamber, wherein the pressure relief valve is in fluid communication with the high pressure chamber and releases a compressible fluid from the high pressure chamber to the low pressure chamber when pressure inside the high pressure chamber is above a pressure threshold;
• and
• the downhole tool at the second downhole location coupled to the spring-forced piston.