The annulus air release valve is installed on top of the hydraulic packer and is a device for controlling the flow of annular gas in the tubing and casing. The annular air release valve is hydraulically opened and closed by spring action. The annular air release valve acts through the hydraulic control line, and the safety valve can be retrieved by setting the packer and controlling the oil pipe installed on the packer. During operation, the control line is pressurized to push the piston to move, the valve of the annular safety valve is opened, the gas is discharged from the oil tubing to the casing, and then the valve is closed by the action of the spring. When the control line cannot provide pressure to control the air release valve, the air release valve has a floating piston. When the

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