Pressure operating device for high-pressure gas well

The hydraulic outrigger is connected to the operating platform, the lifting beam is connected to the lifting hydraulic cylinder, the raised cross passes through the lifting beam, and the upper end of the raised cross is connected to the mobile anti-top slip, and the fixed load-bearing slip is connected to the lifting On the high four-way, and located at the lower part of the lifting beam, the fixed top slip is connected with the annular blowout preventer, the upper single ram blowout preventer is connected to the middle of the rising four way, and the three ram blowout preventer is connected to the lifting beam. The lower end of the high four-way, the wellhead four-way is connected to the lower part of the three-ram blowout preventer, one end of the pressure balance pipeline is connected to the wellhead four-way, and the pressure balance pipeline is connected with two gate valves, and the lower single ram blowout preventer The device is connected to the upper part of the three-ram blowout preventer. The annular blowout preventer and two single-ram blowout preventers form a blowout preventer sealing system to control the annulus pressure during the snubbing operation.