Remote pressure control adjusting emergency cutoff device of gas well and application method of device

• Main Authors: ZHAO ZHENGYAN, CHEN YONG, XIAO SHUQIN, XU WENLONG, YANG XUDONG, WEI YAMING, LIU SHUANGQUAN, BAI XIAOHONG, TIAN WEI, WANG XIONGXIONG
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2020
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention provides a remote pressure control adjusting emergency cutoff device of a gas well and an application method of the device. The device comprises an adjusting mechanism, an execution mechanism and a detection mechanism. The adjusting mechanism is connected with a valve rod of a ball valve and is used for adjusting the flow. The execution mechanism is connected with a connecting shaftball body of the ball valve. The detection mechanism is connected with the execution mechanism and is used for detecting pressure, and the execution mechanism is controlled according to the pressure to open or close the ball valve. The adjusting mechanism, the execution mechanism and the detection mechanism are electrically connected with a remote control system. According to the remote pressure control adjusting emergency cutoff device of the gas well, the valve rod is driven by the adjusting mechanism to move up and down, the annular open area is changed, pressure adjusting is achieved to control the pressure of a n