Natural gas extraction well plugging device

• Main Author: LIANG JUNBAO
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• 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; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model discloses a natural gas extraction well plugging device, which belongs to the technical field of natural gas extraction and comprises a plugging column, two placing grooves are arranged on the surface of the plugging column, air bags are arranged in the placing grooves, a connecting pipe is arranged in the middle of the plugging column, and a sealing cover is arranged at the upper end of the connecting pipe. The top plate is arranged on the upper side of the plugging column through a conical rod, the conical rod is inserted into the ground until the lower end of the fixing plate is in contact with the ground, a gas pipe is arranged on one side of the connecting pipe, a gas flow monitoring assembly is arranged at the upper end of the gas pipe, and a pressing assembly is arranged on the upper side of the plugging column. Then the threaded rod is driven to rotate through the rotating handle, the threaded rod rotates to drive the fixing frame to move downwards, the fixing frame moves to drive th