Anaerobic water storage wellhead for low-water-yield coal-bed gas well

• Main Authors: CHEN LINYONG, ZHAO NA, GUAN JIADONG, WANG MEILIN, ZHAO HAN, REN HENGXING, GUO XIN
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model belongs to the field of coal mines, and provides an anaerobic water storage wellhead for a low-water-yield coal-bed gas well, which comprises an overflow pipe and a water storage pipe positioned below the overflow pipe, the overflow pipe is convex upwards, the water storage pipe is concave downwards, and the two ends of the overflow pipe and the two ends of the water storage pipeare communicated with each other to form a structure shaped like a Chinese character'hui '; the main water inlet and the main water outlet are respectively positioned on two sides of the concentric-square-shaped structures of the overflow pipe and the water storage pipe and are communicated with the concentric-square-shaped structures; a front overflow valve lower than the main water inlet is arranged at the end, close to the main water inlet, of the water storage pipe, and a rear overflow valve lower than the main water outlet is arranged at the end, close to the main water outlet, of the water storage pipe. The dev