Auxiliary pressurizing device for coal bed gas exploitation well drilling

• Main Authors: CHEN SHAOBO, ZHANG MENGLE, HAO DENGFENG, LI XUEBIN, LYU BAOGUANG, SUN PENG, JIN GUANGJUN, LI ZHIBO
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: ALARM SYSTEMS; 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; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS

The utility model relates to the technical field of resource exploitation, and discloses an auxiliary pressurizing device for coalbed methane exploitation well drilling, the auxiliary pressurizing device comprises a tubular column and a pressurizing box, the tubular column is located below the pressurizing box, a round cover is fixedly inserted into the upper end of the pressurizing box, a round plate is movably arranged on the lower side of the interior of the round cover, and a piston pad is fixedly connected to the upper end of the round plate; a T-shaped rod is fixedly connected to the upper end of the circular plate, a connecting plate is fixedly arranged in the circular cover, the rod wall of the T-shaped rod is in sliding connection with the side wall of the connecting plate, and an upward jacking spring is jointly and fixedly arranged between the lower end of the horizontal portion of the T-shaped rod and the upper end of the connecting plate. According to the device, the pressurization peak can be wa