Gas lift reverse circulation hole cleaning device

• Main Authors: LU WEIAN, MENG XIANGFENG, CHEN QUANLONG, SHANG CHUNHUI, YUE KUISONG, ZHANG WENHUA
• Format: Patent
• Language: Chinese; English
• Published: 18.11.2022
• 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

The utility model discloses an air lift reverse circulation hole cleaning device which comprises an air pipe and a guide pipe which are erected in a cast-in-place pile hole, the air pipe is connected with a compressed air outlet of an air compressor on the ground, and the guide pipe comprises a vertical section inserted in the cast-in-place pile hole and an inverted-U-shaped section connected with the vertical section and a mud pit. The air pipe is fixedly connected with the outer wall of the vertical section of the guide pipe, the bottom end of the air pipe is inserted into the guide pipe, a settling pond and a circulating pond are arranged on one side of an opening of the cast-in-place pile hole, a slurry pumping pipe is arranged between the settling pond and the circulating pond, a filter pump is arranged on the slurry pumping pipe, and an inverted-U-shaped circulating pipe is arranged in the circulating pond. And the outlet end of the circulating pipe is arranged at the upper end of the cast-in-place pile