Deep well type reverse circulation drilling machine

• Main Authors: YE YANLI, WANG YANGUANG, WANG HEXIN, GUO SHAOYING, LI SHAOFENG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• 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 a deep well type reverse circulation drilling machine which comprises a drilling machine rack, a fixed box body is connected to the drilling machine rack in a sliding mode, a motor support is installed on one side of the top of the fixed box body, a driving motor is installed on the motor support, an upper turbine is installed on the top of the fixed box body, and a lower turbine is installed on the top of the fixed box body. A rotating motor is installed on the upper turbine, an upper impeller is installed at the output end of the rotating motor, a rotary supporting bearing is rotationally connected into the fixed box body, a hollow transmission shaft is installed on the rotary supporting bearing, a plurality of hollow drill rods are connected to the bottom end of the hollow transmission shaft, and a lower turbine is connected to the bottom ends of the hollow drill rods. And a drill bit is mounted at the bottom of the lower turbine. The utility model has the benefits that the pump