Well drilling device for spraying drilling fluid

• Main Authors: TANG JUN, YU HAOYANG, HE WANTONG, ZHU YONGZHI, LI YUNZHOU
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• 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 a drilling device for spraying drilling fluid, and relates to the technical field of oil-gas exploration and development. The spray head is used for spraying out the drilling fluid mixed with the reinforcing material; the first mounting seat is fixedly connected with the drill bit; a plurality of through grooves, a plurality of inserting grooves, a plurality of first sliding grooves and a plurality of second sliding grooves are formed in the base, the inserting grooves, the first sliding grooves and the second sliding grooves are communicated pairwise, and the through grooves are communicated with the inserting grooves; the second mounting base is fixedly connected with the spray head and abuts against the first mounting base; the sliding part is connected with the second mounting seat, is in plug-in fit with the slot, is in sliding fit with the first sliding groove and is in sliding fit with the second sliding groove; the blocking piece is arranged in the slot and is connected wit