Drilling and grinding tool for downhole operation

• Main Authors: LIU LEI, HE JIA, REN HAITAO, ZHOU CHUNXIAO, ZHAO JIAHUI, DENG XIULI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• 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 drilling and grinding tool comprises an upper connector, a tool body and cutting teeth, an upper center flow channel is formed in the upper connector, and connecting threads are arranged on the upper portion of the upper connector; a lower center runner is arranged in the tool body, and cutting teeth are inlaid and fixed outside the tool body. The tool is characterized in that the upper connector is connected with the tool body through a universal shaft, and the tool body is partially or completely made of magnetic materials. The drilling and grinding tool has the beneficial effects that the tool body can freely deflect within a certain angle range relative to the upper connector, when the tool conducts drilling and grinding operation, the adsorption pressurization effect of the magnetic material is matched with the rotation adjusting effect of the universal shaft, cutting teeth can more effectively invade a drilled and ground object, and efficient drilling and grinding cutting is achieved. 本发明公开了一种用于井下作业