Rock sample drilling and coring equipment and coring method

• Main Authors: XU JUNLONG, LIU JUN, ZHAO ZHEQIANG, SUN LICHUAN, WANG JINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• 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 invention provides rock sample drilling and coring equipment and a coring method. The rock sample drilling and coring equipment comprises a base, a drilling machine and a cooling tank, and a clamping assembly used for clamping a rock sample is arranged above the base; the drilling machine is provided with a hollow drill bit extending downwards. The cooling tank is connected with the drilling machine through a cooling pipe; a cooling outer cylinder is connected to the drilling machine, the hollow drill bit penetrates through the cooling outer cylinder, a cooling cavity is defined by the cooling outer cylinder, and air inlet holes are formed in the peripheral wall of the hollow drill bit. According to the rock sample drilling and coring equipment, liquid cooling gas is supplied into the cooling cavity and the hollow drill bit through the cooling pipe, the hollow drill bit is effectively cooled through low-temperature gas, the periphery of the hollow drill bit is sleeved with the cooling outer cylinder, and