Hole sealing device for exploration drilling

• Main Authors: NI HUALONG, ZUO FENG, WANG SHUSHENG, HAN QINGGUO, ZHANG DEJUN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• 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 hole sealing device comprises a sealing disc, a transmission cavity is formed in the sealing disc, supporting rods which are evenly distributed in the circumferential direction are connected to the periphery of the sealing disc in a sliding mode, one end of each supporting rod extends into the transmission cavity, and the other end of each supporting rod extends into the transmission cavity. An annular expansion air bag and an annular pressing disc located above the annular expansion air bag are arranged on the top of the sealing disc, and the annular pressing disc is arranged in an up-down sliding mode. According to the drill hole sealing device, the supporting rods which are evenly distributed in the circumferential direction are arranged on the periphery of the sealing disc, then the Huxing expansion air bag and the annular pressing disc are arranged above the sealing disc, the resistance of the sealing disc and the annular expansion air bag guided into the deep position of the drill hole is smaller, a