Device for blocking coring hole defects by grouting under pressure

• Main Authors: SHA MENGLIN, ZHU MINGJUN, MA ZULIANG, XU LINJUN, CHENG XIAOCHUN, WANG HAIYANG, CHENG XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• 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 device for blocking coring hole defects by grouting under pressure, which comprises a coring hole and a grouting pipe, the grouting pipe is inserted into the coring hole, a support is arranged at the top end of the coring hole, an adapter is arranged on the support, the top end of the grouting pipe is connected with the adapter, and the coring hole is connected with the grouting pipe. The coring hole is arranged in the grouting pipe, the adapter is connected with an external first grouting pump through a pipeline, a hole sealing bag is arranged in the coring hole, the grouting pipe is sleeved with the hole sealing bag, the grouting pipe is connected to the hole sealing bag, and the end, away from the hole sealing bag, of the grouting pipe is connected with an external second grouting pump. The position of the mud jacking pipe can be flexibly adjusted, the hole sealing bag effectively supports the coring hole, manpower is saved, and operation is convenient. 本实用新型公开了一种带压注浆封堵取芯孔缺陷的装