Setting blanking plug

• Main Authors: ZHAO ZHONGHAO, WANG XUDONG, LI NAN, ZHANG CHENGFU, DING DEJI, CHU YINGJIE, SHI ZHANGZE, QIN LIMIN
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2021
• 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 inner wall of the tail end of an outer layer of a salvage assembly is in threaded connection with the outer wall of the head end of a sealing cylinder, the upper portion of a body is connected into the sealing cylinder in a sleeved mode, body through holes penetrating through the side wall of the body are evenly formed in the side wall of the body, and the outer wall of the tail end of the body is in threaded connection with the inner wall of the head end of a lower connector. A body boss is formed on the outer wall of the lower portion of the body, a lower connector boss is formed at the head end of the lower connector, a UT disc is arranged on the outer wall of the portion, between the body boss and the lower connector boss, of the body, the UT disc is in interference fit with the body, and the UT disc is fixed to the outer wall of the body through a pressing cap. The sealing design of the UT disc in the setting blanking plug can solve the problems that the O-shaped ring is damaged and falls off, and th