1results about How to "Convenient downhole operation" patented technology

This invention belongs to the field of downhole workover tool technology, specifically relating to a safety connector. The safety connector includes a lower connector for connecting to a workover tool and an upper connector for connecting to a workover string. The upper and lower connectors have an overlapping section in the axial direction. The upper connector is inserted into the top of the lower connector and locked by a locking structure provided between the upper and lower connectors. The locking structure includes a pressure-pressurizing sleeve to unlock when a pressure-pressurizing ball is inserted into the safety connector and strikes the pressure-pressurizing sleeve downwards. When the upper connector is moved upwards by the workover string, a flushing space is formed in the overlapping section. The upper part of the lower connector is provided with an anti-detachment structure to prevent the upper connector from detaching from the lower connector. Workover fluid is pumped into the flushing space through the annular space between the casing and the upper connector to flush solid debris on the workover tool.