2results about How to "Improve workover efficiency" patented technology

This utility model provides an offshore well workover platform, including an offshore workover platform, a cantilever workover platform, a coiled tubing reel, an injection port, and a lifting frame. The cantilever workover platform is equipped with a Y-axis sliding mechanism and a rotary table. The Y-axis sliding mechanism includes a Y-axis guide rail and a Y-axis hydraulic cylinder. The bottom of the lifting frame is mounted on the Y-axis guide rail, and the Y-axis hydraulic cylinder drives the lifting frame to reciprocate along the Y-axis guide rail. The coiled tubing reel is mounted on the rotary table, and the rotary table drives the tubing reel to rotate reciprocally. An X-axis moving mechanism is provided between the cantilever workover platform and the offshore workover platform. The X-axis moving mechanism includes an X-axis guide rail and an X-axis hydraulic cylinder. This utility model aims to provide an offshore well workover platform suitable for well workover operations. The lifting frame can move along the Y-axis, and the cantilever workover platform can move along the X-axis, enabling rapid adjustment to the optimal operating state based on wellhead conditions, thereby improving well workover efficiency.

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.