Overshot

The LT-type sliding sleeve fishing sleeve, as a professional fishing tool, is mainly used for retrieving drill collars, drill pipes, tubing, joints, and other abandoned downhole pipes. During drilling operations, unexpected situations sometimes occur, such as pipes falling downhole. This tool can then demonstrate its powerful fishing capabilities. Equipped with seals, it can circulate drilling fluid at higher pump pressure after capturing the target, ensuring downhole pressure balance and smooth operation. Its bottom features a milling shoe, which plays a crucial role in trimming the top of the target, making fishing more precise and effective. Furthermore, it can be used in conjunction with a shock absorber to retrieve stuck pipes. If the target is captured but cannot be freed, the fishing sleeve can be released to pull out the drill string, providing a flexible solution for complex downhole fishing problems.

Design Features：

• Innovative Sliding Sleeve Structure: The sliding sleeve design allows for flexible operation during retrieval. When approaching the target pipe, the sleeve precisely engages, improving accuracy and success rate while reducing collisions and friction with the wellbore, protecting its integrity.
• Safe Sealing Configuration: The included sealing components are a key design highlight. After capturing the target, they effectively circulate drilling fluid at higher pump pressures, ensuring stable downhole pressure and preventing blowouts and other hazards, providing a safe downhole environment for retrieval operations.
• Practical Milling Shoe Design: The milling shoe design on the bottom is highly practical. When the top of the target pipe is uneven or obstructed, the milling shoe can adjust the top, allowing the retrieval sleeve to better fit the target and ensuring retrieval stability.
• Flexible Integration with Shock Absorbers: The tool is designed for use with shock absorbers, enhancing its ability to handle complex situations. When the target object is stuck, the shock force generated by the shocker, combined with the gripping action of the retrieval sleeve, can effectively solve problems such as stuck drills and improve retrieval efficiency.

Technical parameters ：