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Flat-bottom shoe grinding is a fundamental grinding and milling tool in petroleum drilling and well repair operations. It is mainly used for reworking the fish top fallen in the well, grinding metal debris, and cleaning the wellbore. Its flat design is suitable for large-scale grinding tasks and is a conventional solution for handling downhole metal obstructions.

Casing milling shoes are efficient wellbore cleaning tools used in petroleum drilling and workover operations. They are mainly used to remove cement rings, hard deposits, or metal residues attached to the casing wall, restoring the wellbore diameter and providing a clean environment for subsequent operations.

The tapered milling shoe is an efficient milling tool used in petroleum drilling and well repair operations, mainly for handling complex fishings, casing restrictions, or irregular wellbore sections downhole. Its tapered design enables progressive grinding, creating ideal conditions for subsequent operations.

The AJ type safety joint is a specialized tool used for emergency separation of downhole tubulars in petroleum drilling operations. It belongs to the high-performance products in the safety joint series and is especially suitable for deep wells, ultra-deep wells, and complex well conditions.

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