Guiding milling cone for milling sleeve in salt well repair

The utility model relates to the technical field of well drilling repair, in particular to a guide milling cone used for a milling sleeve in salt well repair, the guide milling cone comprises a milling cone body and a guide rod, and the milling cone body comprises a connecting part, a milling part and a transition section which are connected in sequence. A threaded hole used for being connected with a drill rod is formed in the connecting part. And an alloy block for milling the staggered sleeve is arranged on the side wall of the milling part. The transition section is used for connecting the guide rod and the milling part. The transition section is shrunk in the axial direction of the milling cone body. And the guide rod is embedded into the contraction end of the transition section. And the guide rod is used for guiding the milling part to enter the staggered sleeve. And the axis of the guide rod is offset from the axis of the milling cone body. According to the guide milling cone, the guide rod is used fo