Spear and packer tool, an assembly comprising said tool, and a method for using said tool and said assembly

A spear and packer tool:

• said tool arranged for being conveyed on a drill pipe string;
• said tool having a mandrel having a through bore;
• a spear anchor mechanism arranged to grip a section of a casing in a wellbore for removal therefrom, said spear anchor mechanism being arranged to be set by differential pressure, said mandrel being rotatable relative to the spear anchor mechanism;
• and
• a packer assembly being a mechanical rotational-set retrievable packer configured to seal an annulus between the tool and the casing, said packer assembly being arranged to be set by applying left-hand rotation to the mandrel while slips segments are engaging the casing, said packer assembly being arranged below the spear anchor mechanism,
• wherein the packer assembly comprises:
• a compresser sleeve arranged slidable on the mandrel;
• a ring-shaped packer element encircling the mandrel to be compressed axially to expand to seal the annulus;
• a segmented ring moveable relative to the mandrel;
• and
• a stopper element being fixed to the mandrel in an axial direction to limit proximal movement of the segmented ring.