Patent ID: 11371315

Abstract:
The present invention provides a milling tool (1) for a wellbore, comprising a milling section (2) and a metal cuttings removal section (3), the milling section (2) comprises radially arranged milling elements (4); and the metal cuttings removal section (3) has a first end (5) and a second end (6) and comprises a cylinder-shaped magnetic element (7), a rotation generating device (8) and a helix-shaped longitudinal guide element (9), wherein the first end (5) is connected to the milling section; the helix-shaped longitudinal guide element (9) is arranged around the cylinder-shaped magnetic element (7); the rotation generating device (8) is operably connected to the cylinder-shaped magnetic element (7) or the helix-shaped longitudinal guide element (9); wherein the cylinder-shaped magnetic element and the helix-shaped longitudinal guide element (9) are rotatable relative to each other around a common centreline (C), and configured such that metal cuttings accumulating on the cylinder-shaped magnetic element during use is guided by the helix-shaped longitudinal guide element towards the second end (6) of the metal cuttings removal section when the rotation generating device is operated.