Method and Device for Setting a Bottom Packer

A device for setting a bottom packer (2) in an annulus in a borehole (4), said annulus inner surface comprising an outer surface of a pipe (1) adapted for deployment in said borehole (4) and said pipe (1) having a first end to be lowered towards the borehole bottom (16), said bottom packer (2) being slidingly disposed around an outer surface of said pipe (1) in the vicinity of the pipe (1) first end, characterized by an actuation element (6) adapted for telescopic assembly around the outer surface of said pipe (1), closer to said pipe (1) first end than said packer (2), and slidable from a first position to a second position along the pipe (1), a conical ring (12) adapted for installation on the pipe (1) farther from said pipe (1) first end than said packer (2) and tapering towards the packer (2), said actuation element (6) comprising an abutment element (10) designed for abutment against said packer (2), and said actuation element (6) also comprising an is actuation pipe (8), a portion of which extends beyond the pipe (1) first end when the actuation element (6) is in said first position.