Patent ID: 7779908

Claim:
An arrangement for affixing an expandable packer in a hole, wherein the arrangement includes a piston-cylinder device in which the piston can be caused to move in the cylinder with the aid of a pressurized medium and in which expansion of the packer is achieved with the aid of movement of the piston by transferring force from the movement of the piston to an expandable part of the packer so as to cause the packer to expand, wherein expansion of the packer results in the packer being affixed in the hole by means of friction, characterized in that the arrangement includes an elongate main body that has a through-penetrating aperture in the longitudinal direction of said body, wherein the main body has a front end which faces inwardly of the hole when affixing the packer and faces towards the packer, and a rear end of which faces outwardly from the hole; in that at least a part of the main body has the form of a piston rod on which and along which the piston can move; and in that the arrangement includes pressure connecting means for connection to said pressurized medium, and a connection means between said pressure connection means and said piston.