| 摘要 |
A device by an expansion packer element of the kind used for plugging wells, for example in the exploration and/or recovery of petroleum deposits, wherein a packer element is lowered into the well (40) by means of a drill string/coiled tubing/wire line/slick line (42), the packer being formed by a plastically deformable plug pipe (2) provided with weakenings, for example forming one or more countersink hollows (4), thereby being arranged to make a collar/collars (6) form externally on the plug pipe (2) when the plug pipe (2) is being compressed. |
