Patents Assigned to CALLIDUS CAPITAL B.V.
  • Method and arrangement for removing a liner below surface
    Patent number: 10920518
    Abstract: A method of removing a liner of a well, the liner comprising a liner material. The method comprises providing a seal in the well for defining an upper and/or lower boundary of a removal space, the space being delimited by at least the seal and the liner and providing oxygen or an oxygen releasing compound in the space. The method further comprises providing an ignition module for igniting the liner material near a lower boundary of the space and activating the ignition for igniting the liner material.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: February 16, 2021
    Assignee: CALLIDUS CAPITAL B.V.
    Inventors: Sven IJme van der Werf, Michel Stuiver, Feitze Veenstra