Method and arrangement for removing a liner below surface
AssigneeCallidus Capital B.V.
InventorsSven IJme van der Werf, Michel Stuiver, Feitze Veenstra
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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.
Claims17
A method of removing a liner of a well, the liner comprising a liner material, the method comprising:
- Providing an oxidiser holding module in the well for defining a first boundary of a removal space, the space being delimited by at least the oxidiser holding module transverse of the liner and the liner;
- Providing oxygen or an oxygen releasing compound in the space;
- Providing an ignition module for igniting the liner material inside the space;
- and
- Activating the ignition for igniting the liner material.
An arrangement for oxidation of a liner of a well, the liner comprising a liner material and the arrangement comprising:
- An oxidiser holding module transverse of the liner for creating a space for holding oxygen or an oxygen releasing compound in the space;
- A supply line for supplying the oxygen or the oxygen releasing compound to the space;
- An ignition module for igniting the liner material near a lower boundary of the space.
Dependencies are inferred from the claim text.