US 12,435,596 B2
Well abandonment
Feitze Veenstra, Heerenveen (NL)
Assigned to CALLIDUS CAPITAL B.V., Heerenveen (NL)
Appl. No. 18/263,676
Filed by Callidus Capital B.V., Heerenveen (NL)
PCT Filed Feb. 1, 2022, PCT No. PCT/NL2022/050046
§ 371(c)(1), (2) Date Jul. 31, 2023,
PCT Pub. No. WO2022/164322, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 2027470 (NL), filed on Feb. 1, 2021.
Prior Publication US 2024/0093567 A1, Mar. 21, 2024
Int. Cl. E21B 33/12 (2006.01); E21B 29/02 (2006.01); E21B 34/06 (2006.01); E21B 29/00 (2006.01)
CPC E21B 33/1208 (2013.01) [E21B 29/02 (2013.01); E21B 34/06 (2013.01); E21B 29/005 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A device for placing a seal plug in a liner of a well, the device comprising:
a seal plug arranged to form a circumferential seal against an inner wall of the liner in an unrestricted state, the seal plug comprising a radial clamping mechanism for clamping the seal plug in the liner, the radial clamping mechanism comprising at least one clamping member; and
a clamping mechanism restriction member for holding the radial clamping mechanism in a restricted state, wherein the radial clamping mechanism has a smaller outer footprint in the restricted state than in the unrestricted state and in the unrestricted state, the radial clamping mechanism is no longer restricted by the restriction member;
wherein the restriction member comprises a hollow chamber with an inlet for receiving a flow of fluid into the hollow chamber and an outlet passage arranged to allow passage of the radial clamping mechanism out of the hollow chamber, and the radial clamping mechanism is positioned at least partially in the hollow chamber between the inlet and the outlet passage.