US 12,392,212 B2
Annular barrier
Ricardo Reves Vasques, Zug (CH)
Assigned to Welltec Manufacturing Center Completions ApS, Esbjerg (DK)
Filed by Welltec Manufacturing Center Completions ApS, Esbjerg (DK)
Filed on Jun. 30, 2022, as Appl. No. 17/854,362.
Claims priority of application No. 21182651 (EP), filed on Jun. 30, 2021; and application No. 22180565 (EP), filed on Jun. 22, 2022.
Prior Publication US 2023/0003097 A1, Jan. 5, 2023
Int. Cl. E21B 33/124 (2006.01); E21B 33/12 (2006.01); E21B 33/122 (2006.01)
CPC E21B 33/1243 (2013.01) [E21B 33/1208 (2013.01); E21B 33/122 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An annular barrier for providing zonal isolation in an annulus downhole between a well tubular metal structure and another well tubular metal structure or a wall of a borehole, comprising:
a tubular metal part configured to be mounted as part of the well tubular metal structure, the tubular metal part having an outer face, an opening and an axial extension along the well tubular metal structure, and
an expandable metal sleeve radially surrounding the tubular metal part to define an expandable space that is in fluid communication with an interior portion of the tubular metal part via the opening, wherein the expandable metal sleeve is radially expandable by introducing pressurized fluid into the opening to expand the expandable metal sleeve from a first radial position adjacent the tubular metal part to a second radial position, outwards of the first radial position, in which the expandable metal sleeve contacts the other tubular metal structure or the wall of the borehole, the expandable metal sleeve having a circumferential groove, a first end and a second end, each end of the expandable metal sleeve being connected with the outer face of the tubular metal part,
wherein the annular barrier further comprises an anchoring element arranged in the circumferential groove, the anchoring element comprising a first anchoring part at least partly overlapping a second anchoring part in a radial direction perpendicular to the axial extension so that an inner face of the first anchoring part at least partly abuts an outer face of the second anchoring part.