US 12,247,466 B2
Downhole tool and method for perforating a downhole tubular
Erik Kerst Cornelissen, Amsterdam (NL); Sam Gerard Van Moorsel, Amsterdam (NL); Coen Van Schie, Amsterdam (NL); and Robert Jan Neiteler, Rijswijk (NL)
Assigned to SHELL USA, INC., Houston, TX (US)
Appl. No. 18/700,191
Filed by SHELL USA, INC., Houston, TX (US)
PCT Filed Nov. 10, 2022, PCT No. PCT/EP2022/081439
§ 371(c)(1), (2) Date Apr. 10, 2024,
PCT Pub. No. WO2023/083946, PCT Pub. Date May 19, 2023.
Claims priority of application No. 21207921 (EP), filed on Nov. 12, 2021.
Prior Publication US 2024/0418059 A1, Dec. 19, 2024
Int. Cl. E21B 43/112 (2006.01)
CPC E21B 43/112 (2013.01) 17 Claims
OG exemplary drawing
 
1. A downhole tool for perforating of a tubular installed in a borehole in the Earth, comprising:
an elongate tool housing extending around a central longitudinal tool axis;
a first sting-arm combination comprising:
a first sting, movable in a first radially outward direction, away from the central longitudinal tool axis, from a first retracted position to a first extended position whereby the first sting extends to outside the elongate tool housing;
a first bending arm having a first distal end on which the first sting is mounted, said first bending arm at a first proximal end thereof being longitudinally secured stationary relative to the elongate tool housing, whereby the first sting and the first distal end of the first bending arm are movable in unison in a first longitudinal-radial plane from the central longitudinal tool axis;
a second sting-arm combination comprising:
a second sting, movable in a second radially outward direction, away from the central longitudinal tool axis, from a second retracted position to a second extended position whereby the second sting extends to outside the elongate tool housing;
a second bending arm having a second distal end on which the second sting is mounted, said second bending arm at a second proximal end thereof being longitudinally secured stationary relative to the elongate tool housing, whereby the second sting and the second distal end of the second bending arm are movable in unison in a second longitudinal-radial plane from the central longitudinal tool axis;
wherein said first sting-arm combination and second sting-arm combination are arranged side-by-side whereby the first sting and the second sting are positioned in one transverse plane but at mutually differing azimuths around the central longitudinal tool axis; the downhole tool further comprising:
a press device comprising a wedge, configured to act on the first sting to force the first sting in the first radially outward direction from the tool housing, and to simultaneously act on the second sting to force the second sting in the second radially outward direction from the tool housing, the first and second radially outward directions being mutually differing, both transversely to the longitudinal axis, upon relative movement of the wedge, in a longitudinal direction, with respect to the first and second sting;
wherein said wedge comprises a first wedge segment and a second wedge segment, slidingly abutted against said first wedge segment in a longitudinal-radial abutment plane, whereby the first wedge segment is in sliding contact with the first sting-arm combination and whereby the second segment is in sliding contact with the second sting-arm combination, and wherein the first wedge segment and the second wedge segment are free to slidingly move relative to each other in the longitudinal direction when being forced into relative movement with respect to the first and second stings, in longitudinal direction parallel to the central longitudinal tool axis.