Cutting tool
First Claim
1. A tool for penetrating a tubular, the tool comprising:
- at least one length of linear shaped charge,a carrier adapted to support the/each length of linear shaped charge, andat least one detonation mechanism for detonating the/each length of linear shaped charge such that, upon detonation of the/each length of linear shaped charge, a length of material is projected outwardly from the/each length of linear shaped charge towards an internal surface of the tubular, which is thereby penetrated;
wherein the at least one length of linear shaped charge is arranged such that, upon detonation, a trajectory of at least one portion of the projected material from one length of linear shaped charge intersects a trajectory of at least one other portion of projected material from the same length of linear shaped charge at or adjacent the internal surface of the tubular;
wherein the carrier is an expandable carrier, adapted to support the/each length of linear shaped charge, the expandable carrier having a central longitudinal axis and including proximal and distal plates longitudinally separated by the/each length of linear shaped charge, the expandable carrier being configured for selective motion between extended and expanded configurations by relative longitudinal motion of the proximal and distal plates.
2 Assignments
0 Petitions
Accused Products
Abstract
A tool for penetrating a tubular as described. The tool comprises at least one length of linear shaped charge, a carrier adapted to support the/each length of linear shaped charge, and at least one detonation mechanism for detonating the/each length of linear shaped charge. Upon detonation of the/each length of linear shaped charge, a length of material is projected outwardly from the/each length of linear shaped charge towards an internal surface of the tubular, which is thereby penetrated. The at least one length of linear shaped charge is arranged such that, upon detonation, the trajectory of at least one portion of the projected material intersects the trajectory of at least one other portion of projected material at or adjacent the internal surface of the tubular.
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Citations
21 Claims
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1. A tool for penetrating a tubular, the tool comprising:
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at least one length of linear shaped charge, a carrier adapted to support the/each length of linear shaped charge, and at least one detonation mechanism for detonating the/each length of linear shaped charge such that, upon detonation of the/each length of linear shaped charge, a length of material is projected outwardly from the/each length of linear shaped charge towards an internal surface of the tubular, which is thereby penetrated; wherein the at least one length of linear shaped charge is arranged such that, upon detonation, a trajectory of at least one portion of the projected material from one length of linear shaped charge intersects a trajectory of at least one other portion of projected material from the same length of linear shaped charge at or adjacent the internal surface of the tubular; wherein the carrier is an expandable carrier, adapted to support the/each length of linear shaped charge, the expandable carrier having a central longitudinal axis and including proximal and distal plates longitudinally separated by the/each length of linear shaped charge, the expandable carrier being configured for selective motion between extended and expanded configurations by relative longitudinal motion of the proximal and distal plates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of penetrating a section of tubular, the method comprising:
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providing a tool which comprises at least one length of linear shaped charge, a carrier adapted to support the/each length of linear shaped charge, and at least one detonation mechanism for detonating the/each length of linear shaped charge; arranging the/each length of linear shaped charge along the carrier in a predetermined charge configuration; running the tool into the tubular to a desired location with the/each length of linear shaped charge at a radially or obliquely spaced distance from the internal surface of the tubular; with the detonation mechanism, detonating at least one portion of the/each length of linear shaped charge; responsive to the detonation, projecting a length of material outwardly from the/each length of linear shaped charge towards an internal surface of the tubular; after the detonation, traversing the radially or obliquely spaced distance with the length of material; penetrating the internal surface of the tubular with the length of material; responsive to the predetermined charge configuration, intersecting a trajectory of at least one portion of the projected material with a trajectory of at least one other portion of projected material at or adjacent the internal surface of the tubular after both portions of projected material have traversed the radially or obliquely spaced distance; wherein the carrier is an expandable carrier, adapted to support the/each length of linear shaped charge, the expandable carrier having a central longitudinal axis and including proximal and distal plates longitudinally separated by the/each length of linear shaped charge, the expandable carrier being configured for selective motion between extended and expanded configurations by relative longitudinal motion of the proximal and distal plates. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A tool for penetrating a tubular having an interior surface, the tool comprising:
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at least one length of linear shaped charge, a carrier adapted to support the/each length of linear shaped charge at a radially or obliquely spaced distance from the interior surface, and at least one detonation mechanism for detonating the/each length of linear shaped charge such that, upon detonation of the/each length of linear shaped charge, a length of material is projected outwardly from the/each length of linear shaped charge across the radially or obliquely spaced distance towards the internal surface of the tubular, which is thereby penetrated; wherein the at least one length of linear shaped charge is arranged such that, upon detonation, a trajectory of at least one portion of the projected material intersects a trajectory of at least one other portion of projected material at or adjacent the internal surface of the tubular after traversing the radially or obliquely spaced distance; wherein the carrier is an expandable carrier, adapted to support the/each length of linear shaped charge, the expandable carrier having a central longitudinal axis and including proximal and distal plates longitudinally separated by the/each length of linear shaped charge, the expandable carrier being configured for selective motion between extended and expanded configurations by relative longitudinal motion of the proximal and distal plates.
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Specification