Method for removing a jacket of a drilling or production rig and vessel provided with a device therefor
First Claim
1. A method for removing a jacket of a drilling or production rig using a vessel provided with a deck, comprising the steps of manoeuvring the vessel close to the jacket, hoisting the jacket, and tilting the jacket relative to a tilting point located close to an edge of the deck of the vessel until the jacket lies on the deck, wherein a side of the jacket directed toward the vessel is supported during the tilting.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for removing a jacket of a drilling or production rig using a vessel provided with a deck includes manoeuvring the vessel close to the jacket, hoisting the jacket, and tilting the jacket relative to a tilting point located close to an edge of the deck of the vessel until the jacket lies on the deck, wherein the side of the jacket directed toward the vessel is supported during the tilting, such that the jacket can be removed in one operation and carried away using the vessel. A vessel with a deck and a device for removing a jacket of a drilling or production rig is also disclosed.
12 Citations
18 Claims
- 1. A method for removing a jacket of a drilling or production rig using a vessel provided with a deck, comprising the steps of manoeuvring the vessel close to the jacket, hoisting the jacket, and tilting the jacket relative to a tilting point located close to an edge of the deck of the vessel until the jacket lies on the deck, wherein a side of the jacket directed toward the vessel is supported during the tilting.
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5. A device for removing a jacket of a drilling or production rig and located on a vessel having a deck, comprising:
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at least one support beam, the at least one support beam being tiltable transversely of an edge of the deck of the vessel, hoisting means connected to the at least one support beam for hoisting the jacket, tilting means for tilting the at least one support beam relative to the vessel, and support means for supporting the jacket, the support means provided on the side of the at least one support beam remote from the vessel. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification