A MOBILE OFFSHORE DRILLING UNIT, A METHOD OF USING SUCH A UNIT AND A SYSTEM COMPRISING SUCH A UNIT
First Claim
1. An offshore well-processing system for performing one or more well-processing tasks on one or more wells of an off-shore oil or gas reservoir, the system comprising a mobile offshore drilling unit and a remote well-processing device configured to be positioned on an offshore platform different from the mobile offshore drilling unit, the mobile offshore drilling unit defining at least one well centre and comprising at least one primary drill rig comprising at least one drill floor and at least one hoisting system for raising and lowering tubular equipment through the at least one well centre from/into a well in the seafloor;
- and wherein the remote well-processing device is configured to perform at least a first well-processing task when positioned on said offshore platform at a position displaced from the at least one well centre defined by the mobile offshore drilling unit; and
wherein the mobile offshore drilling unit and the remote well-processing device are configured to be operationally coupled to each other when the remote well-processing device is positioned on said offshore platform; and
wherein the mobile offshore drilling unit is configured to assist in two or more concurrent well-processing tasks performed concurrently on respective wells, including the first well processing task performed by the remote well-processing device on a first well and a second well-processing task concurrently performed by the offshore well-processing system on a second well.
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Accused Products
Abstract
An offshore well-processing system includes a mobile offshore drilling unit and a remote well-processing device configured to be positioned on an offshore platform different from the mobile offshore drilling unit, the mobile offshore drilling unit defining at least one well centre and comprising at least one primary drill rig including at least one drill floor and at least one hoisting system for raising and lowering tubular equipment through the at least one well centre from/into a well in the seafloor. The mobile offshore drilling unit and the remote well-processing device are configured to be operationally coupled to each other; and the mobile offshore drilling unit is configured to assist in performing concurrent well-processing tasks on respective wells, including the first well processing task performed by the remote well-processing device on a first well and a second well-processing task concurrently performed by the offshore well-processing system on a second well.
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Citations
28 Claims
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1. An offshore well-processing system for performing one or more well-processing tasks on one or more wells of an off-shore oil or gas reservoir, the system comprising a mobile offshore drilling unit and a remote well-processing device configured to be positioned on an offshore platform different from the mobile offshore drilling unit, the mobile offshore drilling unit defining at least one well centre and comprising at least one primary drill rig comprising at least one drill floor and at least one hoisting system for raising and lowering tubular equipment through the at least one well centre from/into a well in the seafloor;
- and wherein the remote well-processing device is configured to perform at least a first well-processing task when positioned on said offshore platform at a position displaced from the at least one well centre defined by the mobile offshore drilling unit; and
wherein the mobile offshore drilling unit and the remote well-processing device are configured to be operationally coupled to each other when the remote well-processing device is positioned on said offshore platform; and
wherein the mobile offshore drilling unit is configured to assist in two or more concurrent well-processing tasks performed concurrently on respective wells, including the first well processing task performed by the remote well-processing device on a first well and a second well-processing task concurrently performed by the offshore well-processing system on a second well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 28)
- and wherein the remote well-processing device is configured to perform at least a first well-processing task when positioned on said offshore platform at a position displaced from the at least one well centre defined by the mobile offshore drilling unit; and
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19. A method of performing a well-processing task on a plurality of wells of an offshore oil or gas reservoir, the method comprising:
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positioning a mobile offshore drilling unit in a proximity of an offshore platform different from the mobile offshore drilling unit and located above a plurality of wells, the mobile offshore drilling unit comprising a primary drill rig comprising a drill floor and a hoisting system for raising and lowering tubular equipment from/into a well in the seafloor; performing, at a position on the offshore platform and displaced from a well centre defined by the mobile offshore drilling unit a first well-processing task on a first well, assisted by the mobile offshore drilling unit via an operational coupling extending between the mobile offshore drilling unit and said position on the offshore platform; and concurrently performing a second well-processing task on a second well, wherein the second well-processing task is performed by the mobile offshore drilling unit or is assisted by the mobile offshore drilling unit via an operational coupling extending between the mobile offshore drilling unit and a position of the second well on the offshore platform. - View Dependent Claims (20, 21, 22, 23)
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24. (canceled)
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25. A mobile offshore drilling unit comprising a primary drill rig comprising a drill floor and a hoisting system for raising and lowering tubular equipment from/into a well in the seafloor through a well centre defined by the mobile offshore drilling unit;
- and wherein the mobile offshore drilling unit is configured to establish an operational coupling with a remote well-processing device positioned on an offshore platform different from the mobile offshore drilling unit and at a position different from the well centre defined by the mobile offshore drilling unit; and
to assist in performing two or more concurrent well-processing tasks performed on respective wells of an offshore oil or gas reservoir;
wherein at least a first one of said well-processing tasks is performed by said remote well-processing device. - View Dependent Claims (26, 27)
- and wherein the mobile offshore drilling unit is configured to establish an operational coupling with a remote well-processing device positioned on an offshore platform different from the mobile offshore drilling unit and at a position different from the well centre defined by the mobile offshore drilling unit; and
Specification