System and method for simultaneous sea drilling operations
First Claim
1. A system for simultaneous execution of operations by a drilling rig or completion rig comprising:
- at least two sustaining beams which are substantially parallel to and separated from each other, which are substantially parallel to the sea surface, and extend horizontally over an entire length of a moon pool;
a first mobile base which is supported on the at least two sustaining beams and can move horizontally over the at least two sustaining beams with the use of sliding elements; and
a second mobile base which is supported on the at least two sustaining beams and can move horizontally on the at least two sustaining beams with the use of sliding elements,wherein the system is configured such that items of subsea equipment can be simultaneously supported on the first and second mobile bases, respectively, while the items of subsea equipment extend below the at least two sustaining beams in a gravitational direction.
1 Assignment
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Accused Products
Abstract
A system and method for carrying out simultaneous operations of assembling, dismantling, and maintaining equipment installed by an oil rig, using the tools, systems, and the areas available on the rig itself. The system includes two parallel and separated sustaining beams and two mobile bases supported on the beams to carry out the simultaneous operations. This system allows a method for simultaneously assembling two items of subsea equipment which are to be installed to be performed. Also, this system allows a method for simultaneously replacing and assembling subsea equipment to be performed. Additionally, the equipment can be lowered or recovered using either a derrick and pipe string or a winch and steel cable.
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Citations
12 Claims
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1. A system for simultaneous execution of operations by a drilling rig or completion rig comprising:
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at least two sustaining beams which are substantially parallel to and separated from each other, which are substantially parallel to the sea surface, and extend horizontally over an entire length of a moon pool; a first mobile base which is supported on the at least two sustaining beams and can move horizontally over the at least two sustaining beams with the use of sliding elements; and a second mobile base which is supported on the at least two sustaining beams and can move horizontally on the at least two sustaining beams with the use of sliding elements, wherein the system is configured such that items of subsea equipment can be simultaneously supported on the first and second mobile bases, respectively, while the items of subsea equipment extend below the at least two sustaining beams in a gravitational direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for simultaneous execution of operations by a drilling rig or completion rig comprising:
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at least two sustaining beams which are substantially parallel to and separated from each other, which are substantially parallel to the sea surface; a first mobile base which is supported on the at least two sustaining beams and can move horizontally over the at least two sustaining beams with the use of sliding elements; and a second mobile base which is supported on the at least two sustaining beams and can move horizontally on the at least two sustaining beams with the use of sliding elements, wherein the system is configured such that items of subsea equipment can be simultaneously supported on the first and second mobile bases, respectively, while the items of subsea equipment extend below the at least two sustaining beams in a gravitational direction. - View Dependent Claims (11, 12)
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Specification