Jack-up, movable drilling platform having a telescoping outrigger
First Claim
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1. A jack-up, movable drilling platform, comprising:
- a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm and the telescopic outrigger structure having a telescopically movable pipe bridge for transferring drill pipes and casings between the deck and the drilling rig.
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Abstract
A jack-up, movable drilling platform comprises a telescopic outrigger structure which is movable between a retracted position where it is located above the drilling platform'"'"'s deck and an extended position where it projects outwards and away from the deck, and a drilling rig which is securely attached to the outrigger structure.
35 Citations
29 Claims
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1. A jack-up, movable drilling platform, comprising:
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a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm and the telescopic outrigger structure having a telescopically movable pipe bridge for transferring drill pipes and casings between the deck and the drilling rig. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A jack-up, movable drilling platform, comprising:
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a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm and the telescopic outrigger structure comprises a telescopically movable gangway for connection between the deck and the drilling rig. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A jack-up, movable drilling platform, comprising:
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a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm, the telescopic outrigger structure comprises a telescopically movable pipe bridge for transferring drill pipes and casings between the deck and the drilling rig, the telescopic outrigger structure further comprising a telescopically movable gangway for connection between the deck and the drilling rig, the pipe bridge and the gangway being designed as a joint unit. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A jack-up, movable drilling platform, comprising:
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a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm, the inner arm comprises beams with an open cross section arranged to co-operate with a number of guides disposed on the deck, the outer arm comprising beams which are arranged inside the beams of the inner arm, the beams of the outer arm are arranged to co-operate with a number of guides disposed inside the beams of the inner arm, wherein the guides of the inner arm are provided with outwardly facing angled end sections to guide end portions of flanges of the inner arm upon movement thereof. - View Dependent Claims (26, 27)
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28. A jack-up, movable drilling platform, comprising:
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a deck;
a drilling rig;
a substructure, a telescopic outrigger structure with an inner arm which is attached to the deck movable in a direction between a retracted position located above the deck and an extended position where an external portion of the inner arm projects outwards and away from the deck; and
an outer arm attached to the inner arm, the outer arm being movable in the same direction between a retracted position located substantially retracted into the inner arm and an extended position where an external portion of the outer arm projects away from the inner arm, the drilling rig being securely attached to the external portion of the outer arm, the telescopic outrigger structure comprises jacks and co-operating gripping notches for intermittent moving of the inner arm. - View Dependent Claims (29)
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Specification