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Deep water riser system for offshore drilling

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Deep water slim hole drilling system

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Device for controlling underwater pressure

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Drill ahead tool

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Drilling fluid diverter system

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent

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Dual hoist system

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Reexamination Certificate

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Dual riser assembly, deep water drilling method and apparatus

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Reexamination Certificate

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