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Abandonment and retrieval apparatus and method

Wells – Submerged well – Means removably connected to permanent well structure
Reexamination Certificate

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Anchor system for the transfer of fluids

Wells – Submerged well – Means removably connected to permanent well structure
Reexamination Certificate

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Anchored riserless mud return systems

Wells – Submerged well – Means removably connected to permanent well structure
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Anti-fouling covering for use in sub-sea structures

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus and method for supporting structures on offshore...

Wells – Submerged well – Means removably connected to permanent well structure
Reexamination Certificate

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Apparatus and method for the disposition of drilling solids...

Wells – Submerged well – Means removably connected to permanent well structure
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Apparatus and method for torsional and lateral centralizing...

Wells – Submerged well – Means removably connected to permanent well structure
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Apparatus for cementing from a floating vessel

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus for offshore production of hydrocarbon fluids

Wells – Submerged well – Means removably connected to permanent well structure
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Apparatus for oil/gas separation at an underwater well-head

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus for producing oil and gas offshore

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus for protecting wellheads and method of installing...

Wells – Submerged well – Means removably connected to permanent well structure
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Apparatus for protecting wellheads and method of installing...

Wells – Submerged well – Means removably connected to permanent well structure
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Apparatus for use in drilling a well at an offshore location

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus for use in placing a submarine structure on the sea be

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Apparatus for use in the completion of subsea wells

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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Arrangement for the removal of cuttings and gas arising from...

Wells – Submerged well – Means removably connected to permanent well structure
Reexamination Certificate

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Arrangement on a floating device for overhauling offshore...

Wells – Submerged well – Means removably connected to permanent well structure
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Blow out preventer transfer platform

Wells – Submerged well – Means removably connected to permanent well structure
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Bottom tensioned offshore oil well production riser

Wells – Submerged well – Means removably connected to permanent well structure
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