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Apparatus for offshore production of hydrocarbon fluids

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

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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 optimizing production of multi-phase fluid

Wells – Submerged well – Testing
Reexamination Certificate

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Apparatus for performing subsea through-the-flowline operations

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Patent

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Apparatus for preventing critical annular pressure buildup

Wells – Submerged well – With safety or emergency shutoff
Reexamination Certificate

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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 production in oil wells

Wells – Submerged well
Reexamination Certificate

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Apparatus for protecting wellheads and method of installing...

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

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Apparatus for protecting wellheads and method of installing...

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

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Apparatus for recovering a wellhead

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Patent

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Apparatus for remote adjustment of drill string centering to...

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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Apparatus for subsea wells including valve passageway in the...

Wells – Submerged well – Wellhead
Reexamination Certificate

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Apparatus for transferring fluid between the seabed and a...

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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Apparatus for transferring hydrocarbons from a subsea source...

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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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 lowering a well pipe into alignment with a

Wells – Submerged well – Connection or disconnection of submerged members remotely...
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 and method for regulating bottom hole pressures...

Wells – Submerged well – Riser
Reexamination Certificate

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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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