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Debris cap

Wells – Submerged well
Reexamination Certificate

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Deep ocean riser positioning system and method of running...

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

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Deep water hydrostatic head control

Wells – Submerged well – Including disaster feature
Patent

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Deep water hydrostatic head control

Wells – Submerged well – Including disaster feature
Patent

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Deep water intervention system

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

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Deep water riser assembly

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

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Deepwater intervention system

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

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Deepwater riser system

Wells – Submerged well – Riser
Patent

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Detecting outflow or inflow of fluid in a wellbore

Wells – Submerged well – Testing
Patent

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Development drilling system

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

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Device and method of collecting solids from a well

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

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Device for a down-hole assembly

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

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Device for connecting a collecting head input to the well head o

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

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Device for fitting an oil pipe stiffening sleeve on a...

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

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Device for installation and flow test of subsea completions

Wells – Submerged well – Riser
Reexamination Certificate

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Device for producing an effluent contained in a submarine geolog

Wells – Submerged well – Multiple wells
Patent

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Device for suspending a sub sea oil well riser

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

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Device for use for mounting and alignment of a christmas...

Wells – Submerged well – Wellhead
Reexamination Certificate

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Device to orient electrical connectors in a subsea well

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

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Disconnect tool

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

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