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Method for carrying out operations on petroleum and gas...

Wells – Submerged well – Including disaster feature
Reexamination Certificate

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Method for confirming the integrity of a seal system within...

Wells – Submerged well – Testing
Reexamination Certificate

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Method for detecting a leak in a drill string valve

Wells – Submerged well – Testing
Reexamination Certificate

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Method for dimensioning a riser element with integrated...

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

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Method for disconnecting a marine drilling riser assembly

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

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Method for drilling a plurality of offshore underwater wells

Wells – Submerged well – Multiple wells
Reexamination Certificate

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Method for drilling and completing a subsea well using small dia

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

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Method for drilling wellbores from an offshore platform

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

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Method for handling wellhead assembly

Wells – Submerged well
Patent

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Method for installing a well casing into a subsea well being...

Wells – Submerged well
Reexamination Certificate

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Method for installing and connecting a sub-sea riser

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

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Method for offshore production of hydrocarbons concurrently with

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

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Method for preventing critical annular pressure buildup

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

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Method for retrieving riser for storm evacuation

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

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Method for running casing while drilling system

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

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Method for servicing offshore well

Wells – Submerged well – Testing
Patent

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Method for thermally protecting subsea installations, and...

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

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Method of and apparatus for cutting and recovering of submarine

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

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Method of casing multilateral wells and associated apparatus

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

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Method of cementing from a floating vessel

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

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