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Adjustable isolation sleeve

Wells – Submerged well – Wellhead
Patent

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Adjustable surface well head casing hanger

Wells – Submerged well – Wellhead
Patent

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Adjustable wellhead connector

Wells – Submerged well – Wellhead
Patent

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Annulus porting of horizontal tree

Wells – Submerged well – Wellhead
Patent

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Apparatus and method for free-fall installation of an...

Wells – Submerged well – Wellhead
Reexamination Certificate

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Apparatus and method for returning drilling fluid from a...

Wells – Submerged well – Wellhead
Reexamination Certificate

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Apparatus for drilling an offshore underwater well

Wells – Submerged well – Wellhead
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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