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Annular isolators for expandable tubulars in wellbores

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Apparatus for cleansing well liner and adjacent formations

Wells – Packers or plugs – Spaced sealing portions
Patent

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Composite multiple zone test tool

Wells – Packers or plugs – Spaced sealing portions
Patent

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Concentric steaming string downhole apparatus

Wells – Packers or plugs – Spaced sealing portions
Patent

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Device for intensification of hydrocarbon production and hydroca

Wells – Packers or plugs – Spaced sealing portions
Patent

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High expansion non-elastomeric straddle tool

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Hydraulic open hole packer

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Hydraulic open hole packer

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Inflatable packer assembly

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Isolation packer extension

Wells – Packers or plugs – Spaced sealing portions
Patent

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Jet-type well screen cleaner

Wells – Packers or plugs – Spaced sealing portions
Patent

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Logging plug with high integrity internal seal

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Measurement port coupler and probe interface

Wells – Packers or plugs – Spaced sealing portions
Patent

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Metal-to-metal/elastomeric pack-off assembly for subsea wellhead

Wells – Packers or plugs – Spaced sealing portions
Patent

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Method and apparatus for injecting one or more fluids into a...

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Method and apparatus for wellbore fluid treatment

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Method and apparatus for wellbore fluid treatment

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Methods and apparatus for injecting fluids at a subterranean...

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

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Packer assembly

Wells – Packers or plugs – Spaced sealing portions
Patent

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Pneumatic packer

Wells – Packers or plugs – Spaced sealing portions
Patent

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