4. Wells
  5. Packers or plugs
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Apparatus for isolating zones in a well

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Reexamination Certificate

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Apparatus for operating a downhole tool using coil tubing

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for positioning a liner on a tubular member in a well

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for releasably bridging a well

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for releasing a ball into a wellbore

Wells – Packers or plugs – Flow stopping type; e.g. – plug
Reexamination Certificate

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Apparatus for running, setting and testing a compression-type we

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for sealing a well casing

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for sealing a well casing

Wells – Packers or plugs – Flow stopping type; e.g. – plug
Patent

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Apparatus for selective disengagement of a fluid transmission co

Wells – Packers or plugs – With detachable setting means
Patent

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Apparatus for selectively injecting treating fluids into earth f

Wells – Packers or plugs – With central conduit and fluid port to space outside
Patent

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Apparatus for setting a high temperature packer

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for setting and locking packing assemblies in wellhead

Wells – Packers or plugs – With detachable setting means
Patent

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Apparatus for setting and retrieving a bridge plug from a subter

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

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Apparatus for setting hydraulic packers and for placing a gravel

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for testing selected zones of a subterranean bore

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

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Apparatus for treating well bores

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for treating wells

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for use in controlling flow through a tubing string su

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for well completion operations

Wells – Packers or plugs – With expanding anchor
Patent

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Apparatus for well treating

Wells – Packers or plugs – Flow stopping type; e.g. – plug
Patent

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