4. Wells
  5. Valves, closures or changeable restrictors
  6. Longitudinally movable operator

Michael E. McMahan

Inventor

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Above packer perforate test and sample tool and method of use

Wells – Processes – Sampling well fluid
Patent

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Circulation valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Compliant cladding seal/hanger

Wells – Expansible anchor or casing – Expansible casing
Reexamination Certificate

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Compliant cladding seal/hanger

Wells – Expansible anchor or casing – Expansible casing
Reexamination Certificate

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Cup seal expansion tool

Wells – Processes – Assembling well part
Reexamination Certificate

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Profile ID: LFUS-PAI-P-220091

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