4. Wells
  5. Processes
  6. Cleaning or unloading well

Tom Unsgaard

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Inflatable downhole seal

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

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Method and apparatus for the removal of sand in an underwater we

Wells – Processes – Cleaning or unloading well
Patent

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Method and device for fluid displacement

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Well pump device

Wells – With junk retrieving means
Reexamination Certificate

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Wellbore primary barrier and related systems

Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-379034

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