4. Wells
  5. Processes
  6. Cementing, plugging or consolidating

Clarence Eriksen

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Drop ball sub and system of use

Wells – Processes – Destroying or dissolving well part
Reexamination Certificate

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Pumpdown valve plug assembly for liner cementing system

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Velocity sensor

Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2130970

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