4. Wells
  5. With electrical means
  6. Electrical motor

Vitold P. Serafin

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Electro-hydraulic well tool actuator

Wells – With electrical means – Electrical motor
Patent

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Junk basket and method of use

Wells – Processes – Cleaning or unloading well
Reexamination Certificate

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Open hole straddle system

Wells – Processes – Placing or shifting well part
Patent

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Wireline set, tubing retrievable well packer with flow control d

Wells – Processes – Placing or shifting well part
Patent

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Profile ID: LFUS-PAI-P-1475630

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