4. Wells
  5. Expansible anchor or casing
  6. Expansible casing

David Graham Hosie

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Closed loop multiphase underbalanced drilling process

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Closed loop multiphase underbalanced drilling process

Wells – Processes – Separating material entering well
Reexamination Certificate

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Expanding tubing

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Expanding tubing

Wells – Expansible anchor or casing – Expansible casing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2860976

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