4. Wells
  5. Expansible anchor or casing
  6. Expansible means translated by wedge or cam

Petroline Wireline Services Limited

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Downhole lock assembly

Wells – Expansible anchor or casing – Expansible means translated by wedge or cam
Patent

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Lock mandrel for downhole assemblies

Wells – Expansible anchor or casing – Liner hanger
Patent

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Self-piloting check valve

Fluid handling – Systems – Flow path with serial valves and/or closures
Patent

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Upstroke jar

Wells – With jar means for releasing stuck part
Patent

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