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

John A. Duke

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Earth boring head

Boring or penetrating the earth – Boring without earth removal
Patent

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Hydraulic earth boring machine

Tool driving or impacting – With work engaging means supporting drive – Structure extends between opposed points
Patent

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Well cementing method and apparatus

Wells – Processes – Cementing – plugging or consolidating
Patent

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Well cementing method and apparatus

Wells – Processes – Cementing – plugging or consolidating
Patent

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Wellbore window milling method

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent

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Profile ID: LFUS-PAI-P-463572

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