4. Wells
  5. Packers or plugs
  6. With expanding anchor

David M. Haugen

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Air chamber actuated dual tubing release assembly

Wells – Processes – Disassembling well part
Patent

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Annulus pressure firer mechanism with releasable fluid conduit f

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor
Patent

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Annulus pressure firer mechanism with releasable fluid conduit f

Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent

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Annulus pressure operated vent assembly

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent

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Annulus pressure operated vent assembly

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent

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Profile ID: LFUS-PAI-P-8834

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