4. Wells
  5. Packers or plugs
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Backflow prevention device

Wells – Packers or plugs – With expanding anchor
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Backsurge well cleaning tool

Wells – Packers or plugs – With controllable bypass outside central conduit
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Backup shoe for well packer

Wells – Packers or plugs – Central support has shoulders expanding sealing portion – or...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Barrier tool for polished bore receptacle

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bellow seal and anchor

Wells – Packers or plugs – Adjustable over pipe or set over prepositioned pipe
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bi-directional pressure assisted sealing packers

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Blowout preventer testing apparatus

Wells – Packers or plugs – With controllable bypass outside central conduit
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bore hole plug

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bore hole plug

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Borehole closure

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Borehole packer

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bottom hole shut-in tool

Wells – Packers or plugs – With controllable passage between central conduit and space...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bottom lock pipe seal assembly

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bottom set downhole plug

Wells – Packers or plugs – With expanding anchor
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bridge plug

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bridge plug

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bridge plug for a well bore

Wells – Packers or plugs – Flow stopping type; e.g. – plug
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bridge plug for use in a wellbore

Wells – Packers or plugs – With expanding anchor
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Bulge control compression packer

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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