4. Wells
  5. Pistons, fluid driven into well
  6. With downflow past piston

Karl K. LaFleur

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Cementing plug

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

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Cementing plug

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Cementing plug

Wells – Pistons – fluid driven into well – With downflow past piston
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Cementing plug

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Cementing plug

Wells – Pistons – fluid driven into well – With stop
Patent

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Profile ID: LFUS-PAI-P-710585

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