4. Wells
  5. Packers or plugs
  6. Controllable passage through packer

Entreprise de Recherches et d'Activities Petrolieres Elf

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Device for automatic analysis mass spectrometry

Radiant energy – Ionic separation or analysis – With sample supply means
Patent

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Method and device for rapid chromatographic separation

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent

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Safety plug for sealing-off the tubing of a producing oil or gas

Wells – Packers or plugs – Controllable passage through packer
Patent

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Profile ID: LFUS-PAI-P-893086

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