4. Measuring and testing
  5. Borehole or drilling
  6. Downhole test

Claude Fierfort

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Device for measuring the flow of fluid in a well

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Method and apparatus for detecting acoustic vibrations in a bore

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Seal and pressure balance system for an electrode-type logging s

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent

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Profile ID: LFUS-PAI-P-195503

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