4. Optics: measuring and testing
  5. Oil testing

Paul Bergren

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Downhole sorption cooling and heating in wireline logging...

Refrigeration – Structural installation – With electrical component cooling
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Method and apparatus for a derivative spectrometer

Optics: measuring and testing – By shade or color – With color transmitting filter
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Method and apparatus for a downhole fluorescence spectrometer

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
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Method and apparatus for a downhole fluorescence spectrometer

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
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Method and apparatus for a downhole refractometer and...

Optics: measuring and testing – Refraction testing
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Profile ID: LFUS-PAI-P-2350482

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