4. Measuring and testing
  5. Volume or rate of flow
  6. Using differential pressure

John J. Ryberg

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Analysis of drilling fluids

Radiant energy – Geological testing or irradiation – With sampling
Patent

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Analysis of drilling solids samples

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Apparatus and method for actively cooling instrumentation in a h

Refrigeration – Automatic control – Vacuumized chamber with open outlet
Patent

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Apparatus and method for directional drilling with downhole moto

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Apparatus and method for downhole tool deployment with mud pumpi

Wells – Processes – Placing or shifting well part
Patent

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Profile ID: LFUS-PAI-P-39503

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