4. Electricity: measuring and testing
  5. Of geophysical surface or subsurface in situ
  6. Using electrode arrays, circuits, structure, or supports

Roland E. Chemali

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Apparatus and methods for self-powered communication and...

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Apparatus and methods for self-powered communication and...

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Azimuthally oriented coil array for MWD resistivity logging

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent

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Compensation of magnetic influence in a MWD system

Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate

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Compensation of magnetic influence in a MWD system

Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-232828

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