4. Communications, electrical: acoustic wave systems and devices
  5. Wellbore telemetering

David A. Close

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Downhole vibration monitoring of a drillstring

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering
Patent

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System and method for determining the inclination of a wellbore

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1576830

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