4. Communications, electrical: acoustic wave systems and devices
  5. Seismic prospecting
  6. Well logging

Andrew J. Hayman

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Determining impedance of material behind a casing in a borehole

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent

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Formation imaging while drilling in non-conductive fluids

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

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Profile ID: LFUS-PAI-P-1864892

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