4. Wells
  5. Means anchored against rotation in one conduit section for...

Dennis E. Roessler

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Acoustic attenuator, well logging apparatus and method of well l

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Acoustic Transducer for LWD tool

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Apparatus and method for determining the gravitational orientati

Measuring and testing – Borehole or drilling
Patent

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Displacement amplified acoustic transmitter

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Drill pipe downhole unthreading apparatus

Wells – Means anchored against rotation in one conduit section for...
Patent

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Profile ID: LFUS-PAI-P-279171

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