4. Radiant energy
  5. Geological testing or irradiation
  6. Well testing apparatus and methods

John E. Edwards

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Compensation of errors in logging-while-drilling density...

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
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Equi-pressure geosteering

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Reexamination Certificate

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Measurement while drilling electromagnetic telemetry system...

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

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Method for determining wellbore diameter by processing...

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

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Method for increasing the efficiency of drilling a wellbore,...

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
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Profile ID: LFUS-PAI-P-2144500

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