Measuring and testing – Borehole or drilling – Downhole test
Patent
1985-03-07
1986-06-10
Myracle, Jerry W.
Measuring and testing
Borehole or drilling
Downhole test
33312, E21B 47022
Patent
active
045935599
ABSTRACT:
The invention relates generally to mapping or survey apparatus and methods, and more particularly concerns efficient transmission of survey signals or data from depth level in a borehole or well to the well surface, for analysis, display or recordation; further it concerns efficient transmission of command data from a surface computer unit to the survey tool at depth level in a borehole or well for control of instrumentation operating modes, operating characteristics, or diagnostic purposes; and further it concerns supply of DC power downwardly to the instrumentation via a wireline by which such command signal and survey data or signals may be transmitted upwardly or downwardly respectively.
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Brown David C.
Engebretson Harold J.
Watson Fred L.
Applied Technologies Associates
Haefliger William W.
Myracle Jerry W.
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