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Keywords: calibrate mark
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Proceedings Papers

Paper presented at the SPWLA 8th Annual Logging Symposium, June 12–14, 1967
Paper Number: SPWLA-1967-V
... Resisitivity curve is zero to 200 ohm meters increasing to the right. Zero marks in magnetic ink are at the bottom. Calibrate marks are lust above the zero marks. In operation, the log is adjusted in the scanner in depth so that the scanner disk is on the zero marks. Zero readings are set by panel zero knobs...

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