Radiant energy – Calibration or standardization methods
Reexamination Certificate
2005-06-07
2005-06-07
Gagliardi, Albert (Department: 2878)
Radiant energy
Calibration or standardization methods
C250S269100, C250S269400, C250S269300
Reexamination Certificate
active
06903330
ABSTRACT:
Techniques for calibrating well-logging sensors comprising emitting a first signal into a first calibration substance disposed proximate to the sensor, measuring a first sensor response from the first signal, emitting a second signal into a second calibration substance disposed proximate to the sensor, measuring a second sensor response from the second signal, and determining a sensor response function from the first sensor response and the second sensor response. One embodiment includes providing a well-logging sensor having a known response function, determining an expected range of a quality check response of the sensor using a quality-check substance with known properties, emitting a quality check signal into the quality-check substance, measuring the quality check response from the quality check signal, and comparing the expected range with the quality check response.
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Search Report from GB 0222688.4 dated Jun. 10, 2003.
Evans Michael L.
Ortenzi Luca
Radtke Richard J.
Echols Brigitte L.
Schlumberger Technology Corporation
Segura Victor H.
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