A New Analyzing Theory and Method of C/O Spectrometry Logging
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Graphical Abstract
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Abstract
A new analyzing theory and method of C/O spectrometry logging is reported. Fast neutron enelastic scattering γray spectra(256 channels) were acquired in borehole by NaI(Tl) detector. The enelastic scattering γray from major elements C, O, Si, Ca, Fe, etc. have the fractions of mixed enelastic spectrum in formation respectively. Because F factor is the same for identical formation, then the ratio of yield of C to O, the ratio of weight percent of C to O, and the ratio of atoms C to O could be found, and the corresponding ratio of Ca to Si was found.
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