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Lithology pair ratio: a ratio-based lithology indicator using pair production
Lithology pair ratio: a ratio-based lithology indicator using pair production
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机译:岩性成对比率:使用成对生产的基于比率的岩性指标
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摘要
The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating a formation lithology parameter. The method may include using gamma ray count or count rate information to estimate a formation lithology parameter that may be one of, but not limited to: Z2/A, bulk density, Z2*bulk density/A, linear attenuation coefficients, and porosity. The method may include using time-dependent ratios with a pulsed radiation source. The method may also include dividing gamma ray information by time and/or by energy window. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method.
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