... for two detectors can be expressed as: LRHO = ( spacing ) / ( ln ( IRA ) − ln ( FAI ) ) porosity neutron porosity log analysis log example cased-hole neutron odom well logging sensitivity upstream oil & gas gamma ray detector flux density measurement pulsed...

.... The correlation with open-hole porosities is demonstrated in several of the log examples. Through application to some typical reservoir description and optimization problems, the log examples show the utility of these measurements in cased-hole reservoir analysis. odom gamma source neutron porosity log...