Application of discriminant score /∆ log r method for prediction of Organic richness at negelah well, coastal Mediterranean zone, western desert Egypt
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Both sonic, resistivity and temperature information are used in an integrated manner in order to identify the organic richness of the shally intervals allover the Albian - Aptian rock sequence in Negelah well located at the north western coastal zone of Egypt. The sonic / resistivity cross plot are first used for calculation of the discriminant value (D). The A logR method is used in order to determine the TOC with the help of the temperature information. The results obtained from both methods gave confirmed results. The step comprising the conversion of the A logR values to TOC is not carried out because their values lie in the negative range.