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Petroleum Geology Acronyms


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Cconductivity derived porosity from RIPD (CDPP)

This is the name of a log measured along a well bore (a well-log). You might have encountered this acronym CDPP in your log evaluation software or any (ASCII) log files provided by the logging company. The abreviatin stands for 'Cconductivity derived porosity from RIPD'. This log is not often acquired after (or during) drilling a well.

This log can be used to evaluate the initial estimate of porosity, normally from logs, not corrected for the (often large) effects of clays, gas, etc. Such estimates should only be used for qualitative interpretation of clean, gas-free intervals. At a higher level, this can be seen as a measure of the volume fraction. This is a measure of the ratio of the volumes occupied by two components, or by one component to the total volume of the system.

This log usually has the unit 'Porosity'. This is the pore volume per unit gross volume. Porosity is determined from measurements on cores or interpreted from logs.

Data from this log can be used to investigate the porosity of the formation. Similar logs are listed below:




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