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Petroleum Geology Acronyms


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Partial porosity from MRIL (single element) (PO10)

This is the name of a log measured along a well bore (a well-log). You could find this abbreviation PO10 in your log evaluation software or any (ASCII) log files provided by the logging company. The official name for this log is 'Partial porosity from MRIL (single element)'. The usage of this log is well established.

Use this log to investigate the contribution of porosity from a given "bin" (with certain characteristics) to the total porosity; e.g., in nuclear magnetic resonance data processing, the "bins" typically correspond to different pore size ranges. In general this log therefore displays units of the apparent porosity. In other words, 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.

Simply said, this is a log that describes the pore volume per unit gross volume. Porosity is determined from measurements on cores or interpreted from logs.

In general this log thus reflects units of the volume fraction. Better said, the ratio of the volumes occupied by two components, or by one component to the total volume of the system.

Data for this log is produced by a tool that uses a nmr logging technique and can be used to investigate the porosity of the formation. Similar logs are listed below:




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