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Petroleum Geology Acronyms


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Conductivity from RTBR (CTBR)

This is an acronym for a well log used in the oil and gas industry. The code CTBR is a unique identifier to recognize this particular log and can be found in any (ASCII) log files provided by the logging company. The code stands for 'Conductivity from RTBR'. This log is not often acquired after (or during) drilling a well.

The values of this log represent the conductivity, measured by a laterolog (or guard log) resistivity device, which represents a measurement made several feet into the formation; generally considered a measurement of the undisturbed formation.

This log usually has the unit 'Conductivity'. This is the quantity of electricity transferred across unit area per unit potential gradient per unit time. In isotropic material, it is the reciprocal of Resistivity. Sometimes called Specific Conductance.

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







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