You must log in to edit PetroWiki. Help with editing
Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. More information
Message: PetroWiki is moving to OnePetro! Please visit PetroWiki's new home here.
Glossary:Gamma ray log
Jump to navigation
Jump to search
Uses a scintillation crystal and a photomultiplier tube to measure naturally occurring and artificially induced gamma-ray radiation. The gamma-ray radiation is a signature of the formations in a well – very useful in depth control. Used in open hole or pipe and also used to spot changes in radiation (NORM scale) and radioactive tracers. Abbreviated GR.