Gamma Rays are high-energy electromagnetic waves which are emitted by atomic nuclei as a form of radiation. Gamma ray log is measurement of natural radioactivity in formation verses depth. It measures the radiation emitting from naturally occurring U, Th, and K. It is also known as shale log. Gamma Ray log reflects shale or clay content. Clean formations have low radioactivity level. It Correlation between wells and determination of bed boundaries.
Gamma Ray Log
