Tag Archives: shale volume linear method

Shale volume refers to the proportion of shale, which is a fine-grained sedimentary rock, present in a given formation. It is an important parameter in the study of subsurface geology, as it affects the rock’s ability to store and transmit fluids such as oil and gas. The Larionov method is …

Gamma Ray Index Where:IGR= gamma ray index (dec)GR (log)= gamma ray reading of formation (API)GR (min)= minimum gamma ray (clean sand or carbonate) (API)GR (max)= maximum gamma ray (shale) (API) Recommended for You Shale Volume – Larionov (1969) Old Rocks