SCA2003-66: Shale Volume Estimates from NMR Core Data

Within reservoir evaluation there is a need to quantify shale volumes. This paper describes methodologies used to formulate a model to estimate shale volumes from NMR core plug data. The NMR signal from outcrop core plugs with a range of clay content and volume, at varying saturation states was measured. The study utilises the differing water adsorption properties of core plugs of varying clay content to calibrate a model that can directly predict shale volumes.