14.3.2 Geologic Features

Objects that exist a priori, in the natural world, for example: the rock formations and how they are positioned with regard to each other; the fluids that are present before production; or the position of the geological intervals with respect to each. Some of these objects are static—such as geologic intervals---while others are dynamic—such as fluids; their properties, geometries, and quantities may change over time during the course of field production.