Abstract

A facies is a distinctive rock unit that forms under certain conditions of sedimentation, reflecting a particular process or environment. To depict the geological process both during and after deposition facies identification and its modelling in 3D space play a vital role in 3D reservoir model. Identification of different reservoir facies and defining its connectivity along with variation of reservoir property is the basic need of geo-modelling process. To address this, delineation of different facies required detailed core analysis, sedimentological studies and in- depth petrophysical analysis. After ascertaining the identification of different facies at well locations their mapping with connectivity in 3D space is required. The facies is defined as numerical values, therefore, data analysis in the geological context and its spatial relationship become essential to reach some logical conclusion.