This document provides an overview of carbonate sedimentology and techniques for interpreting carbonate reservoirs using well logs, image logs, and core data. It discusses how carbonates differ from clastic reservoirs in terms of biogenic processes and diagenesis. Key carbonate depositional environments, textures, structures, and facies are described. Examples of carbonate features identified on well logs and images are presented alongside core photos for calibration. Interpretation of fractures is also addressed.