This document discusses 3D reservoir modeling and data integration. It provides definitions and outlines general workflows for modeling. Automated processes are emphasized to allow for more frequent model updates using all available data, including well logs, seismic, and production data. Integrating data from different sources and disciplines provides benefits like reduced uncertainty and a more realistic description of the reservoir. Various tools can be used to create 3D geological models and populate them with properties for dynamic simulation and reservoir performance analysis.