This document discusses reservoir correlation methods and tools. It defines correlation as connecting points between wells where the data suggests the points were deposited at the same time or have similar characteristics. This establishes static connectivity pathways in reservoir models. The document covers sequence stratigraphic correlation methodology using flooding surfaces and sequence boundaries. It also discusses various correlation tools including biostratigraphy, geochemistry, and pressure/production data. The document provides tips for robust 3D correlation and communicating between disciplines.