A practical approach using integrated teams and better resource management practices enhancing hydrocarbon recovery and maximizing profitability. Contents: Reservoir management concepts & process Integrated technology - geoscience & engineering Waterflood data Factors influencing waterflood recovery Infill drilling Design of waterfloods: geological, engineering & operational aspects Waterflood production performance & reserves forecast Waterflooding surveillance techniques Field operations Waterflood project economics Case studies Conclusion & future challenges Appendices.