This session explores cutting-edge approaches to improve hydrocarbon recovery in complex reservoir environments. Topics include tracer-based diagnostics for surfactant huff-and-puff in unconventional plays, low-salinity EOR applications in mature sandstone fields, and advanced numerical modeling for CO2 processes. Presentations also cover analytical and compositional techniques for miscible WAG in carbonates, waterflood optimization strategies, and techno-economic evaluations of steam and CO2 injection in heavy-oil reservoirs.