As wells age, production declines due to several factors. Messer and Nissan Chemical recently introduced a new Huff ‘N Puff process that combines gas and nanoparticles for synergistic recovery enhancement from declining wells. The RECHARGE HNP™ technology, suitable for both conventional and unconventional oil wells, has shown improvements of more than 500% in cumulative production. This white paper details the technology, treatment process, and production improvements in two central Texas, U.S., formations.