One-half to two-third of the oil ever found is still in the reservoir even after primary and secondary production.
Microbial enhanced oil recovery (MEOR) is one of the tertiary methods applied to increase oil recovery.
Hajnalka Füvesi, Ákos Koós, Péter Kesserű, PhD, Ágnes Dergez, Margit Balázs, István Kiss, PhD, Imre Mécs, DSc, Sándor Puskás, Dr.