Enhanced oil recovery techniques and CO2 flooding

Abstract

Tijekom godina je zanimanje za povećanjem iscrpka nafte (EOR) smanjeno zbog povećanja naftnih rezervi i proizvodnje. Ispitano je mnogo metoda, u laboratoriju i na terenu, kako bi se povećala proizvodnja nafte. Otkriće velikih naftnih polja u svijetu donijelo je na svjetsko tržište velike količine nafte. Uz to su procjene naftnih rezervi s nalazišta na Bliskom Istoku znatno povećane, što je dovelo do očekivanja da će ponuda nafte biti velika. Iako su velike količine nafte i dalje preostale u starim ležištima, primjenom EOR procesa se neće proizvoditi velike količine, ukoliko troškovi proizvodnje nafte primjenom tih procesa ne budu ekonomski mogli konkurirati troškovima proizvodnje nafte iz konvencionalnih izvora. Dok ležišta stare, pojavljuju se dvojbe između želje za očuvanjem bušotina za moguće EOR procese i pomanjkanja ekonomskih poticaja zbog postojanja velikih rezervi nafte u svijetu.Over the years, interest in enhanced oil recovery (EOR) has been tempered by the increase in oil reserves and production. Many techniques have been investigated in the laboratory and the field for improving oil recovery. The discovery of major oil fields in the world added large volumes of oil to the worldwide market. In addition, estimates of reserves from reservoirs in the Middle East increased significantly, leading to the expectation that the oil supply will be plentiful. Although large volumes of oil remain in mature reservoirs, the oil will not be produced in large quantities by EOR processes unless these processes can compete economically with the cost of oil production from conventional sources. Thus, as reservoirs age, a dichotomy exists between the desire to preserve wells for potential EOR processes and the lack of economic incentive because of the existence of large reserves of oil in the world