Application of waterflooding technique to the Angut oilfield in the northern part of Afghanistan

摘要

The purpose of the paper is to use the Buckley–Leverett frontal displacement theory to evaluate the recovery of oil by waterflooding for the Angut oilfield in northern Afghanistan. The waterflooding technique, in which oil is displaced by injecting water into the underlying petroleum reservoir, is investigated for the reservoir field where oil extraction has not been started. The effectiveness of the waterflooding technique is demonstrated by laboratory experiments using a horizontal plane model. The relative permeabilities of oil and water, residual oil saturation and irreducible water saturation are inspected through the experiments. The theory is then applied to the Angut oilfield to evaluate the amount of oil recovery from Angut oilfield by waterflooding technique.