... to optimize sweep and drainage of oil using horizontal wells, one has to engineer an IOR project around the specific reservoir conditions prevailing in target locations and the interactions between horizontal wells and the main recovery mechanisms of the IOR project. Several limitations of the current...

... improve the ultimate oil recovery of the reservoir considerably. After 15 years of gas injection, field data combined with predicted data under natural depletion (solution gas drive, gas cap drive and gravity drainage combined) have shown that pressure maintenance would ultimately increase the recovery...

...) and field performance analysis (17–18) have demonstrated that very high oil recovery of residual oil is attainable if gravity drainage (the self propulsion of oil downwards in a reservoir) is the dominant production mechanism. A significant contribution of recent laboratory studies on tertiary...

... Abstract A series of experiments were performed in physical models saturated with heavy oils of 0.6 to 12.7 Pa.s. The oil was displaced by gravity drainage at constant pressure and it was produced using horizontal wells. The pressure was maintained either using a vacuum pump or by injection...