investigation of effective parameters on the performance of gravity drainage and reimbibition mechanisms in fractured reservoirs

The reimbibition phenomenon in fractured reservoirs has a great impact on the performance of gravity drainage process which is the main production mechanism in this kind of reservoirs# in this work, the effect of reimbibition phenomenon on gas oil gravity drainage investigated# then, the effect of fracture to matrix permeability ratio and gas injection rate on the performance of gravity drainage and reimbibition phenomenon in fractured reservoirs is quantified through a simulation study# according to the results, increasing the fracture to matrix permeability ratios decreases the oil recovery by gravity drainage at lower ratios# # on the other hand, decreasing the gas injection rate improves the performance of gravity drainage in fractured reservoirs# the reimbibition mechanism also has a great positive effect on the performance of gravity drainage in fractured reservoirs#