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Abstract
Permeability Restoration of Saudi Arabia rocks
Osama A. El-Mahdy
During completion operation, filtrate and colloidal particles present in the completion fluids may alter and reduce the reservoir production. Laboratory tests were conducted to study the formation damage potential of high-density brine completion fluids for various sandstone core samples. The results obtain that both amount and type of clay content have strong effect on permeability restoration. For dirty sandstone formation, permeability restoration caused by addition ZnBr2 is more than that by addition surfactant; however for clean sandstone formation permeability restoration caused by addition surfactant is more than that by addition ZnBr2.
