MITIGATION OF FINE MIGRATION USING NANO MATERIALS IN LIMESTONE RESERVOIRS; AN EXPERIMENTAL CASE STUDY FROM ABU ROACH FORMATION-F MEMBER, WESTERN DESERT, EGYPT

Abstract

Well productivity reduction has been commonly observed for oil and gas wells as a result of producing the reservoir fines. This phenomenon has been explained by the fine particles lifting, migration and subsequent pores plugging, which finally results in decreasing permeability. This problem has been observed in various core flood tests and field cases. Many techniques have been applied to mitigate this problem, but some have failed, others have low efficient performance or have caused wellbore plugged. This research is designed to study and evaluate formation damage due to fine migration in Limestone Formations (Abu Roash F member, Abu Roash Formation at The Western Desert of Egypt), which has resulted in considerable losses in well productivity. It is based on studying the fines trapping capacity of two Nano fluids "Alumina and Silica" in limestone cores, and evaluating the effect of reservoir fluid and other conditions on their performance.