Abstract
Academic Journal of Polymer science (AJOP) is a Journal which publishes state-of-the-art overview articles by internationally recognized authorities in polymer science and engineering. It covers all the areas of particular interest are biomedical applications,
Highlights
Carbonate reservoirs account for more than 60% of the world’s oil
Two plateau ranges are observed where the reservoir brine salinity is in the ranges of lower plateau, while low salinity brine is on the steep part of the graph in which the polymer viscosity is highly sensitive to the brine salinity
They concluded that the amount of the required polymer for obtaining a target viscosity is lowered by the usage of Low Salinity (LoSal) which is favorable for economic considerations
Summary
Carbonate reservoirs account for more than 60% of the world’s oil. due to the presence of the fracture network and oil-wet matrix, oil recovery from naturally fractured carbonate reservoirs has always been a challenging issue. The govern mechanism of polymer flooding is the viscosity enhancement of aqueous solution, while nanoparticles lead to the Interfacial Tension (IFT) reduction and wettability alteration of reservoir rocks. Common polymers such as Polyacrylamide (PAM) and Hydrolyzed PAM (HPAM) usually exhibit a high degree of chemical degradation against High Salinity and High Temperature (HSHT) reservoirs which results in the solution viscosity reduction with the salinity and temperature increment [1]. Application of thermoassociative polymers which are stable in high salinity and high temperature conditions, can be a good agent compensate for the effect of high salinity on polymers and it can be applied as a stabilizer for nanofluid solutions to obtain a higher stable nano-suspension
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