Study on thermal stability of weakly crosslinked networks based on sulfonated polyacrylamide/scleroglucan for oil recovery applications

Maintaining the viscosity of aqueous polymer solution in harsh conditions like high temperature and/or high salinity is a challenge for enhanced oil recovery (EOR) applications. In this research, a series of of partially crosslinked sulfonated polyacrylamide (SPA)/ scleroglucan (SC) systems are prepared and their stability in electrolyte media are studied via rheological methods. The thermal stability of samples increased with increasing of their relaxation time. Results show that the SPA/SC/Cr3+ system exhibited the lowest viscosity loss in harsh condition; therefore it may be a potential candidate for enhanced oil recovery applications

کلیدواژه ها:

Sulfonated polyacrylamide ، Scleroglucan ، Oil Recovery ، Weak gel ، Thermal aging