... contact angle measurement tests as well as spontaneous imbibition tests. The oil recovery results by core flooding experiments showed a noticeable improvement by switching to the diluted brines. Results of wettability study showed that, due to the lack of sufficient active ions and relatively low...

... to improve production and recovery of heavyoil, especially in the Middle East. enhanced recovery oil reservoir viscosity oil phase spontaneous imbibition test Chemical Injection Implementation concentration oil production steam injection heavy oil reservoir Oil Recovery chemical solution...