The new deep treating agent JY-8 is a good fixative and flocculant,which can form high strength gels with polymers,consolidating and flocculating residual polymers in the reservoir effectively,realizing unification of the two agents,and achieving the goals of deep profile control and oil displacement for the formations.

Selection and application of YG340-1 residual polymer reuse agent in post-polymerflooding formations;

Presence and distribution of residual polymer in formation;