Abstract: High quality chemical flooding resources of type I and II reservoir reserves have nearly run out in Shengli Oilfiled.
Type III reserves with high temperature and high salt reservoirs（reservoir temperature > 85 ℃，salinity > 30 000 mg/L）will
be in the main position in the tertiary oil recovery in the future. But in the implementation of polymer flooding process in
high temperature and high salt reservoir meets such problem as viscosity reduction after polymer comes across salt，high temperature
hydrolysis，and high temperature degradation，which has a serious impact on polymer flooding technology application.
Supramolecular system is a molecular gather system where a small molecules make self-assembly through the intermolecular
force. With super molecular engineering and supramolecular chemistry theory as the foundation，and by synthetizing three
kinds of efficient supramolecular products and oil displacement system，are make evaluation of oil displacement performance
of the synthesis of supramolecular system. Experiments show that RTS type supramolecular system viscosifying action effect
is remarkable，with good heat and salt resistance，and a good adaptability to sewage，and excellent ageing stability. Indoor
physical model experiments show that it is quite effective in improving oil recovery，and has good application prospect.

Key words: tertiary oil recovery, polymer flooding, Supramolecular, heat resistance and salt resistance, sewage adaptability