Temperature-resistance salt-resistance foam profile controlling and displacement system suitable for complex oil reservoirs and preparation method and application of system

The invention provides a profile controlling and displacement system. The system is prepared from, by weight, 1%-3% of nanometer titanium dioxide, 0.2%-0.9% of cetyl trimethyl ammonium bromide, 0.01%-0.3% of partially-hydrolyzed polyacrylamide and the balance water. The invention further provides a preparation method and application of the profile controlling and displacement system and a displacement method which adopts the profile controlling and displacement system and is used for oil reservoirs for reservoir oil. The profile controlling and displacement system is suitable for complex oil reservoirs with harsh conditions, has the advantages of temperature resistance and salt resistance and can achieve the excellent effect of displacement of the reservoir oils. 本发明提供了一种调驱体系，以重量百分比计包括：1％～3％纳米二氧化钛，0.2％～0.9％十六烷基三甲基溴化铵，0.01％～0.3％部分水解聚丙烯酰胺，和余量的水。本发明还提供了该调驱体系的制备方法、用途以及采用该调驱体系用于油藏的驱油方法。本发明的调驱体系适用于条件苛刻的复杂油藏，具有耐温耐盐的特性，能够实现优异的驱油效果。