Performance Evaluation of STARPAM Polymer and Application in High Temperature and Salinity Reservoir

Table 7

The relationship between viscosity retention rate and aging time of three polymers.

Place time /(d)	Viscosity retention rate /(%)
	STARPAM	MO-4000	HPAM
0	100.00	100.00	100.00
1	111.47	102.62	104.96
3	108.18	99.92	96.49
7	106.50	94.56	92.93
15	99.88	91.69	90.20
30	95.65	88.68	87.47
60	90.49	82.63	81.09