Formulation Development of High Strength Gel System and Evaluation on Profile Control Performance for High Salinity and Low Permeability Fractured Reservoir

Table 1

The experimental results of different ABP systems in 29500 mg/L salinity water.

Formulations				Delayed crosslinking time; (days)	Gel strength (mPa·s)	Initial viscosity (mPa·s)	Stability (days)
Scheme number	Polymer P (mg/L)	Crosslinking agent A; (%)	Coagulant B (%)
1	1500	0.2	0.05	7-8	>4000	12.0	>30
2	1500	0.3	0.09	7-8	>2000	12.0	>30
3	1500	0.4	0.13	6-7	>1000	12.0	>30
4	2500	0.2	0.09	—	—	22.6	—
5	2500	0.3	0.13	—	—	22.6	—
6	2500	0.4	0.05	5-6	>8500	22.6	>60
7	3500	0.2	0.05	5-6	>13000	33.0	>60
8	3500	0.3	0.09	5-6	>14500	33.0	>60
9	3500	0.4	0.13	3-4	>10500	33.0	>60