Modeling of Partially Hydrolyzed Polyacrylamide-Hexamine-Hydroquinone Gel System Used for Profile Modification Jobs in the Oil Field

Table 5

Experimental values of gelation time at different polymer concentration, temperature and pH 7.5 (Constant crosslinker concentration HMTA/HQ 0.3/0.3 wt%).

Sl. No.	Polymer	Crosslinkers		Experimental values of gelation time; (hrs.)	Theoretical values of gelation time; (hrs.)	Temperature; (°C)
	PHPA; (wt%)	HMTA; (wt%)	HQ; (wt%)
1	0.8	0.3	0.3	451	629.6609	80
2	0.9	0.3	0.3	362	341.5637
3	1.0	0.3	0.3	216	197.63
4	1.1	0.3	0.3	111	120.476
5	0.8	0.3	0.3	311	313.9109	90
6	0.9	0.3	0.3	158	170.283
7	1.0	0.3	0.3	102	98.5264
8	1.1	0.3	0.3	55.3	60.0621
9	0.8	0.3	0.3	170	162.4459	100
10	0.9	0.3	0.3	82	88.1198
11	1.0	0.3	0.3	58	50.9864
12	1.1	0.3	0.3	30	31.0815
13	0.8	0.3	0.3	86	87.0051	110
14	0.9	0.3	0.3	66	57.1604
15	1.0	0.3	0.3	24.3	27.308
16	1.1	0.3	0.3	15	16.6471
17	0.8	0.3	0.3	45	48.1034	120
18	0.9	0.3	0.3	23	26.094
19	1.0	0.3	0.3	14	15.098
20	1.1	0.3	0.3	10	9.2038