Comprehensive Research of Scaling Prediction for Gas Reservoir Fluid considering Phase State

Table 5

Comparative analysis of scale amount in electrolyte solution.

Mass fraction (%)	Scale amount (mg/l)			Error (%)
	Experimental results	Prediction results under phase equilibrium	Prediction results without phase equilibrium	Model without phase equilibrium	Model with phase equilibrium
0	0.00	0.00	0.00	0.00	0.00
10	360.02	370.24	370.54	2.70	2.70
20	330.54	320.21	340.74	3.00	3.00
30	260.17	250.54	250.35	3.80	3.80
40	210.32	220.87	210.21	4.70	0.00
50	160.28	140.03	150.32	12.50	6.20
60	130.14	110.58	120.33	15.30	7.60
70	100.70	80.31	90.91	20.00	10.00
80	70.21	60.68	75.35	14.20	7.10
90	40.36	50.25	45.23	25.00	12.50
100	0.00	0.00	0.00	0.00	0.00