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

Table 6

Comparative analysis of the predicted scale amount of BS8 reservoir fluid and the experiment data.

Temperature (°C)	Pressure (MPa)	Scale amount (mg/l)			Error (%)
		Experimental results	Prediction results under phase equilibrium	Prediction results without phase equilibrium	Model with phase equilibrium	Model without phase equilibrium
171.4	43.57	1.36	1.42	0.85	4.44	67.27
	30	8.98	8.83	7.90	1.69	10.38
	20	14.52	13.89	12.71	4.35	8.12
	11.5	88.59	90.18	70.49	1.79	22.23
	5	281.67	292.98	216.10	4.01	27.29
155	30	1.24	1.22	0.38	1.62	67.31
	20	6.70	6.72	5.67	0.18	15.63
	11.5	12.36	11.65	9.91	5.73	14.07
	5	144.32	141.93	95.39	1.66	32.24
135	5	8.13	7.71	2.36	5.25	65.74