Measurement and Prediction Method of Compressibility Factor at High Temperature and High Pressure

Table 9

Z-factor calculated by Z-LSSVM (700 K).

P/MPa			/%
1.3	0.956	0.947	0.86
1.35	0.950	0.945	0.52
1.4	0.945	0.943	0.12
1.45	0.938	0.941	0.34
1.5	0.931	0.939	0.85
1.55	0.924	0.937	1.41
1.6	0.916	0.935	2.02
1.65	0.909	0.933	2.65
1.7	0.901	0.931	3.25
1.75	0.894	0.929	3.79
1.8	0.888	0.927	4.23
1.85	0.884	0.925	4.51
1.9	0.881	0.923	4.60
1.95	0.880	0.921	4.46
2	0.882	0.919	4.09
2.05	0.885	0.917	3.51
2.1	0.890	0.915	2.75
2.15	0.896	0.913	1.84
2.2	0.903	0.911	0.86
2.25	0.91	0.909	0.12