New method for predicting n-tetradecane/bitumen mixture density: correlation development | Oil & Gas Science and Technology

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Table 5.

Comprehensive error investigation of the new method estimating bitumen/n-tetradecane mixture density for different values of solvent concentration.

	W _S
	0.05	0.1	0.2	0.3	0.4	0.5
N	55	55	55	55	55	55
	966.70	951.40	921.50	893.90	866.80	841.60
	981.37	966.57	936.88	909.37	882.93	858.11
	994.70	980.70	950.50	923.30	897.20	872.90
D ^min	−1.5957	−5.8909	−6.5662	−2.3167	−0.3241	−4.2832
D ^max	11.3382	5.9291	3.3183	7.1059	8.7189	5.4553
AD	1.9149	−2.8485	−4.1446	−0.2166	1.5040	−2.0721
AAD	2.4655	3.7445	4.6277	1.6815	1.5920	2.6331
ARD (%)	0.1964	−0.2947	−0.4417	−0.0236	0.1702	−0.2426
AARD (%)	0.2521	0.3867	0.4934	0.1850	0.1802	0.3124
MSE	13.4399	16.6813	23.5997	5.0540	6.3763	8.7530
RMSE	3.6660	4.0843	4.8580	2.2481	2.5251	2.9585
SD	0.0038	0.0042	0.0052	0.0025	0.0029	0.0035
CV	0.0004	0.0004	0.0006	0.0003	0.0003	0.0004
r	0.9632	0.9648	0.9684	0.9707	0.9736	0.9742
R ²	0.9278	0.9308	0.9379	0.9423	0.9479	0.9491

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