Petrophysical Regression regarding Porosity, Permeability, and Water Saturation Driven by Logging-Based Ensemble and Transfer Learnings: A Case Study of Sandy-Mud Reservoirs

Table 2

Summary of quartile-based statistical information of applied well logs.

log^1	AC (μs/m)	CNL (%)	DEN (g/cm^3)	GR (API)	SP (mV)	PE (b/e)	AT10 (Ω·m)	AT20 (Ω·m)	AT30 (Ω·m)	AT60 (Ω·m)	AT90 (Ω·m)
Value	212.80	22.05	2.62	92.90	84.32	3.35	19.07	17.48	16.64	15.98	15.63
	204.64	20.46	2.62	82.80	83.01	3.33	24.73	20.40	19.22	18.14	17.83
	202.41	18.37	2.61	78.19	81.60	3.31	25.58	18.86	17.49	16.36	16.08
	230.86	21.03	2.50	96.94	52.34	2.71	8.63	6.12	5.19	4.64	4.51
	232.66	21.58	2.50	91.91	51.94	2.71	8.95	6.29	5.30	4.72	4.59
	235.76	22.22	2.50	82.69	51.62	2.74	9.63	6.69	5.60	4.98	4.84
	Max	330.12	76.56	2.68	150.23	88.26	4.22	73.08	41.19	38.88	39.86	40.45
Min	183.99	9.16	1.53	40.49	23.93	1.72	1.70	2.09	2.78	1.95	1.73
	223.98	19.82	2.41	72.60	43.39	2.74	7.58	6.29	5.07	4.00	3.74
	247.38	24.06	2.59	102.58	80.25	3.21	14.43	13.13	12.86	12.76	12.78
IQR^2	35.10	6.37	0.28	44.97	55.28	0.71	10.28	10.26	11.69	13.14	13.56
LIF^3	188.88	13.45	2.13	27.63	-11.89	2.04	-2.70	-3.97	-6.62	-9.14	-9.82
UIF^4	282.48	30.43	2.88	147.55	135.53	3.92	24.71	23.39	24.55	25.90	26.35