Machine Learning Method for TOC Prediction: Taking Wufeng and Longmaxi Shales in the Sichuan Basin, Southwest China as an Example

Table 2

Statistical information of the input data for verifying the universality of the model.

Statistical information	RT (Ω·m)	GR (API)	AC (μs/ft)	CAL (inch)	CNL (%)	DEN (g/cm^3)	SP (mV)	TOC (%)
Maximum value	351.04	253.64	89.72	12.20	23.87	2.74	96.68	5.43
Minimum value	6.33	110.41	62.57	8.63	9.87	2.43	18.51	0.26
Average value	74.44	169.31	72.40	8.89	16.27	2.65	47.36	2.11
Standard deviation	54.00	18.66	6.27	0.46	3.13	0.07	21.92	1.12