Table 3 The combination of different input logging data sets.

From: Log interpretation method of resistivity low-contrast oil pays in Chang 8 tight sandstone of Huanxian area, Ordos Basin by support vector machine

NO

Input logging data sets

Prediction parameter

Combination 1

DEN, AC, CNL

Permeability

Combination 2

RT, DEN, AC, CNL

Combination 3

DEN, AC, CNL, ΔGR

Combination 4

DEN, AC, CNL, ΔSP

Combination 5

DEN, AC, CNL, ΔSP, POR

Combination 1

DEN, AC, CNL

Water Saturation

Combination 2

RT, DEN, AC, CNL

Combination 3

RT, DEN, AC, CNL, ΔGR

Combination 4

RT, DEN, AC, CNL, ΔSP

Combination 5

RT, DEN, AC, CNL, ΔSP, POR

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