Specifications

University of Pretoria etd – Combrinck, M (2006)
MODEL 1: Two-layer earth
Layer Thickness Resistivity (conductivity)
1 100 m 50 ohm.m (0.02 S/m)
2 infinite 5 ohm.m (0.2 S/m)
0.01
0.1
1
10
0 50 100 150 200 250 300 350 400 450 500
Depth [m]
Apparent conductivity [S/m]
Input model
SLDT: no depth factor
SLDT: depth factor 1
SLDT: depth factor 2
SLDT: depth factor 3
TEMIX 2L inversion
TEMIX 10L smooth inversion
Figure 4-19: Comparison of S-layer differential transform (SLDT) solutions using different
depth factors and layered earth inversions of synthetic data for a two layer earth.
MODEL 2: Three-layer earth (thin conductive layer)
Layer Thickness Resistivity (conductivity)
1 150 m 50 ohm.m (0.02 S/m)
2 15 m 5 ohm.m (0.2 S/m)
3 infinite 50 ohm.m (0.02 S/m)
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