Specifications

University of Pretoria etd – Combrinck, M (2006)
0.0001
0.001
0.01
0.1
1
0 100 200 300 400 500 600
Depth [m]
Imaged Conductivity [S/m]
0.04 S/m
0.2 S/m
2 S/m
10 S/m
Figure 4-32: Imaged conductivity versus depth for a 15m thick layer of varying conductivity at
150m depth in a 0.02 S/m half space.
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0 100 200 300 400 500 600
Depth [m]
Imaged Conductivity [S/m]
(0.04 and 0.2 S/m)
-0.005
0
0.005
0.01
0.015
0.02
0.025
0.03
0.035
0.04
0.045
Imaged Conductivity [S/m]
(2 and 10 S/m)
0.04 S/m
0.2 S/m
2 S/m
10 S/m
Figure 4-33: Imaged conductivity versus depth for a 15m thick layer of varying conductivity at
150m depth in a 0.02 S/m half space; linear scale.
The S-layer transform is clearly very sensitive to conductive layers and even with a
conductivity contrast of 1:2 (0.02:0.04) is still able to resolve the layer. Depths for the low
75