Geoscience Reference
In-Depth Information
Offset (
X
)
a)
b)
CMP
CMP gathers
Sources
Dectectors
Location
Offset (
X
)
0.0
T
0
Normal
moveout
1
2
1
2
Location
Offset (
X
)
0.0
T
0
Normal
moveout
Location
Offset (
X
)
0.0
T
0
Normal
moveout
Correct for moveout
and then stack
c)
Location
Equivalent
source-detector
location
Offset (
X
)
0.0
T
0
Location
d)
Stacked
trace
T
0
Horizontal summation
Offset (
X
)
0.0
T
0
Normal-incidence stacked section
Display
zero-offset
data
Stacked
trace
Horizontal summation
1
Offset (
X
)
2
0.0
T
0
1
2
Cross-section
Stacked
trace
Horizontal summation
Figure 6.20
Schematic illustration of the procedure for creating a zero-offset stacked seismic section. The colour-coded traces, raypaths and
re
ection points correspond with those in
Fig. 6.16
. See text for explanation.
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