Geoscience Reference
In-Depth Information
Shot gathers
Detector
Location (
X
)
Source 1
ABCDEF
Source 1 A
B
C
D
E
F
Offset (
X
)
V
1
V
2
V
1
V
2
Source 2
ABCDEF
Source 2 A
B
C
D
E
F
Offset (
X
)
Source 3
ABCDEF
Source 3 A
B
C
D
E
F
Offset (
X
)
Source 4
ABCDEF
Source 4 A
B
C
D
E
F
Offset (
X
)
Source 5
ABCDEF
Source 5 A
B
C
D
E
F
Offset (
X
)
Source 6
ABCDEF
Source 6 A
B
C
D
E
F
Offset (
X
)
Source 7
ABCDEF
Source 7 A
B
C
D
E
F
Offset (
X
)
Source 8
ABCDEF
Source 8 A
B
C
D
E
F
Offset (
X
)
Figure 6.16
Schematic illustration of 2D continuous seismic profiling. The coloured raypaths and traces are associated with three reference
points on the reflecting interface. Note the repeated recording of reflections from these points for each shot location. Only reflected arrivals are
shown in the shot gathers.
them to have different
(moveouts) on a
filtering, may be used to remove those arrivals which are
noise (see Trend in
Section 2.7.4.4
).
'
apparent dips
'
Pre-processing
Pre-processing is the term used to describe operations
carried out to prepare datasets for processing. It involves
basic operations such as converting the data to standard
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