Recording system |
Sercel
LiteTM
|
Survey geometry |
asymmetric split spread,
roll-along |
No. of receivers
|
Wireless: 421 (1-1961 locations)
Streamer: 20 (17,546 locations)
|
No. of shots |
7351 (at 1887 shot points, 4 sweep records/point
in most places) |
Nominal shot/receiver spacing |
20 m |
Maximum offset |
~ 7290 m |
Source type |
Two 12t, Mini-vibs, 10-140 Hz linear, 18 s long,
peak force of 95 kN per vibrator |
Geophone
|
Wireless: vertical 10 Hz, spike
Streamer: three component (3C) MEMs, only vertical used for
analysis
|
Sampling interval |
1 ms |
Record length |
32 s (15 s after
cross-correlation) |
Wireless data downloading |
Based on landstreamer GPS-time
tagging |
Total no. of traces
|
Wireless: 701,020
Streamer: 34,435
|
Maximum CMP fold
|
Wireless: 382
Streamer: 97
|
Geodetic surveying |
DGPS corrected where needed using national
elevation grid data |