URSEIS '95 explosive
URSEIS '95 Vibroseis:
| General information | Recorded | June-November 1995 |
by | Spetsgeofisika, Moscow, Russia |
for | GFZ Potsdam, Germany |
Area | Southern Urals |
Profile length | 510 km => 465 km crooked line |
Total data amount | 30.7 Gigabyte |
| Recording | Recording System | Input/Output-Two |
Sample rate | 4 ms |
Number of channels | 360 |
Field filter | no low cut, no notch, antialias 70Hz/191 dB |
Noise Reduction | burst-edit + diversity stack |
Correlation | with filtered sweep |
Recording Format | SEGD, cartridge 3480 |
Recording Time | 25 s |
| Receivers | Geophone type | 10 Hz, vertical |
Geophones/Group | 12 fold |
Receiver array | In-line, 50 m |
Group spacing | 50 m |
No. of geophone points | |
Spread length | 18000 m |
| Sources | Source type | Vibroseis |
Number of vibrators | 5 |
Sweep length | 30 s |
Sweep range | 10 - 64 Hz, linear |
Recording Configuration | symmetrical split-spread
9000 m-VP-9000 m, no gap |
Source spacing | 100/150 m |
Number of source points | 3326 |
Pattern length | |
Vertical stacking rate | 10 fold |
CMP's
| Coverage (theor./real) | 60-90 fold |
CMP-spacing | |
Number of CMP's | |
URSEIS '95 explosive:
| General information | Recorded | June-November 1995 |
by | Spetsgeofisika, Moscow, Russia |
for | GFZ Potsdam, Germany |
Area | Southern Urals |
Profile length | 371 km -> 335 km crooked line |
Total data amount | 8 Gigabyte |
| Recording | Recording System | Input/Output-Two |
Sample rate | 4 ms |
Number of channels | 360 |
Field filter | no low cut, no notch, antialias 70 Hz/191 dB |
Recording Format | SEGD, cartridge 3480 |
Recording Time | 65 s |
| Receivers | Geophone type | 10 Hz, vertical |
Geophones/Group | 12 fold |
Receiver array | In-line, 50 m |
Group spacing | 60 m |
No. of geophone points | |
Spread length | 18000 m |
| Sources | Source type | explosive |
Charge/shot | 80 kg |
No. of shot holes/shot | 2 |
Depth of shot hole | 25-30 m |
Tamping | |
Recording Configuration | Vibroseis spread was used for off-end shooting |
Source spacing | 3 km |
Number of source points | 337 |
CMP's
| Coverage (theor./real) | 6 fold |
CMP-spacing | |
Number of CMP's | |
