SEG-EAGE data files

Raw Data /book/3DI/Data/SEG/Salt/Sort/Sort.h
Common-azimuth Data /book/3DI/Data/SEG/Salt/ComAz/
Velocity Model /book/3DI/Data/SEG/Salt/Vel/Vel_SPK_SEG_WIND_400_good.H
Slowness model /book/3DI/Data/SEG/Salt/Vel/salt_slow_desp.h
Stack /usr/local/src/our/sepdatalib/seg-eage-salt/Dat/Salt-stack-h0-250.h
Zero-offset Migration none
Usage

• Traveltimes: () () () () ()
• Migration: ()
• AMO: ()
• Common-azimuth: () ()

Geometry

In3d:
-----------------------------------------------------------------
                 ********** Sort.h ************ 
          4 -esize          Synched          data_format-xdr_float 
-----------------------------------------------------------------
n1=625           o1=-0.080000    d1=0.008000     label1=time 
n2=2313656       o2=1.000000     d2=1.000000     label2=trace number 
Data: in=/book/3DI/Data/SEG/Salt/Sort/SORT_SCR/DATA_salt_sort.H@ 
    2313656 elements,  5784140000 bytes in data file 
-----------------------------------------------------------------
n2=2313656       o2=1.000000     d2=1.000000     label2=trace_number 
Headers in=/book/3DI/Data/SEG/Salt/Sort/SORT_SCR/DATA_salt_sort.H@@@ 
   57841400 elements,   231365600 bytes in data file 
-----------------------------------------------------------------
grid axis2       n2=2    o2=1.000000     d2=1.000000     label2=trace_in_bin 
grid axis3       n3=400          o3=770.000000   d3=20.000000    label3=cmp_x 
grid axis4       n4=400          o4=3800.000000          d4=20.000000    label4=cmp_y 
grid axis5       n5=34   o5=10.000000    d5=80.000000    label5=aoffset 
Grid   in=/book/3DI/Data/SEG/Salt/Sort/SORT_SCR/DATA_salt_sort.H@@@@@ 
   10880000 elements,    43520000 bytes in data file 
-----------------------------------------------------------------
Attr3dhead:
key               min       max         mean     nzero        rms         norm
sx            3860.0000  11700.0000   7780.4312  2313656   8115.8678 12344808.45
sy            1020.0000   8660.0000   5239.8931  2313656   5618.3059  8545840.28
gx            3720.0000  11840.0000   7780.4312  2313656   8116.3852 12345595.58
gy             500.0000   8660.0000   3981.2544  2313656   4474.9488  6806713.46
aoffset         20.0000   2683.6543   1266.6699  2313656   1481.9403  2254135.94
azimuth         -1.4289      1.4289      0.0000  2275288      0.2319      352.81
cmp_x          760.0000   8660.0000   4610.5737  2313656   5024.7714  7643032.36
cmp_y         3790.0000  11770.0000   7780.4312  2313656   8115.9970 12345005.07
offset_x     -2680.0000    100.0000  -1258.6385  2275288   1479.1035  2249820.91
offset_y      -140.0000    140.0000      0.0000  2313656     91.6515   139408.43

Problem Complex 3-D structure, faults & salt dome. Undersalt imaging.
History of Data Avaible for download from SEG/EAGE (website: http://wildcat.llnl.gov/SSD/ at the Lawrence Livermore National Laboratory)
Preprocessing Synthetic data
Proprietary Considerations Public

 

velmod
Figure 1 Velocity model

 

stack
Figure 2 Stacked data

 

twopass
Figure 3 Two-pass migration

 

split
Figure 4 Split-step migration