data files

Raw Data /data_3d/elf_north_sea/2D-synth/elfdata.HH
Velocity Model /data_3d/elf_north_sea/2D-synth/elfvel.HH
Stack ???
Zero-offset Migration ???
Usage Malcotti and Biondi (1997, 1998); Prucha et al. (1998)
Geometry

In3d:
-----------------------------------------------------------------
                 ********** Dat/elfdata.HH ************
          4 -esize                           data_format-xdr_float
-----------------------------------------------------------------
n1=1250                  o1=0.000000     d1=0.004000     label1=time (s)
n2=127           o2=190.00000    d2=0.025000     label2=offset (m)
n3=199           o3=50.000000    d3=50.000000    label3=source location (m)
Data: in=/data_3d/elf_north_sea/2D-synth/elfdata.HH@
      25273 elements,   126365000 bytes in data file
-----------------------------------------------------------------

Problem Multipathing - Illumination problems / Shadow zones - Common-angle gathers
History of Data This synthetic dataset created by Elf-IFP-CGG is inspired from real data recorded in the North Sea (block L7d). To generate the data, the source spacing was 50m, receiver spacing 25m, and the offsets cover the range 190-3340m. The modeling used is unknown.
Preprocessing Synthetic data
Proprietary Considerations For SEP private use only. Publishing authorized.

 

velmodel
Figure 1 Elf synthetic velocity model

 

shot
Figure 2 Common-shot gather generated from the synthetic velocity model shown previously