Shornclif-Candadian Land Acqusition

Robert G. Clapp

bob@sep.stanford.edu

ABSTRACT

Dense arrays of receivers.

Raw Data On tape CMP gather /data_/shorncliff_land_3dgeom/wind.H
Velocity Model /data_3d/shorncliff_land_3dgeom/rms.H
Stack /data_3d/shorncliff_land_3dgeom/stack.H
Usage Nizar's thesis
Geometry

-----------------------------------------------------------------
                 ********** shorn_sort.H ************ 
          4 -esize          Synched          data_format-xdr_float 
-----------------------------------------------------------------
n1=1000                  o1=0.000000     d1=0.002000     label1=time 
n2=1440633       o2=1.000000     d2=1.000000     label2=trace_number 
Data: in=/scrka3/bob/shorn_sort.H@ 
    1440633 elements,  5762532000 bytes in data file 
-----------------------------------------------------------------
keynumber=1      keytype=scalar_int      keyname=sx 
keynumber=2      keytype=scalar_int      keyname=sy 
keynumber=3      keytype=scalar_int      keyname=gx 
keynumber=4      keytype=scalar_int      keyname=gy 
keynumber=5      keytype=scalar_int      keyname=cdp 
keynumber=6      keytype=scalar_int      keyname=offset 
keynumber=7      keytype=scalar_int      keyname=sstat 
keynumber=8      keytype=scalar_int      keyname=gstat 
keynumber=9      keytype=scalar_float    keyname=s_x 
keynumber=10     keytype=scalar_float    keyname=g_x 
keynumber=11     keytype=scalar_float    keyname=s_y 
keynumber=12     keytype=scalar_float    keyname=g_y 
keynumber=13     keytype=scalar_float    keyname=cmp_x 
keynumber=14     keytype=scalar_float    keyname=cmp_y 
keynumber=15     keytype=scalar_float    keyname=aoffset 
keynumber=16     keytype=scalar_float    keyname=azimuth 
keynumber=17     keytype=scalar_int      keyname=data_record_number 
n2=1440633       o2=1.000000     d2=1.000000     label2=trace_number 
Headers in=/scrka3/bob/shorn_sort.H@@@ 
   24490761 elements,    97963044 bytes in data file 
-----------------------------------------------------------------
grid axis2       n2=129          o2=1.000000     d2=1.000000     label2=trace_in_bin 
grid axis3       n3=61   o3=0.000000     d3=50.000000    label3=aoffset 
grid axis4       n4=33   o4=-1.600000    d4=0.100000     label4=azimuth 
grid axis5       n5=40   o5=500.000000   d5=75.000000    label5=cmp_x 
grid axis6       n6=40   o6=700.000000   d6=120.000000   label6=cmp_y 
Grid   in=/scrka3/bob/shorn_sort.H@@@@@ 
  415483200 elements,  1661932800 bytes in data file 
-----------------------------------------------------------------
-----------------------------------------------------------------

Problem
History of Data
Preprocessing Nmo, Statics
Proprietary Considerations ????

 

window
Figure 1 Raw Data

 

velocity Figure 2 Velocity model

 

stack
Figure 3 Stacked data

 

fold
Figure 4 Fold

 

azimuth-angle
Figure 5 Azimuth-angle