Go to the list of seismic processes.
Go to SIOSEIS introduction.
EW9914 SIOSEIS "realtime" stack script
run on "heezen" in directory: /ldata/realtime/brute_stack
#! /bin/csh
if( $#argv < 1 ) then
echo "Usage: stack line-number"
exit 1
endif
set LINENO = $1
sioseis << eof
procs segdin prout geom header diskob gather nmo mute diskod stack diskoe filter diskoa agc plot end
segdin
# take all shots
ffilen 99999
# ftr 1 ltr 480 trinc 2 fcset 1 lcset 1
ftr 241 ltr 480 fcset 1 lcset 1
stime 1 secs 5.0
offline yes # eject after the rewind after EOT
iunit 43 end
end
geom
type 2 # increment the shot loaction based on the shot number
fs 1 ls 999999 # all shot have the same parameters (preset)
gxp 480 -196.6 # RESET the closest group only.
ggx -12.5 # Used to extrapolate gxp!
dfls 37.5 dbrps 6.25 smear 6.25
# dfls 37.5 dbrps 12.5 smear 12.5
rpadd 1000 end
end
mute
fno 1 lno 999999
addwb yes xtp 200 -.1 1500 -.1 3000 1 6200 2 end
end
diskoa # Write out disk file
opath LAUBASIN.$LINENO end
end
diskob
# write every 50th shot to a "circular" file
fno 1 lno 999999 noinc 50 rewind 1
opath /ldata/realtime/shots/latest.shot end
end
diskoc
set 3 6 opath /ldata/realtime/cmps/cmps.$LINENO end
end
diskod
fno 1 lno 999999 noinc 50 rewind 1
opath /ldata/realtime/shots/latest.mute end
end
diskoe # Write out disk file
opath stack.$LINENO end
end
prout
fno 0 lno 99999 ftr 479 ltr 479 noinc 10 end
end
header
fno 0 lno 9999999 ftr 1 ltr 9999
r50 r54 / 750. # convert water depth to water time
end
end
gather
# maxtrs 90 maxrps 500 end
maxtrs 50 maxrps 250 end
end
nmo
# real time nmo, replace interpolation by RP to WB depth in Meters.
# If water depth changes by > 500 m, use previous value. Water-depth
# velocity functions derived from ESP5, interpolation by iso-velocity layering
vtrkwb 500 stretc 0.50
fno 1000 lno 1000
vtp 1500 1.333
1557 1.414
1607 1.443
1789 1.492
2346 1.645
2638 1.746
2900 1.846
2971 1.872
3150 1.983
3141 2.102
3264 2.362
4228 3.742
4343 3.892
4898 4.393 end
fno 1500 lno 1500
vtp 1500 2.0
1539 2.081
1574 2.110
1705 2.159
2137 2.312
2379 2.413
2603 2.513
2665 2.539
2827 2.650
2834 2.769
2967 3.029
3939 4.409
4053 4.559
4596 5.060 end
fno 2000 lno 2000
vtp 1500 2.667
1529 2.748
1557 2.777
1659 2.826
2012 2.979
2218 3.080
2414 3.180
2468 3.206
2614 3.317
2629 3.436
2761 3.696
3711 5.076
3823 5.226
4351 5.727 end
fno 2500 lno 2500
vtp 1500 3.333
1524 3.414
1546 3.443
1629 3.492
1928 3.645
2108 3.746
2282 3.846
2330 3.872
2463 3.983
2481 4.102
2608 4.362
3526 5.742
3636 5.892
4146 6.393 end
fno 3000 lno 3000
vtp 1500 4.0
1520 4.080
1538 4.110
1609 4.159
1868 4.312
2028 4.413
2184 4.513
2228 4.539
2350 4.650
2368 4.769
2489 5.029
3373 6.409
3479 6.559
3972 7.060 end
fno 3500 lno 3500
vtp 1500 4.667
1517 4.748
1533 4.777
1595 4.826
1823 4.979
1967 5.080
2108 5.180
2148 5.206
2260 5.317
2279 5.436
2395 5.696
3243 7.076
3346 7.226
3822 7.727 end
fno 4000 lno 4000
vtp 1500 5.333
1515 5.414
1529 5.443
1583 5.492
1788 5.645
1919 5.746
2048 5.846
2085 5.872
2189 5.983
2208 6.102
2317 6.362
3131 7.742
3231 7.892
3692 8.393 end
fno 4500 lno 4500
vtp 1500 6.0
1513 6.081
1526 6.110
1574 6.159
1760 6.312
1879 6.413
1999 6.513
2033 6.539
2130 6.650
2148 6.769
2252 7.029
3034 8.409
3131 8.559
3577 9.060 end
fno 5000 lno 5000
vtp 1500 6.667
1512 6.748
1523 6.777
1567 6.826
1737 6.979
1847 7.080
1958 7.180
1990 7.206
2080 7.317
2098 7.436
2197 7.696
2948 9.076
3042 9.226
3474 9.727 end
end
filter
pass 5 40 ftype 0 dbdrop 48 end
end
agc
winlen .5 center .1 end
end
plot
scalar 1.e-07
tlines 0.5 1 nibs 7224 ann gmtint anninc 30
def 0.01 trpin 80 wiggle 0
stime 2 nsecs 4 vscale 5
opath siopltfil.$LINENO end
end
end
eof
Go to the list of seismic processes.
Go to SIOSEIS introduction.