sconstruct

国外免费地震资料处理软件包

from rsfproj import *

Fetch(['midpts.hh','beifit.HH'],'midpts')

Flow('midpts','midpts.hh','dd form=native | mutter half=n v0=1.4')
Flow('beifit','beifit.HH','dd form=native')

Flow('nmo','midpts','nmostretch v0=2 half=n mute=12 maxstr=0.5')
Flow('ndmo','nmo','transp plane=23 | dmo velhalf=1 half=n | transp plane=23')
Flow('dmo','ndmo','nmostretch v0=2 half=n inv=y mute=12 maxstr=0.5')

def vscan(title):
    return '''
    window f3=174 n3=1 | vscan v0=%g nv=100 dv=%g half=n slowness=y |
    grey title="%s"
    ''' % (1/2.8,(1/1.7-1/2.8)/99,title)

Plot('nmoscan','midpts',vscan('Slowness scan'))
Plot('dmoscan','dmo',vscan('Slowness scan after DMO'))
Result('velscan','nmoscan dmoscan','SideBySideAniso')

vel = {
    'slower': 1.7,
    'medium': 1.9,
    'faster': 2.2
    }

for input in ('midpts','dmo'):
    subset = input+'_subset'
    Flow(subset,input,'window min1=0.8 max1=2.4')
    for case in vel.keys(): 
        stack = input + case
        Flow(stack,subset,'nmostretch v0=%g half=n | stack' % vel[case])
        Plot(stack,'grey title="Stack at %s velocity" ' % case)

Result('cvstacks','midptsfaster midptsslower','OverUnderAniso')
Result('cvdmostks','dmofaster dmomedium dmoslower','OverUnderAniso')

Flow('wgstack','dmo beifit',
     'nmo velocity=${SOURCES[1]} slowness=y half=n | stack')
Result('wgdmostk','wgstack','grey title="DMO Stack" ')

Flow('wgdmomig','wgstack beifit',
     'kirchnew velocity=${SOURCES[1]} | agc')
Result('wgdmomig','grey title="Migrated DMO Stack" ')

End()