NO20031631L - Fremgangsmate for a simulere lokale prestakk dybde-migrerte seismiske bilder - Google Patents

Fremgangsmate for a simulere lokale prestakk dybde-migrerte seismiske bilder

Info

Publication number
NO20031631L
NO20031631L NO20031631A NO20031631A NO20031631L NO 20031631 L NO20031631 L NO 20031631L NO 20031631 A NO20031631 A NO 20031631A NO 20031631 A NO20031631 A NO 20031631A NO 20031631 L NO20031631 L NO 20031631L
Authority
NO
Norway
Prior art keywords
surveys
models
diffraction
prestack
green
Prior art date
Application number
NO20031631A
Other languages
English (en)
Other versions
NO20031631D0 (no
NO322089B1 (no
Inventor
Isabelle Lecomte
Original Assignee
Norsar V Daglig Leder
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norsar V Daglig Leder filed Critical Norsar V Daglig Leder
Priority to NO20031631A priority Critical patent/NO322089B1/no
Publication of NO20031631D0 publication Critical patent/NO20031631D0/no
Priority to US10/414,972 priority patent/US7376539B2/en
Priority to PCT/NO2004/000103 priority patent/WO2004090575A1/en
Priority to CA2521919A priority patent/CA2521919C/en
Priority to EP04726039.3A priority patent/EP1611461B1/en
Publication of NO20031631L publication Critical patent/NO20031631L/no
Publication of NO322089B1 publication Critical patent/NO322089B1/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/284Application of the shear wave component and/or several components of the seismic signal
    • G01V1/286Mode conversion
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/282Application of seismic models, synthetic seismograms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00Details of seismic processing or analysis
    • G01V2210/50Corrections or adjustments related to wave propagation
    • G01V2210/51Migration
    • G01V2210/512Pre-stack
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00Details of seismic processing or analysis
    • G01V2210/60Analysis
    • G01V2210/61Analysis by combining or comparing a seismic data set with other data
    • G01V2210/614Synthetically generated data

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Fremgangsmåte for simulering av lokale prestack dypmigrerte bilder fra targetmodeller, uten bruk av verken reelle eller syntetiske data. Input er en bakgmnnsmodell og noen surveys, med mulighet til å definere innsamlingsfiater for å beskrive hvilken som helst innsamlingsgeometri for potensielle surveys. I tillegg er det gitt detaljerte targetmodeller, generert fra forskjellig type input, som parametergrid, tolkede tid- eller dyphorisonter med attributter, reservoarmodeller, og andre modeller.I den mest effektive anvendelse av oppfinnelsen, velger brukeren et punkt i bakgrunnsmodellen som fungerer som en node for beregning av Green's-funksjoner mellom surveys/innsamlingsfiater og dette punktet. Green's-funksjoner kan beregnes på mange måter (klassisk strålemetode, bølgefront-konstruksjon og Eikonal-metoder er mulige metoder), hvor den obligatoriske informasjon er slowness-vektorer for å danne en summeringsvektor som kalles diffraksjonsbølgetall. I henhold til valg av surveys ekstraheres diffraksjonsbølgetall med forskjellig sub-seleksjon og sortering, som brukes til å generere filtere i diffraksjonsbølgetallsdomene. Amplituder, pulser, diffraksjonssmønstere, Fresnelsone-effekter og andre effekter kan inkluderes i filterene. Disse blir så anvendt på hver target-modell for å gi et simulert prestack lokalt bilde i dyp etter transformasjon, feks. Tast Fourier Transform',. fra bølgetallsdomene til romlig domene.For å oppnå bedre nøyaktighet kan lokale bilder for nabo-Green's funksjonsnoder settes sammen for å danne en klassisk prestack dypmigrert seksjon. En variant av foreliggende oppfinnelse er å simulere seismiske traser i tidsdomene. Den innerste kjernen i oppfinnelsen, med anvendelse av diffraksjonsbølgetall for å bygge filtere som anvendes på targetmodeller, kan anvendes på andre områder, som Xjrround Penetrating Radar' og alternativt innen akustisk og medisinsk avbildning.
NO20031631A 2003-04-09 2003-04-09 Fremgangsmate for simulering av lokale prestakk dypmigrerte seismiske bilder NO322089B1 (no)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO20031631A NO322089B1 (no) 2003-04-09 2003-04-09 Fremgangsmate for simulering av lokale prestakk dypmigrerte seismiske bilder
US10/414,972 US7376539B2 (en) 2003-04-09 2003-04-16 Method for simulating local prestack depth migrated seismic images
PCT/NO2004/000103 WO2004090575A1 (en) 2003-04-09 2004-04-06 Method for simulating local prestack depth migrated seismic images
CA2521919A CA2521919C (en) 2003-04-09 2004-04-06 Method for simulating local prestack depth migrated seismic images
EP04726039.3A EP1611461B1 (en) 2003-04-09 2004-04-06 Method for simulating local prestack depth migrated seismic images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20031631A NO322089B1 (no) 2003-04-09 2003-04-09 Fremgangsmate for simulering av lokale prestakk dypmigrerte seismiske bilder

Publications (3)

Publication Number Publication Date
NO20031631D0 NO20031631D0 (no) 2003-04-09
NO20031631L true NO20031631L (no) 2004-10-11
NO322089B1 NO322089B1 (no) 2006-08-14

Family

ID=19914660

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20031631A NO322089B1 (no) 2003-04-09 2003-04-09 Fremgangsmate for simulering av lokale prestakk dypmigrerte seismiske bilder

Country Status (5)

Country Link
US (1) US7376539B2 (no)
EP (1) EP1611461B1 (no)
CA (1) CA2521919C (no)
NO (1) NO322089B1 (no)
WO (1) WO2004090575A1 (no)

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US20050088913A1 (en) 2005-04-28
EP1611461B1 (en) 2013-05-29
EP1611461A1 (en) 2006-01-04
NO20031631D0 (no) 2003-04-09
WO2004090575A1 (en) 2004-10-21
WO2004090575A8 (en) 2004-12-23
NO322089B1 (no) 2006-08-14
US7376539B2 (en) 2008-05-20
CA2521919C (en) 2013-09-10
CA2521919A1 (en) 2004-10-21

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