Moveout approximations for P- and SV-waves in dip-constrained transversely isotropic media

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F13%3A00396859" target="_blank" >RIV/67985530:_____/13:00396859 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1190/GEO2013-0083.1" target="_blank" >http://dx.doi.org/10.1190/GEO2013-0083.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1190/GEO2013-0083.1" target="_blank" >10.1190/GEO2013-0083.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Moveout approximations for P- and SV-waves in dip-constrained transversely isotropic media

Popis výsledku v původním jazyce

We generalize the P- and SV-wave moveout formulas obtained for transversely isotropic media with vertical axes of symmetry (VTI), based on the weak-anisotropy approximation. We generalize them for 3D dip-constrained transversely isotropic (DTI) media. ADTI medium is a transversely isotropic medium whose axis of symmetry is perpendicular to a dipping reflector. The formulas are derived in the plane defined by the source-receiver line and the normal to the reflector. In this configuration, they can be easily obtained from the corresponding VTI formulas. It is only necessary to replace the expression for the normalized offset by the expression containing the apparent dip angle. The final results apply to general 3D situations, in which the plane reflector may have arbitrary orientation, and the source and the receiver may be situated arbitrarily in the DTI medium. The accuracy of the proposed formulas is tested on models with varying dip of the reflector, and for several orientations of

Název v anglickém jazyce

Moveout approximations for P- and SV-waves in dip-constrained transversely isotropic media

Popis výsledku anglicky

We generalize the P- and SV-wave moveout formulas obtained for transversely isotropic media with vertical axes of symmetry (VTI), based on the weak-anisotropy approximation. We generalize them for 3D dip-constrained transversely isotropic (DTI) media. ADTI medium is a transversely isotropic medium whose axis of symmetry is perpendicular to a dipping reflector. The formulas are derived in the plane defined by the source-receiver line and the normal to the reflector. In this configuration, they can be easily obtained from the corresponding VTI formulas. It is only necessary to replace the expression for the normalized offset by the expression containing the apparent dip angle. The final results apply to general 3D situations, in which the plane reflector may have arbitrary orientation, and the source and the receiver may be situated arbitrarily in the DTI medium. The accuracy of the proposed formulas is tested on models with varying dip of the reflector, and for several orientations of

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP210%2F11%2F0117" target="_blank" >GAP210/11/0117: Šíření seismických vln ve složitých prostředích - perturbační přístupy II</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysics

ISSN

0016-8033

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

"C53"-"C59"

Kód UT WoS článku

000330223800006

EID výsledku v databázi Scopus

—