· (1) where T and — Total traveltime, Seismic structural time, — Shot "static" from datum to...

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Transcript of  · (1) where T and — Total traveltime, Seismic structural time, — Shot "static" from datum to...

Page 1:  · (1) where T and — Total traveltime, Seismic structural time, — Shot "static" from datum to surface, Receiver "static" from datum to surface,
Page 2:  · (1) where T and — Total traveltime, Seismic structural time, — Shot "static" from datum to surface, Receiver "static" from datum to surface,
Page 3:  · (1) where T and — Total traveltime, Seismic structural time, — Shot "static" from datum to surface, Receiver "static" from datum to surface,
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The Leading Edge, 1993

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CORREÇÃO ESTÁTICA DE CAMPO (+ RESIDUAL)

The Leading Edge, 1993

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CORREÇÃO ESTÁTICA DE CAMPO

The Leading Edge, 1993

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Presunção: trajetórias (raios) verticais

correta, considerando:

pequenos offsets (relativamente à profundidade do refletor)

pequenas variações topografia

pequenas variações entre superfície topográfica e datum

pequenas variações das velocidades da camada superficial

QUAL O EFEITO NO SISMOGRAMA?

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The Leading Edge, 1993

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frequência dominante = 70 Hz

stack traços 1 e 2

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CORREÇÃO ESTÁTICA DE CAMPO (+ RESIDUAL)

Objetivos:

correta interpretação estrutural

seção de alta resolução

Correções nos tempos de trajetória das

reflexões aplicadas para eliminar os

efeitos das irregularidades topográficas

e das variações de velocidade dos

estratos superficiais.

The Leading Edge, 1993

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The Leading Edge, 1993

CORREÇÃO ESTÁTICA DE CAMPO (de elevação)

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The Leading Edge, 1993

Correção do “datum variável” para “datum horizontal” = após correção

NMO (dados já empilhados)

CORREÇÃO ESTÁTICA DE CAMPO (de elevação)

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CORREÇÃO ESTÁTICA DE CAMPO (de refração)

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CORREÇÃO ESTÁTICA DE CAMPO NA SÍSMICA RASA

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The Leading Edge, 1993

Correção estática residual

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Static corrections – a review (part I, II, III)

Dave Marsden

The Leading Edge, jan, fev, mar 1993

Static corrections – a tutorial

Brian Russell

CSEG Recorder, 1989


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Ray Theoretical Traveltime Inversion of Seismic Data in ...

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Improving global shear wave traveltime tomography using ...rses.anu.edu.au/~brian/PDF-reprints/2000/gji.141.747.pdf · Global shear wave traveltime tomography 749 & Sekine (1998)

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GDA2020 –a modern datum for Australia · 2016-09-09 · GDA2020 specifications 3 • Conventional static datum like GDA94 but with rigorous uncertainty • Just like GDA94, i.e.

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Traveltime article

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SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST AND …rses.anu.edu.au/~nick/papers/nickadv2003.pdf · SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST AND LITHOSPHERE ... Canberra ACT 0200,

SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST AND …rses.anu.edu.au/~nick/papers/nickadv2003.pdf · SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST AND LITHOSPHERE ... Canberra ACT 0200,

3D seismic refraction traveltime tomography at a groundwater ...

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Feasibility of inverting compaction-induced traveltime ...

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Datum Target

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Conditioning bounds for traveltime tomography in layered media

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Inverse scattering, seismic traveltime tomography, and neural networks

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00-09 census commutemode traveltime tenure tract level values only

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Diffraction traveltime approximation for TI media with an … · Diffraction traveltime approximation for TI media with an inhomogeneous background Umair bin Waheed 1, Tariq Alkhalifah

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Traveltime and Longitudinal Dispersion in Illinois …Traveltime and Longitudinal Dispersion in inois Streams By Julia B. Graf Abstract Twenty-seven measurements of traveltime and

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SVD enhanced seismic interferometry for traveltime estimates … · 2015-11-18 · SVD enhanced seismic interferometry for traveltime estimates between microquakes ... EarthResourcesLaboratory-Earth,Atmospheric,andPlanetarySciencesDepartment-MIT

SVD enhanced seismic interferometry for traveltime estimates … · 2015-11-18 · SVD enhanced seismic interferometry for traveltime estimates between microquakes ... EarthResourcesLaboratory-Earth,Atmospheric,andPlanetarySciencesDepartment-MIT

 · TEST PRÉNATAL NON- INVASIF (TPNI ou NIPT) CENTRUM MEDISCHE GENETICA UZ Brussel ... Mola Datum: Datum: Datum: Datum: [2 Suggestief voor trisomie 21

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Station-Specific Traveltime Tables In a 3D earth

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Introduction to the traveltime tomography and prestack ...sandmeier-geo.de/Download/borehole_prestackmigration.pdf · Introduction to the traveltime tomography and prestack ... restrict

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