Výsledky vyhledávání - "Roy E. White"

Wavelet estimation by matching well-log, VSP, and surface-seismic data

Autor: Hong-Da Ma, Roy E. White, Tianyue Hu

Publikováno v: Applied Geophysics. 7:384-391

In this paper, we present a method of wavelet estimation by matching well-log, VSP, and surface-seismic data. It’s based on a statistical model in which both input and output are contaminated with additive random noise. A coherency matching techniq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f16bbcfa43cdbe8f85b7553bb855077
https://doi.org/10.1007/s11770-010-0264-y

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The anatomy of AVO crossplots

Autor: Rob Simm, Roy E. White, Richard Uden

Publikováno v: The Leading Edge. 19:150-155

AVO crossplots are a simple and elegant way of representing AVO data. Offset variations in amplitude for reflecting interfaces are represented as single points on a crossplot of intercept and gradient. The advantage of this type of plot is that a gre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a2dd607c9b530c5f4b886d5f89966fe
https://doi.org/10.1190/1.1438557

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A physical model for shear-wave velocity prediction1

Autor: Roy E. White, Shiyu Xu

Publikováno v: Geophysical Prospecting. 44:687-717

The clay-sand mixture model of Xu and White is shown to simulate observed relationships between S-wave velocity (or transit time), porosity and clay content. In general, neither S-wave velocity nor S-wave transit time is a linear function of porosity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45b7067ee21f21bd05d32616cbbf8711
https://doi.org/10.1111/j.1365-2478.1996.tb00170.x

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A new velocity model for clay‐sand mixtures 1

Autor: Shiyu Xu, Roy E. White

Publikováno v: Geophysical Prospecting. 43:91-118

None of the standard porosity-velocity models (e.g. the time-average equation, Raymer's equations) is satisfactory for interpreting well-logging data over a broad depth range. Clays in the section are the usual source of the difficulty through the bi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::052f1ffd25447abf697c06be7a80c3d6
https://doi.org/10.1111/j.1365-2478.1995.tb00126.x

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Investigation of Key Controls on Estimating Fracture Orientations from AVOA Data

Autor: Enru Liu, Mark J. Harrison, Roy E. White

Publikováno v: 70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008.

We test how well fracture orientations can be estimated from fitting amplitude variations with offset and azimuth (AVOA) under varying signal-to-noise (S/N) ratios. We perform these tests for the range of AVO classes, with different azimuth sampling.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c228073a6f7195a7f19e31e2f4e087ce
https://doi.org/10.3997/2214-4609.20147789

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Coherence methods in mapping AVO anomalies and predicting P-wave and S-wave impedances

Autor: A.S. Barnola, Roy E. White

Filters for migrated offset substacks are designed by partial coherence analysis to predict ‘normal’ amplitude variation with offset (AVO) in an anomaly free area. The same prediction filters generate localized prediction errors when applied in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d472fe6204df0e01c865ea2c6a76f462
https://eprints.bbk.ac.uk/id/eprint/352/1/Binder1.pdf

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Multiple Porosity Differential Effective Medium Models – Improvements and Approximations

Autor: Robert W. Zimmerman, Robert H. Seymour, Roy E. White

Publikováno v: 65th EAGE Conference & Exhibition.

E-18 MULTIPLE POROSITY DIFFERENTIAL EFFECTIVE MEDIUM MODELS – IMPROVEMENTS AND APPROXIMATIONS. Summary 1 The Xu-White model (Xu and White 1995) is a widely used Differential Effective Medium (DEM) petrophysical model based on the scattering theory

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::834f55eb7718c734d94123dab0fb85d8
https://doi.org/10.3997/2214-4609-pdb.6.e18

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