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Author: Jack Dvorkin
Publisher: Cambridge University Press
ISBN: 0521899192
Category : Nature
Languages : en
Pages : 351
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Book Description
An accessible guide to using the rock physics-based forward modeling approach for seismic subsurface mapping, for researchers and petroleum geologists.
Author: Jack Dvorkin
Publisher: Cambridge University Press
ISBN: 0521899192
Category : Nature
Languages : en
Pages : 351
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Book Description
An accessible guide to using the rock physics-based forward modeling approach for seismic subsurface mapping, for researchers and petroleum geologists.
Author: Jack Dvorkin
Publisher: Cambridge University Press
ISBN: 1107782732
Category : Science
Languages : en
Pages : 351
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Book Description
This book provides an accessible guide to using the rock physics-based forward modeling approach for mapping the subsurface, systematically linking rock properties to seismic amplitude. Providing practical workflows, the book shows how to methodically vary lithology, porosity, rock type, and pore fluids and reservoir geometry, calculate the corresponding elastic properties, and then generate synthetic seismic traces. These synthetic traces can then be compared to actual seismic traces from the field: a similar actual seismic response implies similar rock properties in the subsurface. The book catalogs various cases, including clastic sediments, carbonates, and time-lapse seismic monitoring, and discusses the effect of attenuation on seismic reflections. It shows how to build earth models (pseudo-wells) using deterministic and statistical approaches, and includes case studies based on real well data. A vital guide for researchers and petroleum geologists, in industry and academia, providing sample catalogs of synthetic seismic reflections from a variety of realistic reservoir models.
Author: Michael Burianyk
Publisher: SEG Books
ISBN: 1560803827
Category : Science
Languages : en
Pages : 194
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Book Description
Elementary, conceptual, and easy to read, this book describes the methods and techniques used to estimate rock properties from seismic data, based on a sound understanding of the elastic properties of materials and rocks and how the amplitudes of seismic reflections change with those properties. By examining the recorded seismic amplitudes in some detail, we can deduce properties beyond the basic geological structure of the subsurface. We can, using AVO and other amplitude techniques, characterize rocks and the reservoirs inside them with some degree of qualitative, and even quantitative, detail. Mathematics is not ignored, but is kept to a minimum. Intended for geophysicists, seismic acquisition specialists, processors, and interpreters, even those with little previous exposure to ‘quantitative interpretation’, ‘interpretive processing’ or ‘advanced seismic analysis’, this book also would be appropriate for geologists, engineers, and technicians who are familiar with the concepts but need a methodical review as well as managers and businesspeople who would like to obtain an understanding of these concepts.
Author: Gary Mavko
Publisher: Cambridge University Press
ISBN: 0521861365
Category : Nature
Languages : en
Pages : 525
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Book Description
A significantly expanded new edition of this practical guide to rock physics and geophysical interpretation for reservoir geophysicists and engineers.
Author: Karenth Dworsky
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 121
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Book Description
Author: Gary Mavko
Publisher: Cambridge University Press
ISBN: 1108420265
Category : Business & Economics
Languages : en
Pages : 741
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Book Description
Brings together widely scattered theoretical and laboratory rock physics relations critical for modelling and interpretation of geophysical data.
Author: Per Avseth
Publisher: Cambridge University Press
ISBN: 1107320275
Category : Science
Languages : en
Pages : 524
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Book Description
Quantitative Seismic Interpretation demonstrates how rock physics can be applied to predict reservoir parameters, such as lithologies and pore fluids, from seismically derived attributes. The authors provide an integrated methodology and practical tools for quantitative interpretation, uncertainty assessment, and characterization of subsurface reservoirs using well-log and seismic data. They illustrate the advantages of these new methodologies, while providing advice about limitations of the methods and traditional pitfalls. This book is aimed at graduate students, academics and industry professionals working in the areas of petroleum geoscience and exploration seismology. It will also interest environmental geophysicists seeking a quantitative subsurface characterization from shallow seismic data. The book includes problem sets and a case-study, for which seismic and well-log data, and MATLAB® codes are provided on a website (http://www.cambridge.org/9780521151351). These resources will allow readers to gain a hands-on understanding of the methodologies.
Author: Gary Mavko
Publisher:
ISBN: 9781601197610
Category : Geophysics
Languages : en
Pages : 339
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Book Description
Author: Sharif Munjur Morshed
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The Marcellus Shale is an important resource play prevalent in several states in the eastern United States. The productive zone of the Marcellus Shale has variations in rock properties such as clay content, kerogen content and pore aspect ratio, and these variations may strongly effect elastic anisotropy. The objective of this study is to characterize surface seismic sensitivity for variations in anisotropic parameters relating to kerogen content and aspect ratio of kerogen saturated pores. The recognized sensitivity may aid to characterize these reservoir from surface seismic observations for exploration and production of hydrocarbon. In this study, I performed VTI anisotropic modeling based on geophysical wireline log data from Harrison County, WV. The wireline log data includes spectral gamma, density, resistivity, neutron porosity, monopole and dipole sonic logs. Borehole log data were analyzed to characterize the Marcellus Shale interval, and quantify petrophysical properties such as clay content, kerogen content and porosity. A rock physics model was employed to build link between petrophysical properties and elastic constants. The rock physics model utilized differential effective medium (DEM) theory, bounds and mixing laws and fluid substitution equations in a model scheme to compute elastic constants for known variations in matrix composition, kerogen content and pore shape distribution. The seismic simulations were conducted applying a vertical impulse source and three component receivers. The anisotropic effect to angular amplitude variations for PP, PS and SS reflections were found to be dominantly controlled by the Thomsen [epsilon] parameter, characterizing seismic velocity variations with propagation direction. These anisotropic effect to PP data can be seen at large offset (>15° incidence angle). The most sensitive portion of PS reflections was observed at mid offset (15°-30°). I also analyzed seismic sensitivity for variations in kerogen content and aspect ratio of structural kerogen. Elastic constants were computed for 5%, 10%, 20% and 30% kerogen content from rock physics model and provided to the seismic model. For both kerogen content and aspect ratio model, PP amplitudes varies significantly at zero to near offset while PS amplitude varied at mid offsets (12 to 30 degree angle of incidences).
Author: Peter Hubral
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 222
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Book Description
The dominant themes of this book are that stacking velocity and migration velocity need not be the same; that stacking velocity is not identical to root-mean-sqare velocity and that where geologic structure is complex, the venerable Dix equation necessary, yields unacceptable values of computed interval velocity.
