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- European Association of Geoscientists & Engineers [2] http://purl.org/dc/terms/isPartOf http://instance.metastore.ingenta.com/content/eage
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An Introduction to: Velocity Model Building
By Ian F. JonesLanguage: EnglishPublication Date: January 2010More LessThis book sets out to give the reader a non-mathematical understanding of the basic principles of migration and of building a velocity model of the earth’s subsurface. The intended readership includes anyone who has to work with, or to understand, how contemporary seismic images are created: what are the underlying principles and pitfalls? How is a velocity model typically built and what are the consequences of not getting it right?
Concepts such as uncertainty and non-uniqueness are discussed as are the ways in which these topics translate to risk-reduction and reliability in the final image. The different ways of representing a velocity model are reviewed as are the techniques used for picking velocity and anisotropy related information. A review of the principles of tomography is presented, to familiarize the reader with the techniques that underpin all contemporary velocity model update. Also, the physics behind anisotropy and its consequences for obtaining images in ?true? geological depth are discussed.
An historical overview of velocity model building techniques over the past 30 years is presented to give the reader a feel for how the black art of model building has evolved in tandem with the increase in computer power and the emergence of powerful interactive graphics, covering the evolution from a purely linear compartmentalized industrial process towards a fully interactive multidisciplinary approach to iteratively building a reliable subsurface velocity model.
The book concludes with a look at emerging and future trends: the promise of velocity-independent imaging and the potential of full waveform inversion.
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Integrated Geophysical Models
Language: EnglishPublication Date: January 2014More LessThe growing interest for electromagnetic and gravity methods, together with the availability of high quality seismic data, justifies the development of efficient methodologies for combining heterogeneous geophysical information into multi-parametric models. This book discusses different approaches for building integrated geophysical models using seismic, electromagnetic and gravity data.
The book will focus mainly on land and offshore geophysical data acquired at the surface. However, also borehole data will be considered as a fundamental support for geophysical integration. Integrated acquisition techniques will be included in the discussion, but the focus will be mainly on integrated model building.
Target audience:
a) Exploration geophysicists and geologists
b) Reservoir geophysicists, petrophysicists, geologists, engineers
c) Exploration and reservoir managers
d) Academics dealing with seismic and/or non-seismic methods
e) Students and researchers in geology and geophysics
Integrated geophysics is one of the most important problems in geosciences. In fact it has received considerable attention in the technical literature since about 1960. However it is difficult to find books dealing with a comprehensive discussion about quantitative integration of the most recent seismic and non-seismic methods applied in the O&G industry. Moreover many techniques discussed in the book here proposed are unedited or only partially discussed in few specific articles.
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