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Seismic anisotropy of a building
The Leading Edge, 2006The Robert A. Millikan Library is a reinforced concrete building located on the campus of the California Institute for Technology in Pasadena, USA. The building has been studied by earthquake engineers since it was first instrumented in the late 1960s. Continuous measurements at 200 Hz are made by 19-bit real-time seismometers on each of the 10 floors ...
David Thompson, Roel Snieder
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Geophysics, 2001
Abstract The topic of seismic anisotropy in exploration and exploitation has seen a great deal of progress in the past decade-and-a-half. The principal reason for this is the increased (and increasing) quality of seismic data, of the processing done to it, and of the interpretation expected from it.
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Abstract The topic of seismic anisotropy in exploration and exploitation has seen a great deal of progress in the past decade-and-a-half. The principal reason for this is the increased (and increasing) quality of seismic data, of the processing done to it, and of the interpretation expected from it.
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Geophysical Prospecting, 2005
ABSTRACTShales are a major component of sedimentary basins, and they play a decisive role in fluid flow and seismic‐wave propagation because of their low permeability and anisotropic microstructure. Shale anisotropy needs to be quantified to obtain reliable information on reservoir fluid, lithology and pore pressure from seismic data, and to understand
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ABSTRACTShales are a major component of sedimentary basins, and they play a decisive role in fluid flow and seismic‐wave propagation because of their low permeability and anisotropic microstructure. Shale anisotropy needs to be quantified to obtain reliable information on reservoir fluid, lithology and pore pressure from seismic data, and to understand
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Seismic anisotropy in Trinidad: Processing and interpretation
SEG Technical Program Expanded Abstracts 1997, 1997The imaging improvements are shown for two different lines from Trinidad. The lithology of offshore Trinidad is formed of alternating sequences of sand and shale dominated layers. Despite the presence of sands, accounting for anisotropy in seismic processing results in improved imaging of structural and stratigraphic features.
Tariq Alkhalifah, Dave Rampton
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The Leading Edge, 2002
Measuring P-wave azimuthal anisotropy has been in the recent past an elusive task; therefore, the interpreter ignored this attribute of the seismic data and left the subject to the research and technology group geophysicists. Conversely, the interpreting geophysicist knew that, when measured, the anisotropy could yield important reservoir properties ...
Marty Williams, Edward Jenner
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Measuring P-wave azimuthal anisotropy has been in the recent past an elusive task; therefore, the interpreter ignored this attribute of the seismic data and left the subject to the research and technology group geophysicists. Conversely, the interpreting geophysicist knew that, when measured, the anisotropy could yield important reservoir properties ...
Marty Williams, Edward Jenner
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Seismic anisotropy in overburden
SEG Technical Program Expanded Abstracts 2005, 2005Seismic anisotropy produced by shales and fine shale/sandstone sequences in overburden is analyzed by using laboratory data. qP-wave anisotropy is weak for small propagation angles ( 0 30 about θ ). qSV-wave anisotropy is strong in moderate propagation angles ( 0 0 0 7 about 20 about < < θ ).
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Seismic anisotropy in the upper mantle
Tectonophysics, 1968Abstract From the study of ultramafic rocks it is clear that there is a strong tendency toward olivine orientation in which the b crystallographic axes show a distinct concentration normal to a schistosity or banding. Olivine a and c axes tend to lie in a girdle normal to this b axis concentration. Laboratory measurements of the elasticity of
N.I. Christensen, R.S. Crosson
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The Seismic Anisotropy of the Eastern Anatolia
Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2022The near-surface seismodynamic parameters in the upper crust can be a useful tool for seismic risk and identifying the distribution of seismic anisotropy with tectonic structures. The determination of these parameters is crucial and necessary for determining seismic risk and understanding seismic anisotropy.
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Observations of seismic anisotropy in prestack seismic data
SEG Technical Program Expanded Abstracts 2007, 2007A method for displaying prestack seismic data that highlights azimuthal anisotropy is shown. Using this method to make observations of azimuthal anisotropy in prestack seismic data makes it clear that azimuthal anisotropy is observed in all types of seismic data and that it is widespread from the shallowest to the deepest seismic reflectors. Therefore,
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2007
The main breakthrough in seismology during the last ten years is related to the emergence and development of more and more sophisticated 3-dimensional imaging techniques, usually named seismic tomography, from the local scale up to global scale of the Earth.
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The main breakthrough in seismology during the last ten years is related to the emergence and development of more and more sophisticated 3-dimensional imaging techniques, usually named seismic tomography, from the local scale up to global scale of the Earth.
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