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Showing 1 to 13 of 13 for “"reflection seismic data"”.
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Stress and strain from reflection seismic data
… the paleostress stratigraphy solely based on 3D reflection data, and the initial work for a similar approach for ductile evaporites is presented. For the determination of paleostress, knowledge of the orientation and slip direction of the individual faults in the set is required. Both in field …
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Velocity and Q from reflection seismic data
… encountered in the acquisition of conventional reflection seismology data result in a system of linear equations of the form AX = B, with A the design matrix, X the solution vector, and B the data vector. The system of normal equations is AᵀAX = AᵀB where the least-squares estimate of X = X = …
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Interpretation of reflection seismic data by analysis of cumulative energy spectra
Where reflection seismic data are available, and in the absence of geologic control (deep reflectors, lack of drill hole data), a positive identification of the structure and lithostratigraphy of the reflectors is desirable. In this study, synthetic geologic models are generated to model thin-bed …
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Application of complex trace attributes to reflection seismic data near Charleston, South Carolina
… analysis has been applied to 24-fold VIBROSEIS reflection data acquired on the Atlantic Coastal Plain near Charleston, S. C., to yield an expanded interpretation of a Mesozoic basin concealed beneath Coastal Plain sediments. Complex trace attributes express the seismic trace in terms of a …
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Reflection seismic data acquisition and processing for enhanced interpretation of high resolution objectives
Reflection seismic data were acquired (by CONOCO, Inc.) which targeted known channel interruption of an upper Pennsylvanian coal seam (Herrin #6) in the Illinois basin. The data were reprocessed and interpreted by the Regional Geophysics Laboratory, Virginia Tech. Conventional geophysical …
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Estimation of seismic parameters from multifold reflection seismic data by generalized linear inversion of Zoeppritz equations
… by a plane, horizontal boundary from P-wave reflection amplitude-versus-offset (AVO) data recorded at the surface. The method has for its basis the inversion of the plane wave Zoeppritz. equations by generalized linear inversion (GLI) and bootstrapping. The Zoeppritz equations are converted …
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Structure and regional tectonic setting across the Atlantic Coastal Plain of northeastern Virginia as interpreted from reflection seismic data
… study is a geophysical investigation that uses reflection seismic and potential field data to contribute to the development of a structural model of the North American Atlantic Passive Margin beneath the Atlantic Coastal Plain of northeastern Virginia. Specifically, this study focuses between …
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Correlation of seismic reflection data with seismicity over the Ramapo, New Jersey, fault zone
Reflection seismic data, mylonite reflectivity, gravity data, and earthquake hypocenters have been integrated into a possible explanation for seismicity in the Ramapo fault area. Seven reflection seismic lines were processed using variations in sorting and residual statics. Single VIBROSEIS sweeps …
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Shallow subsurface deformation along the Pen Branch Fault in South Carolina: interpretation from seismic refraction stack sections
… Eocene). An investigation with high resolution reflection seismic data is undertaken along the Pen Branch Fault. Five of the seismic lines are reprocessed to help in determining the upward depth of penetration of this fault. This is done by utilizing refracted arrivals from the multifold …
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Elasto-static and -dynamic Analysis of Subsurface Fracture Phenomena
… to estimate anisotropic fracture parameters from reflection seismic data. The inversion results address several shortcomings associated with conventional techniques, including a relaxed constraint on fracture orientations and the resolution of a 90° azimuthal ambiguity, providing an improved …
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An Integrated Geophysical Study of the Central Appalachians of Western Virginia and Eastern West Virginia
Over 700 km of industry seismic reflection data in the central Appalachians were reprocessed using both conventional and newly developed processing schemes. A new processing sequence, called dip projection, is introduced. The technique projects crooked-line processed CMPs onto a straight line …
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Signatures of present and past melt distribution along fast and intermediate spreading centers
… crust. To explore the above we use geophysical data collected during two expeditions conducted along the Juan de Fuca Ridge (intermediate) and the East Pacific Rise (fast). The major part of the thesis is based on the work conducted on high resolution reflection seismic data that investigate …
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Attributes and their potential to analyze and interpret 3D GPR data
… same time, the analysis of oil and gas related reflection seismic data sets has experienced significant advances. Considering the sensitivity of attribute analysis with respect to data positioning in general, and multi-trace attributes in particular, trace positioning accuracy is of major …