Nikolaos Bernitsas

Efficient Vz Noise Suppression by Seismic Polarization Analysis of 6C Seabed Data

Alexander Kritski, Harald Westerdahl, Å.S. Pedersen, Mark Christopher Thompson et autres

Summary We acquired data from a North Sea seabed seismic test measured by a 6-degree-of-freedom (6-DOF) sensor that provides three translational measurements (acceleration) along three axes and three rotational measurements of the angular motion of a particle about the axis. Portions of …

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Towards a next generation Ocean Bottom Node: Incorporating a 6C motion sensor

Å.S. Pedersen, Alexander Kritski, Harald Westerdahl, M. Thompson et autres

Summary In this presentation a new single station rotational seismic sensor is introduced. The new sensor enables simultaneous rotational and translational sensing in three orthogonal axes, representing 6 component (or 6C) measurements. Data examples and early results from an offshore field trial …

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Anisotropic ambiguities in TI media

I.F. Jones, M.L. Bridson, Nikolaos Bernitsas

Introduction In recent years we have seen processing and imaging algorithms re-written to handle anisotropic effects. The most common type of anisotropy that one deals with in seismic data is polar anisotropy (transverse isotropy). Media with vertical (VTI), tilted (TTI), and horizontal …

Antialiasing Operator Dip in 3D Prestack Kirchoff Time Migration - an Exact Solution

Jianmeng Sun, Nikolaos Bernitsas

The approximation for the local migration operator dip used for determining the aliased frequencies, Lumley et al. (1994), breaks down for slow velocities and non-zero offsets. As a result, large offsets are over-filtered making AVO analysis unreliable.

3D Velocity Analysis and Prestack Kirchoff Time Migration in Transversely Isotropic Media

Dennis S. Corrigan, Jianye Sun, Nikolaos Bernitsas

Target illumination modelling for 3D seismic acquisition and processing

Nikolaos Bernitsas, Charles J. Sicking

Conventional 3D seismic acquisition designs are cost driven and are based on simple velocity model assumptions. These designs optimize the fold and offset distribution in the CMP bins without considering the illumination of the target horizon. When the earth model is complex …

Curvature effect of a reflecting surface for arbitrary offset and azimuth

Nikolaos Bernitsas

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1990Curvature effect of a reflecting surface for arbitrary offset and azimuthAuthors: Nikolaos BernitsasNikolaos BernitsasUniversity of Texas at Austinhttps://doi.org/10.1190/1.1889905 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1889905FiguresReferencesRelatedDetailsCited ByReferences2 October 201411. Reservoir Geophysics21 March 2001 …

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Finite difference modeling of fault surface reflections

Nikolaos Bernitsas, Milo M. Backus

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1990Finite difference modeling of fault surface reflectionsAuthors: Nikolaos BernitsasMilo M. BackusNikolaos BernitsasUniversity of Texas at Austin and Milo M. BackusUniversity of Texas at Austinhttps://doi.org/10.1190/1.1890410 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1890410FiguresReferencesRelatedDetails SEG …

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