... implementation and effectiveness of performance. However, the main challenge of this method is the heavy calculation in parameter estimation. To overcome this limitation, we introduce a kinematic wavefield attributes based prestack data interpolation and regularization method. This method uses gradient structure...

...:40 PM Location: 221D Presentation Type: Oral seismic data upstream oil & gas prestack data estimation grid neural network dataset nonlinear calculation local wavefront deep neural network prestack seismic data data enhancement wavefront seg international exposition machine...

... associated to volumetric AVA characterization can be tedious, and some automation could provide relevant help. The use of unsupervised classification techniques on prestack data, combined with synthetic AVA responses generated through fluid substitution and wedge modeling scenarios provide a new method...

... reservoir characterization awmwni information upstream oil & gas gamma angular weight constraint spectrum minimum weighted norm interpolation mwni prestack data geophysics equation negut interpolation xi-shuo wang weight gamma recovery divestco inc frequency dimension...

... from the Gabor wavelet representation of prestack data. Then, combining the feature with pattern recognition techniques, seismic facies analysis can be achieved through unsupervised or supervised learning. We tested the effectiveness of our method with application to the wide-azimuth data form LZB...

... traveltime formula, by which any finite offset section can be obtained, is applied to compute partially stacked CRS supergathers, which have improved signal-to-noise ratio compared with the original data and are regularized by filling the gaps in cases of missing traces. These improved prestack data can...

... with high signal-to-noise ratio and better continuity of reflection events, especially dipping structures. The CRS operator depends on three kinematic attributes determined from prestack data by automatic optimization procedures. These attributes have several applications: velocity models, determination...

.... In this case study, a new strategy is proposed using Common-Reflection-Surface (CRS) partial stacking for both, the merging and the regularisation of the prestack data from two 3D marine surveys. The acquisition already provided some irregularities in the CMP and offset coverage of both surveys, which...

... depth migration reflection resolution regularisation seg seg denver 2010 reservoir characterization geometry-preserving cr gather upstream oil & gas reverse time migration prestack data enhanced resolution migration presdm geometry shot geometry noise level algorithm...

... correction are applied to the original prestack data without the need of any elevation statics. Finally, a redatuming procedure relates the stacked zero-offset section, the kinematic wavefield attribute sections, and the quality control sections to a chosen planar measurement level. reservoir...

.... rickett procedure stack quality coordinate system imaged data upstream oil & gas misalignment marfurt correction estimation interpolation reservoir characterization resolution application registration moveout migration bin prestack data seismic image dataset Fine-tuning your...

... ABSTRACT In this paper a new sophisticated design for a processing sequence to deal with prestack data recorded with the vertical seismic profile (VSP) acquisition geometry will be introduced. The approach is based on the concepts of the common-reflection-surface (CRS) stack theory...

... intelligence background prestack data upstream oil & gas Phase-independent product indicators for AVO reconnaissance Herbert W. Swan, ConocoPhillips, Inc. Summary In frontier areas of exploration far removed from well control, the phase of seismic data is often in question. Nevertheless, it is still...

..., the commonly used hyperbolic approximation reads (see, e. g., Schleicher et al., 1993): fresnel zone upstream oil & gas reservoir characterization true-amplitude crsbased kirchhoff time migration schleicher stationary point minimum aperture time migration kirchhoff migration prestack data...

... ABSTRACT Azimuth moveout (AMO) is a partial migration operator that rotates the azimuth and modifies the offset of 3D prestack data. Being a wave-equation based re-gridding algorithm, AMO carries the correct kinematic, phase and amplitude transformation, and handles dipping geological strata...

... the seismic recordings (such as timing of events or trace attributes). Velocity analysis and tomography, for example, require the picking of prestack reflection events. The automatic picking method presented here is applied to migrated, prestack data for tomographic velocity model updating. The migrated...

... on the solution. wavelet velocity function polarity upstream oil & gas source wavelet nonlinear inversion wavelet estimation reflectivity reservoir characterization synthetic test information resolution prestack seismic data intercept algorithm prestack data inversion ava parameter...

... operator upstream oil & gas kirchhoff depth migration depth migration reflector geophysics imaging prestack data ray migration kirchhoff time migration prestack depth migration velocity model psdm result kirchhoff migration depth domain amplitude Optimal anti-aliasing for ray-based...

... depression or directivity-involved imaging. 2D SEGEAGE salt model prestack data are tested. The obtained results show the improvement of image quality for subsalt structures, especially the steep faults, by selected sources and controlled illuminations. This demonstrates the great potential...

... exploration company velocity field data mining prestack migration resolution prestack time velocity analysis exposition upstream oil & gas prestack data amplitude response residual alignment stratigraphic resolution 3D prestack data mining to meet emerging challenges Joseph M. Reilly...