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A Basical Study on Two-point …
http://www.ees.nmt.edu/outside/courses/GEOP523/Docs/yang.pdf
(PPT) Seismic_Interpretation.ppt | Kharina Budiman
https://www.academia.edu/29851727/Seismic_Interpretation_ppt
Seismic Data Interpretation and Evaluation for Hydrocarbon Exploration and Production A Practitioner's Guide. By Franck-cedric Nayang. First Steps in Seismic Interpretation. By khaled magdy. Common techniques for quantitative seismic interpretation. By devex seis. Application of 3D Seismic Suvey in subsurface investigation.
PEAT8002 - SEISMOLOGY Lecture 8: Ray tracing in …
http://rses.anu.edu.au/~nick/teachdoc/lecture8.pdf
A number of other velocity functions yield analytic ray tracing solutions, such as the constant gradient of lnv, and the constant gradient of the nth power of slowness 1/vn. Although analytic ray tracing is possible for a few special cases, in general one needs to solve the kinematic ray tracing equation using numerical methods.
Chapter 6: Ray Tracing and Seismic Modeling | Basic …
https://library.seg.org/doi/10.1190/1.9781560803461.ch6
The concept of a ray is very useful. It is a line drawn in space that corresponds to the direction of the flow of radiant energy. Rays are a geometric idealization; they have no width. As such, a ray is a mathematical device rather than a physical entity. In practice, we can produce very narrow beams or pencils (as, for example, a laser beam ...
No Slide Title
http://www.geol.lsu.edu/jlorenzo/ReflectSeismol05/labs/ppt/modleing_raytracing.ppt
Time-depth conversion Ray-tracing SeisWide Ray-tracing mmodpg Emilio Vera, University of Chile, Santiago Display of source-receiver offset seismic data in segy format. Raytracing for velocity layer modeling in laterally homogeneous layered media. Run under unix or linux systems. Requires pgplot plotting libraries and a gnu f77 compiler.
cg18 ray tracing.ppt
https://www.eecis.udel.edu/~yu/Teaching/CISC440_S15/handouts/raytrace2.pdf
Ray Tracing. • Model: Perceived color at point pis an additive combination of local illumination (e.g., Phong), reflection, and refraction effects • Compute reflection, refraction contributions by tracing. respective rays back from pto surfaces they came from and evaluating local illumination at those locations • Apply operationrecursivelyto some maximum depth to get:
Ray Tracing - University of Texas at Austin
https://www.cs.utexas.edu/users/fussell/courses/cs384g-fall2011/lectures/lecture09-Ray_tracing.pdf
Ray-tracing pseudocode, cont’d function traceRay(scene, P, d): (t, N, mtrl) ← scene.intersect (P, d) Q ray (P, d) evaluated at t I = shade(q, N, mtrl, scene) R = reflectDirection(N, -d) I ← I + mtrl.k r * traceRay(scene, Q, R) if ray is entering object then n_i = index_of_air n_t = mtrl.index else n_i = mtrl.index n_t = index_of_air
PEAT8002 - SEISMOLOGY Lecture 16: Seismic …
http://rses.anu.edu.au/~nick/teachdoc/lecture16.pdf
Seismic tomography I Model parameterisation Triangular/tetrahedral meshes are flexible and allow analytic ray tracing when velocity is constant or constant in gradient within a cell. However, like constant velocity blocks, they usually require a fine discretisation, and can also destabilise the data prediction problem.
South Carolina Department of Transportation
https://www.scdot.org/business/GeoTechTngFiles/11%20-%20Seismic%20Refraction.pptx
South Carolina Department of Transportation
This page intentionally left blank - GeoKniga
https://www.geokniga.org/bookfiles/geokniga-breviary-seismic-tomography.pdf
2 Ray theory for seismic waves 11 2.1 The stress tensor 11 2.2 Forces in continuous media 12 2.3 Newton’s law and the elastodynamic equations 13 2.4 The acoustic wave equation 16 2.5 The ray approximation 20 2.6 Ray solutions in layered and spherical systems 22 2.7 Geometrical spreading 25 2.8 Rays in an isotropic, elastic Earth 26
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