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View these tutorials, application samples and theoretical publications :


An Evaluation of Methods and Available Software for Seismic Refraction Tomography Analysis (Jacob R. Sheehan et al., JEEG March 2005. Compares Rayfract with GeoTomo LLC GeoCT-II and OYO SeisImager; PDF)

Comparison of reflection seismic with refraction seismic interpretation, for Turbidite imaging (Maria Antonieta Gaya and Teresa Teixido, 2004; PDF)

Land Streamer Aided Geophysical Studies at Saqqara, Egypt (Carlyle R. Miller et al. JEEG December 2005; HTML)

Comparison of pseudo-2D Delta-t-V initial model with 1D gradient initial model, for basement depression model as described by Derecke Palmer (PDF)

Comparison of pseudo-2D Delta-t-V initial model with 1D gradient initial model, for basement depression model as described by Jacob Sheehan (PDF)

2D sections of porosity and water saturation percent from combined resistivity and seismic surveys for hydrogeologic studies (R. Mota and F. Monteiro dos Santos, SEG The Leading Edge June 2006. Simulated Annealing of Res2DInv and Rayfract output; purchase PDF)

The traveltime equation, tau-p mapping, and inversion of common midpoint data (John B. Diebold and Paul L. Stoffa 1981, SEG Geophysics, volume 46, pp. 238-254; purchase Adobe Acrobat)

Tau-p refraction tomography in the Canadian foothills (Sylvestre Charles et al. CSEG 2006; PDF)

Mt. Bulga Revisited (Bob Whiteley and Tak Ming Leung, 2006. Compares Smooth inversion with VIRT interpretation; PDF)

Mt. Bulga Revisited : Graphics (Bob Whiteley and Tak Ming Leung, 2006; PDF)

Rayfract in Marine Surveys (Zivko Terzic, 2006; PDF)

Sinkhole imaging with Smooth 2D inversion compared with conventional Wavefront interpretation (PDF)

The Plus-Minus Method of Interpreting Seismic Refraction Sections (J.G. Hagedoorn 1959, EAGE Geophysical Prospecting, volume 7, pp. 158-182; PDF)

Application of Seismic Refraction Tomography to Karst Cavities (Jacob R. Sheehan et al. 2005, U.S. Geological Survey Scientific Investigations Report 2005-5160; PDF)

Tau-p refraction tomography and statics, compared to well stratigraphy and applied to reflection survey (WesternGeco; PDF)

Comparison of 2D WET tomographic imaging with conventional refraction interpretation (Håkan Mattsson, GeoVista AB; PDF)

seg2_edit; A Program for Editing and Manipulating SEG-2 Files, by K. J. Ellefsen (USGS Open-File Report; PDF)

Smooth 2D inversion compared to conventional Wavefront interpretation of Palmer Mt. Bulga data set (PDF)

Detecting Cavities with Seismic Refraction Tomography: Can it be done? (Jacob Sheehan et al. SAGEEP 2005; PDF)

Smooth inversion compared to conventional Wavefront inversion, of low coverage line (7 shots into 24 receivers; PDF)

Cavity imaging with Rayfract 2.61, correlated with borehole results (PDF)

A ray inversion method for refraction analysis (Glyn M. Jones and D. B. Jovanovich 1985; purchase PDF)

Nonlinear least-squares inversion of traveltime data for a linear velocity-depth relationship (Bruce S. Gibson et al. 1979; purchase PDF)

Examination of the optimum XY value by ray tracing (Tak Ming Leung 1995; purchase Adobe Acrobat)

Controls of traveltime data and problems of the generalized reciprocal method (Tak Ming Leung 2003; purchase PDF)

A brief study of applications of the generalized reciprocal method and of some limitations of the method (Bengt Sjögren 2000; purchase PDF)

Comparison of pseudo 2D Delta-t-V initial model with 1D gradient initial model (PDF)

Thrust Fault Modeling and Imaging with Surfer 8 and Rayfract 2.51 (PDF)

Imaging of dynamic Poisson's ratio with fail-safe "Smooth inversion" as implemented for version 2.51 (PDF)

Improved interpretation of "Dipping" SEG 2003 Dallas model (Jacob Sheehan et al.), with Delta-t-V version 2.47 (PDF)

Evaluation of refraction tomography codes for near-surface applications (Jacob Sheehan et al., Oak Ridge National Laboratory Tennessee, SEG 2003 Dallas abstract; PDF)

Tutorials showing processing of client profiles (PDF)

Imaging of strong velocity anomalies in Northern Chad : 15 shots into 46 receivers (PDF)

Fault detection in the Alsace, with Rayfract and Reflection Seismics (GeoExpert ag)

Combination of Delta-t-V Refraction with Reflection Seismics, Resistivity and Drilling (GeoExpert ag)

Low coverage survey (7 shots into 24 receivers) processed with W_GeoSoft WinSism, Optim LLC SeisOpt@2D and Rayfract. Verification with two drillings (Jacques Jenny 2003; PDF)

Fractured bedrock mapping with Rayfract Tomography and Wavefront methods (9 shots into 24 irregularly spaced receivers; PDF)

Groundwater remeditation study using Rayfract and Resistivity (William E. Doll et al. 2002, Oak Ridge National Laboratory Tennessee; PDF)

Investigation of a landfill with Seismic Refraction, Resistivity and Electromagnetic methods (William E. Doll et al. 2001, Oak Ridge National Laboratory Tennessee; Adobe Acrobat; compares Rayfract with Rimrock Geophysics SIPT-2 software)

Tomographic inversion of a high coverage seismic line (28 shots into 48 receivers) with Rayfract TM (PDF)

Improved Traveltime Tomography without rays (Online abstract; collection of papers by Gerard T. Schuster et al.)

Wavepath Eikonal Traveltime WET tomography : Theory (Gerard T. Schuster and Aksel Quintus-Bosz 1993; purchase PDF)

Seismic traveltime tomography using Fresnel volume approach (Toshiki Watanabe 1999; purchase PDF)

Beyond ray tomography: Wavepaths and Fresnel volumes (Don W. Vasco et al. 1995; purchase PDF)

The Fresnel volume and transmitted waves (Jesper Spetzler and Roel Snieder 2004; purchase PDF)

Model parametrization in seismic tomography : a choice of consequence for the solution quality (E. Kissling et al. ETH Zurich 2001; PDF)

Improving modelling and inversion in refraction seismics with a first-order Eikonal solver (Isabelle Lecomte et al. 2000; PDF)


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