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Keywords: velocity model
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Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-085
... Upstream Oil & Gas wave velocity excavation boundary 13th international congress confinement nonlinear velocity model wave propagation Montreal flac specfem2d numerical simulation excavation Reservoir Characterization nonuniform velocity model rock mechanics isrm13 velocity...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-360
... important indications on the presence of weakness surfaces and on the possible evolution of a monitored area. Respect to the location of seismic events, the computa tion of the hypocenter of microseismic events requires an accurate knowledge of the velocity model, due to the different scale of the problem...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-251
... recorded seismograms. Data were used to test and calibrate waveform polarization routines as well as numerical multilayered velocity models. Finally, automatic 3D localization of low-magnitude microseismic events (M < 0) based on a small number of stations was thus improved. 1 INTRODUCTION...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-244
... position versus image position.The sign and amount of dip can guide an automatic update procedure for the velocity model. The model of compressional or shear velocities ahead is a petrophysical asset in itself but it is also the prerequisite for reflection imaging thatmaps impedance contrasts. Combining...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-211
... ABSTRACT: A generalized, adaptively damped inversion technique with partitioned matrices was applied to determine the locations of mine tremors as well as the parameters of an assumed velocity model. This method is applied to two datasets of arrival times in order to determine the P-wave...

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