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Optimizing 3D Refraction And Reflection Survey DesignNormal access

Authors: Jie Zhang and Eugene Lavely
Event name: 11th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems
Session: New Technologies: Advancements In Interpretation Imaging, And Hardware
Publication date: 22 March 1998
Organisations: EEGS
Language: English
Info: Extended abstract, PDF ( 497.58Kb )

Summary:
A useful approach to optimal seismic survey design is to simulate the seismic response for a suite
of a priori subsurface models and shot-receiver templates. We present a method for estimating an
effective source-receiver distribution for resolving an assumed 3D structure. To design the receiver
distribution, we calculate continuous traveltime slices at the surface from a given source template
and plot the RMS curvatures of the wavefronts. The spatial density of the receiver coverage should
be in proportion to the locally varying magnitude of the RMS curvature. Similarly, to determine
the optimal source distribution, we sum the RMS curvatures of the wavefront traveltimes due to
each source in the entire survey area. In the same way, the magnitude of the curvatures suggest
the most important areas for source locations.

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