gabriel@sep.stanford.edu

## ABSTRACT
Using all available subsurface information in the design
of a 3-D seismic survey, we can better adjust the acquisition effort
to the demands of illumination of the target horizon. I present a method
that poses the choice of the acquisition parameters as an integer optimization
problem. Rays are shot from grid points on the target reflector at
uniform opening and azimuth angles and their emergence positions
at the surface are recorded. The optimization (an exhaustive search in this
example) minimizes the distance
between the ray emergence coordinates and the source and receiver
coordinates of candidate geometries subject to appropriate geophysical
and logistics constraints. I illustrate the method with a 3-D subsurface
model that I created featuring a target reflector whose depth changes
significantly across the survey area. I show that for this model the
standard approach would lead to a design requiring 200 shots/km |

- Introduction
- Subsurface Model
- Standard 3-D Survey Design
- The problem with the Standard Approach
- The Proposed Approach
- Geometry with the Proposed Methodology
- Discussion
- Conclusion and Future Work
- Acknowledgments
- STANDARD GEOMETRY
- REFERENCES
- About this document ...

7/8/2003