Gabriel Alvarez

RESEARCH

Currenty, my main research interest is the attenuation of multiples in 3D marine seismic data. In particular, I am researching the attenuation of multiples in the image space, using 3D angle domain common-image-gathers.

Other research interest is the optimization of the design of land 3D seismic surveys from the point of view of subsurface illumination.

As an SEP student, it is no surprise that I have interest in the application of least-squares inversion to tackle a variety of geophysical problems. Not-so-expected may be my interest in non-linear inversion methods, in particular genetic algorithms.

Here are links to my most recent papers. If you read any of them, please let me know. I very much welcome all questions, comments or criticisms.

0. thesis

1. Attenuation of diffracted multiples in angle domain common image gathers.

2. Model-based 3-D seismic survey design as an optimization problem.

3. Attenuation of diffracted multiples with and apex-shifted tangent-squared radon transform in image space.

4. Relative performance of moveout-based multiple-suppression methods for amplitude variation with offset (AVO) analysis and common midpoint (CMP) stacking.

5. Fexible 3D seismic survey design.

6. Micro genetic algorithms.

7. Velocity-inversion of a seismic trace with micro genetic algorithms.

8. Illumination-based 3D seismic survey design.

9. Non-stationary filtering in time and frequency domain.

10. Attenuation of Multiples with land data. A case history.

11. Implications of multiple suppression for AVO analysis and CMP-stacked data.

12. A comparison of moveout-based approaches to suppression of ground-roll and multiples.

13.Presentation 1 (SEG-2004).

14.Presentation 2 (SEG-2004).

15.Presentation 1 (SEP-2005).

16.Presentation 2 (SEP-2005).

17.Presentation (SEG-2005).

17.One minute 2005/a>

Presentation (SEP-2007)

Para Herman