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Seismic Inversion and AVO
Brian H. Russell

Historically, reflection seismic data was primarily seen as a tool for identifying structural anomalies. With the development of “bright-spot” techniques and post-stack inversion in the 1970’s, seismic data was increasingly used to identify stratigraphic anomalies. The limitation of these techniques was that they often produced incorrect identification of fluid anomalies. The amplitude variations with offset technique (AVO), developed in the 1980’s, allowed the interpreter to better identify such fluid anomalies. The last few years have seen rapid advances in inversion and AVO techniques, including their combination into such methods as elastic impedance and lambda-mu-rho (LMR), and the development of the simultaneous pre-stack inversion method. The participants in this course will learn the theory of seismic inversion and AVO, as well as the related techniques of multi-component and converted wave seismic analysis. Case studies from around the world and exercises that emphasize the application of the theory to realistic examples will also be included.

This course is designed for experienced petroleum geoscientists who wish a comprehensive overview of the subjects of seismic inversion and AVO. Attendees are expected to be familiar with the basics of seismic acquisition, processing and interpretation.

Outline
- Introduction to rock physics and fluid replacement modeling.
- P and S-waves, converted wave and multi-component seismic analysis.
- AVO theory and modeling.
- AVO analysis and cross-plotting.
- Post-stack seismic inversion
- Elastic impedance, RP/RS inversion, and lambda-mu-rho techniques.
- Simultaneous pre-stack inversion.
- AVO and inversion case studies.
- Acquisition and processing concerns.


Schedule and tuition
Venue: Sheraton Hotel Mar del Plata.
Duration: 2 days - November 14 and 15, 2005.
Course fee: U$S 200

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