Russell Tutorial - Hampson

Once the inversion is complete, the work shifts to interpretation and prediction.

Keep your SEG-Y, LAS (well logs), and Horizon files in a separate Raw_Data folder. HR does not move your data; it creates links. hampson russell tutorial

In the world of quantitative interpretation (QI), few software suites command as much respect as (now part of CGG GeoSoftware). For geophysicists and petrophysicists, it is the gold standard for predicting rock properties—such as lithology and fluid content—from seismic data. Once the inversion is complete, the work shifts

The tutorial is honest about the limitations here—specifically the ill-posed nature of the inverse problem (where multiple Earth models fit the same seismic data). It introduces and sparse-spike inversion as regularization techniques to stabilize the solution. The final output, such as the Lambda-Rho (incompressibility) versus Mu-Rho (rigidity) crossplot, provides the ultimate lithology-fluid discriminant. Gas sands show low Lambda-Rho (compressible) but moderate Mu-Rho, whereas shales show high values for both. In the world of quantitative interpretation (QI), few

The Hampson–Russell Tutorial: A Paradigm for Bridging Theory and Practice in AVO Analysis