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Petrophysics for Rock Physisc

Ensuring that the petrophysics is compatible with the rock physics workflow is a big step towards reducing uncertainty in any rock physics analysis. This video presented by Iestyn Russell-Hughes provides an overview of log editing, petrophysics QC and diagnostic best practices. It covers the key input logs, density, compressional sonic and shear sonic all need to be available and in good condition. Equal emphasis is required in both reservoir and non-reservoir intervals for mineralogy, and porosity computations since these are crucial in rock physics driven workflows. Attention to fluid properties of invaded and non-invaded zones is also important and extending the petrophysical interpretation beyond the interval of interest may be needed to extract trends and tie to seismic. A consistent approach in evaluating multiple wells should lead to reducing any uncertainty in analysis of rock physics results.