Abstract

The collaboration of geophysicists, geologists, and reservoir engineers is of utmost importance in hydrocarbon reservoir evaluation and development. An important aspect of this collaboration is the derivation of critical rock properties, such as Poisson’s ratio, from seismic velocities obtained from well logging. Unfortunately, applicability of velocity‐based rock properties to reservoir evaluation is suspect. Response of a rock layer to the dynamic stresses imparted by the passage of a seismic wave may differ significantly from the response to static stresses due to overburden and pore fluid. It is, of course, the response to static stresses that is critical in reservoir development.

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