Structural Models in Seismic Data

With the advent of extensive 3D data it is all too easy to determine top reservoir horizon from well picks, autopick and generate a structure map. Once generated this is then used in the first instance to generate a prospect and then subsequently as the input into reservoir modelling. Despite being fundamental in volumetric determination and prediction of fluid migration, the uncertainty, and inaccuracy, in this structure map is often under estimated.

Recent advances of automated fault picking in part reduces the time taken to generate structure maps and corresponding fault networks, which can reduce this uncertainty, but all interpretation still needs to be QC’d and be sensible. Critically, these advances still require the interpreter to understand both fault behaviour and impact on reservoir distribution and integrity.

The central theme of this event is construction of robust structural models and develop an understanding and appreciation of the uncertainties within them and how to evaluate multiple scenarios.