Many static model practitioners embark on exercises of ‘geological modelling’, attempting to create a digital version of the geology as seen at outcrop. In practice this is futile. Even relatively high resolution models such as that for the Urgonian Shuiba analogue shown in below are clearly unlike the outcrop and close inspection of the outcrop would reveal a huge amount of missing detail.
Fortunately all the detail is rarely, if ever, required and we are saved the daunting task of capturing it all. We are in the business of building model representations: cellular proxies which capture the essence of the underlying complexity, extracting only the detail which is necessary to address commercial questions such as forecasts of resource volumes or fluid flow rates over time. We are building reservoir models rather than geological models and our focus is therefore on achieving a reasonable representation.