University cluster 1:2 Fractures from basin to well scale

Publieke samenvatting / Public summary

Doelstelling
This proposal aims at predicting the mechanical response based on discrete fracture-fault network models that include intermediate scale fracture-fault networks. This intermediate scale bridges between the induced small-scale fracturing around boreholes versus the critical loading of faults at the largest length scales for seismic risk.

Korte omschrijving
In this study we perform finite element (FE) geomechanical simulation to quantify mechanical response in terms of loading, failure and growth of complex network of pre-existing fractures-and-faults. This can be done to much greater detail by starting from a pre-existing network than by modelling the incipience of a new network. The characteristics of a pre-existing fracture-fault (F-F) network is best obtained from deterministic reservoir data combined with outcrop analogue studies with. Deterministic F-F network descriptions are used where feasibly, otherwise network characterizations in terms of shape, directions, spacings, heights and lengths are used to describe the discontinuity surfaces.