FaultMod is a Gocad plugin for modeling faults, fault networks and related uncertainties.
Building geological models is always an underconstrained process. A large part of the uncertainty is carried by faults because faults zone are poorly imaged in seismic. Furthermore faults dramatically impacts fluid flows and building models cohrent with geological concepts and knowledge is a key to increase models quality when few data are available. FaultMod offers several tools to integrate geological concepts in the modeling workflows.
Stochastic fault networks simulation
FaultMod contains algorithms to simulate stochastically fault networks given structural data (distributions for dimensions and orientation) and conditionning data (faults sticks). Faults are modelled as implicit surfaces using StructuralLab in order to fit to the input faults sticks. The faults relations within a fault network are represented by a binary tree.
(see : Stochastic simulations of fault networks in 3D structural modeling)
Stochastic fault downscaling
Faults are often models as one surfaces whereas displacement profile studies indicates that the surfaces is builded from several fault segments that linked together during the growth of the fault network. FaultMod integrates an algorithm to downscale a fault surface into a set of fault segments.
(see : Sampling the uncertainty associated with segmented normal fault interpretation using a stochastic downscaling method)
Fault displacement field
The faults are often represented by a planar surfaces but it can also be described as displacement field within a volume. The Vectorial Field Shape Deformation algorithm allows to model the displacement field associated with a fault. It offers a tool to study fault kinematics, fault displacement profiles and to restore faulted structure.
(see :Vector Field Based Fault Modelling and Stratigraphic Horizons Deformation)
(Displacement modelled using VFSD in FaultMod)
Current researches are suited to integrate the fault kinematic is stochastic downscaling and fault network simulations.
See more pulications :
- Method for stochastic inverse modeling of fault geometry and connectivity using flow data
- Assessing the impact of fault connectivity uncertainty in reservoir studies using explicit discretization
- Spatial constraints for the stochastic modeling of fault networks in the presence of large structural uncertainties