Methods and systems for modeling subsurfaces containing partial faults

摘要

Disclosed herein are geologic modeling methods and systems employing function-based representations of horizons intersected by partial faults. An illustrative method embodiment includes: (a) obtaining a seismic image volume; (b) identifying a horizon within the seismic image volume, said horizon being intersected by a partial fau (c) deriving a function-based representation of the horizon, the representation being continuous except across the partial fau (e) constructing a watertight subsurface model using the function-based representation; (f) assigning petrophysical parameter values to compartments of the watertight subsurface model; and, optionally, (g) storing or displaying the watertight subsurface model.