Flow simulations of geomechanical models of faulting

摘要: Modern geomechanical simulation techniques – based on the finite element method, and using an advanced poro-plastic material description produce numerical outcomes that are in good agreement with experimental models of faulting processes, also agree outcrop observations natural fault damage zones. The correspondence between these independent investigation methods enables us to suggest approach can serve as a useful proxy for reality, even though there is no way prove results correct. In compensation, however, provide spatial temporal information cannot be obtained from physical or outcrops. Specifically, contain complete characterisation mechanical state at all points model it evolves. Here, we show how progressive deformed states used input create flow simulations enable examine consequences faulting. To transform petrophysical properties, develop algorithms strain since texture rock altered by strain, same controls properties. Our algorithm has primary dependence volumetric this determines whether permeability increased decreased; additional dependencies introduced account directionality distortional strains. Single-phase reveal variations mechanics behaviours ultimately expressed terms system differences. We illustrate development seals reservoir barriers, impact caprock seals.