Elfen tgr is applied to hydraulic fracturing using full physics to simulate complex coupled geomechanical and hydraulic systems in 2D & 3D to answer challenging fracture design problems at multiple scales.
By understanding the likely fracture propagation and proppant placement, completion designs may be optimised and appropriate landing heights selected.
TGR case study
The new approach lies in the fact that hydraulic fractures can follow arbitrary fracture paths in 2D/3D simulations; as dictated by stress state, material properties and heterogeneity rather than the topology of the finite element mesh. Further to this, only regions near the hydraulic fracture tip are adaptively re-meshed which ensures that stress concentrations can be effectively captured without the need for a computationally expensive global re-mesh.
Elfen tgr technology combines advanced rock constitutive models and continuum damage mechanics with discrete fracturing in arbitrary 3D directions; offering true 3D fracture interaction and propagation capabilities. Models are poro-elasto-plastic, fully coupled with fluid flow within the propagating fractures as well as within the matrix. This allows simulating full cycle of stimulation-production-refracturing-production operations. Stress shadows, hydraulic-natural fracture interactions (DFN stimulation), fracture closure, proppant transport, multi-well interference, formation damage, flow back, mixed mode failure are all accounted for in the analysis to provide a unique and realistic representation of the subsurface hydraulic fracture network growth.