We present a discussion of the state-of-the-art on the use of discrete fracture networks
(DFNs) for modelling geometrical characteristics, geomechanical evolution and …

We review ten historical Enhanced Geothermal Systems (EGS) projects and find that
typically, during injection:(1) flow from the wellbore is from preexisting fractures,(2) …

A recently developed unconventional fracture model (UFM) is able to simulate complex
fracture network propagation in a formation with pre-existing natural fractures. A method for …

The imbibition of fracturing fluid into the shale matrix is identified as one of the possible
mechanisms leading to high volumes of water loss to the formation in hydraulically fractured …

We developed a hydraulic-fracturing simulator that implicitly couples fluid flow with the
stresses induced by fracture deformation in large, complex, 3D discrete-fracture networks …

In enhanced geothermal systems (EGS), the natural permeability of deep rocks is normally
not high enough and needs to be increased. Permeability increase can be achieved through …

The interpretation of microseismic data was initially focused on hydraulic fracture length and
height, providing an important measurement to calibrate planar fracture propagation models …

The classical concept of hydraulic fracturing is that large, wing-shaped tensile fractures
propagate away from the wellbore. However, in low matrix permeability settings such as …

Relative to water-based fluids, non-aqueous fracturing fluids have the potential to increase
production, reduce water requirements, and to minimize environmental impacts. Since the …

With the huge growth in the stimulation of naturally fractured formations, it is clear that the
industry needs new hydraulic fracturing simulation tools beyond the limits imposed by …