3D Anisotropic Damage Mechanics simulation using MPM. The 3D simulation shows the growth of the hydraulic fracture and its arrest against the dipping fracture planes represented as weakly bonded interfaces. The 3D simulation is described in URTeC 2902985 and is shown to reproduce laboratory tests presented in URTeC 2460449
Impact on fracture propagation of fracture flaw distance from injection point in weak interfaces
Impact of perfect and weak interfaces on fracture propagation in the presence of an interface fracture flaw near the injection point
Effect of Anisotropy on Fracture Propagation Using Anisotropic Damage Mechanics and Material Point Method
First Break July 2017 article titled “Geomechanical modelling using Poro-elasticity to prevent frac hits and well interferences” describes FracGeo’s new technology currently used across US shale plays to predict lateral and vertical interferences between unconventional wells. A special focus is given to interferences around depleted wells and the new approach used to estimate very quickly the extent of the asymmetric pressure depletion. The use of an asymmetric tri-linear model and a new implementation of the Fast Marching Method (FMM) to estimate pressure depletion is illustrated on a real Eagle Ford well. The first and last page of the First Break article are shown below
Read the article
The First Break article contains animated figures that describe the evolution of key properties illustrating the well interference
Figure 7 shown below, illustrates the evolution of pressure during fracing for an Eagle Ford child well that is only 800 ft away from a parent well
Figure 8 shown below, illustrates the evolution of stress during fracing for an Eagle Ford child well that is only 800 ft away from a parent well
Figure 9 shown below, illustrates the evolution of pore pressure during fracing for an Eagle Ford child well that is 1300 ft away from a parent well
Case studies from the Wolfcamp will be published in the coming months.
For more information on the new technology or to request a full copy of the First Break article, please contact us.