Oil and Gas

REI has experience with the following types of oil and gas applications:

In addition to these applications, REI continues to develop expertise in new areas. If your application is not among those listed, please contact us to discuss appropriate ways we may be able to work together.


REI has recently developed a computational model to predict flowback of hydraulic fracturing fluids after stimulation has been completed.  Using a combination of force and stress balances and computational fluid dynamics, our model is able to simulate many of the complex physical interactions that play a role in determining flow back rate and overall fluid recovery.

REI’s model includes considerations for:

  • Fracture lengths and areas for a given pumping rate
  • Fluid leak-off during fracturing and imbibition during shut-in and flowback
  • Asperities formation during fracture closure
  • Formation-driven fluid flows








REI has successfully used the model to predict the rate of fluid return vs. time and overall fluid recovery. REI is able to apply the model to optimize fluid recovery to ensure maximum fluid returned to the surface.



Contact us for assistance with your fracturing fluid
flowback project.

REI has recently completed a Department of Energy-sponsored perforationproject involving computational modeling of shaped-charge perforation for the oil and gas industry. Using a state-of-the-art geomaterials model and Material Point Method (MPM) High Performance Computing (HPC) modeling framework, our model is able to accurately predict the highly complex physics involved in predicting shaped-charge behavior in various rock types.

REI’s model includes considerations for:

  • Detailed shaped-charge parameters (e.g., explosive type, liner profile, liner material)
  • Calculation of jet formation
  • Detailed rock properties
  • Pore pressure effects
  • Rock stress conditions

REI has successfully used the perforation model to predict depth-of-penetration and penetration as a function of time. These calculations were validated using live-fire Time-of-Arrival (ToA) experiments into rock cores. The perforation modeling capability will enhance well production by providing cloud-based, high-performance computing software to assist in the design and selection of the penetrating charges.

Contact us for assistance with your
perforation questions.