EOR Strategy Optimization with Multilateral Multi-Stage Completion

Project Summary

Subsurface Dynamics was tasked with determining the optimal water injector location(s) and injection rate waterflood scenario for an undisclosed pool in the conventional formation in Alberta containing horizontal multi-fractured wells. The operator was looking to evaluate response time and incremental recoveries.

Scope of Work

Using publicly available data and proprietary data from the client including expected completion characteristics, Subsurface Dynamics constructed a static and history matched dynamic model. Using the history matched model, existing horizontal wells were converted to water injectors to test the impact of injector location and injection rate.

Result

As a result of the full cycle modeling, the following operational improvements were achieved:

• Optimal existing horizontal well location for an injector was determined. Location can serve as the template for additional future waterflood locations.

• Impact of injection rate on repressurization rate and corresponding production profile was determined.

• Optimal scenario improved incremental recovery by 50% in impacted wells.