Subsurface Dynamics was tasked with determining the optimal Pressure Sink Mitigation (PSM) strategy and its impact on fracture growth in a depleted reservoir.
FORMATION: MONTNEY, ALBERTA
Scope of Work
Using proprietary data from the Client, Subsurface Dynamics history matched production from existing wells to create a pressure-depleted grid. Fracture modeling was then performed on the depleted grid for a pair of infill child wells. SSD then investigated the impact re-pressurizing the parent wells would have on child well fracture growth. Scenario’s tested included defensive frac injection, re-frac of the parent wells, and preloading parent wells with varying injection volumes.
- PSM protected parent wells from detrimental frac hits.
- PSM allowed fracs to have more growth into virgin reservoir as less energy was lost to the depleted zones.
- Frac height growth and the propped area were significantly improved by up to 25%.
- Resulting production from child wells increased by 10%.