AER concludes excessive steaming to blame for Primrose bitumen release
Following a lengthy investigation, Alberta's Energy Regulator (AER) concluded that excessive steaming was to blame for the 2013 incident at CNRL's Primrose facility where bitumen was found leaking to the surface.
The AER ruled that CNRL did not violate any rules, however, they are imposing specific steaming restrictions to prevent further incidents. Primrose uses Cyclic Steam Stimulation to recover bitumen from the Clearwater Formation reservoir.
CNRL has yet to comment on whether the restrictions will affect production at Primrose.