A Computational Mathematician Combusts: Simulation of in-situ Combustion for Heavy Oil Recovery

Large scale production of very heavy oil is gaining momentum because of the
decline of easy to produce reservoirs, the increasing oil demand and subsequent
rising oil price, which makes such resources more economical.
Considering the pressure on the oil market and our still very heavy dependence
on oil, this move to heavy oil production seems inevitable.
Typically, heavy oil reservoirs are stimulated
thermally. Injecting steam that is generated at the surface is not
always viable or desirable.
An alternative technique for production is In-Situ Combution (ISC)
where a steam drive is generated in the reservoir itself.
In this process, (enriched) air is injected in the reservoir. After ignition
a combustion front develops in-situ that burns a small percentage of the oil in place
and slowly moves through the reservoir producing steam along the way.
A side benefit of this process is that the heat thus
generated often cracks the oil into heavy, undesirable components (the "guck") that stay
behind in the reservoir and lighter, more valuable components that can be
brought up to the surface.
Performance prediction of ISC projects is rather tricky and poses many
computational challenges.
In this talk I'll discuss our work in ISC simulation, which is centered around
the design of upscaling methods for kinetics and critical reservoir heterogeneities
supported by laboratory experimentation.

Video of this event is available on mathtube.org.