Of the subject, but are you familiar with High Pressure Air Injection (HPAI) as a tertiary recovery method. Essentially what they do is inject air at high pressure into resevoirs and the air combusts with some of the hydrocarbon and the gas vapors begin driving the remaining hydrocarbons towards the recovrey well.
geez, that last post of mine had so many errors in it, first things first, I'll try to get your name right (pddane).
high pressure air injection is something that the ...improved oil recovery group(or something of the sort) is working on. I believe their are some english blokes(Ph.d's, oil nerds etc) that are studying it. I can't remember at which university but its pretty interesting). Really, I'm not sure exactly how it's different than CO2 flooding. If my chemisty is right, when you combust 02 and a hydrocarbon, you get water vapor and ...CO2. I think that when you inject CO2 into a resevoir that it behaves as a liquid at great depths and pressures. I would imagine that the combustion process is similar but not for sure. Anyway, long story short, a company that I like alot, called Encore Acquisition is involved in it in the Cedar Creek area.
Thanks for the EAC reference. They look very similar to DNR in all characteristics and are worth studying. They, like DNR have a specialty for part of their business model in acquiring fields that are at the end of their useful life on a secondary recovery basis and then applying tertiary recovery techniques to achieve increased production.