Traditional well represurizing is done with steam ... This works well for shallow wells (to 2000 ft) then it becomes difficult to keep it hot enough.
Deeper wells have used fire flood technique ... inject air into the well and ignite the oil ... it heats up and oil flows better ... problems ... air is 80% nitrogen and this can cause problems in the well. also if air is injected through well head, buring oil can coke and basically mess up the flow of oil.
CMD injects pure oxygen (no nitrogen) into the top of the reservoir through a separate injector away from wells. under pressur the oil combusts and creates CO2 ... fireflood. The heat in the reservoir also creats steam. advantages ... no N, CO2 combined with oil will make it lighter and worht more, heated oil will flow better.
Production at pleito creek (pilot project) is 225 bpd (as of sept 30). I expect Dec 31 numbers to be much higher. Plus if the CMD technology is proven successful here NNN will be able to upgrade oil in ground to proven reserves.
NOTE: CMD is ideal for wells between 2000 and 6000 feet with oil between 11 and 21 API (eg alberta oil sands are 6-8 API). There is a lot of untapped (and until now unreachable) oil in the US alone that fits this category
Loading...
Loading...