Dont get too excited over CO2 injection for EOR. Some are making...

Dont get too excited over CO2 injection for EOR. Some are making it sound so simple but there can be problems. Amongst these is subsequent leakage/escape of the CO2 either through natural rock fractures or through old abandoned oil/gas wells. Many wells on the old fields predate the 1950's and the old abandoned wells may not have been plugged properly, or even at all. A discussion of possible problems is in detail on

http://www.albertasurfacerights.com/articles/?id=832

Now I am a long term holder and are very pleased with recent progress but caution that their EOR may face setbacks and may take longer than some anticipate.