Erik Nickel, the Chief Operating Officer of the Petroleum Technology Research Centre (PTRC), shows a collection of images from seismic shoots that have taken place at the Aquistore CO2 injection site in southeastern Saskatchewan. The images – which illustrate the growth of the CO2 plum underground over a number of years – demonstrate what can be achieved in the measurement and monitoring of CO2 deep in the subsurface.
“We were a bit surprised, actually, that we could see a CO2-related anomaly after just 36,000 tonnes of injection,” says Nickel. “The Deadwood Formation (the saline aquifer into which the CO2 is being injected) is about 3300 metres underground and the fact that the seismic array we established above the site was able to...
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