The first pilot projects started a dozen years ago and those in Weyburn-Midale began in 2000. At that time we did a number of things. In particular, we took the basic steps before filling the reservoirs with CO2. We wanted to be certain that we understood the physical soil parameters, for example the acidity, before even adding the CO2. There were also seismic programs to check if the CO2 stayed in place and did not move outside the targeted area.
Programs are ongoing, through which we seek to ensure that there are no long-term consequences linked to seismicity or to potential leaks.