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Fracking has been used in the Canadian province of Alberta for decades. However, this technology only experienced its breakthrough a few years ago. Rock has been broken ten thousand times to extract crude oil or natural gas. The consequences are being investigated at the University of Edmonton.
Preparations for fracking in a well in Granum, Alberta, Canada.
From the air, in a Cessna flight, perhaps the gigantic expanse of underground oil and gas deposits can be better measured. The foothills of the Canadian Rockies southwest of Edmonton can be seen on the horizon. More and more pits gradually appear in the ground. They can be found in residential areas and sometimes even in the garden of a house, but also in the middle of the forest and can only be accessed via a straight and dead-end access road. In some of them, the traditional pump jacks still move patiently up and down. Most, however, lack such flashy facilities; only a few pipes and a tank are visible. Often these are the wells where, for some years now, hydraulic fracturing, or fracking for short, has been used to extract unconventional oil or natural gas deposits (see the addition “Canada has huge reserves”).
