Oil and gas are found in the depths below ground. They have been waiting for us for millions of years. So it is necessary to go and look for them, and to do that there is only one way: to dig until you reach the deposits. These deposits are deeply buried, often several kilometres underground. Wielding a pick is not sufficient to make the oil gush! We use the technique of drilling. From the surface we can try to guess where the deposits are and propose hypotheses. But we’re never sure that they exist until we have reached them by drilling, until the hypotheses have been verified.
Exploratory drilling is very expensive. It is better not to make a mistake when we decide! There are several ways of knowing where to drill. Certain techniques even allow us to see below ground. It is by putting together the ideas and the work of a whole team that we can maximise the chances of success. After the exploratory drilling we decide, according to the results obtained, to continue or to stop the work in that area. |