"The drilling has had a small deviation and there is a small problem with the placement of the tubing of the tunnel through which the miners have to descend," Juan Lopez-Escobar, delegate of the Official College of Mining Engineers of the South, told La Vanguardia. that advises in situ the team that carries out the excavations.
López-Escobar has set a very clear example to understand what has happened: "This is what can happen when drilling at home. When you find a hard wall, the drill dances and deviates. Well, that happened with the perforation. By inserting the tube, which is straight, it can not go to a certain depth. They had to remove it to put the drill back with a little more diameter. "