Viktor Tokle developed a system for directional core drilling while he was employed by SINTEF (an industrial research foundation) in Trondheim, Norway. The system which later is called DeviDrill was launched by Devico founded by Viktor Tokle in 1988. Since that date it has been used on various projects in more than 40 different countries around the world. Devico launched the wireline version of the DeviDrill in 2001. The DeviDrill WL allows continuous measurements and core sampling during steering.