Se realizó pasantilla en control de niveles (lodo), zarandas, trabajo en boca de pozo, engrapador (encuellador) y perforador (taladro convencional e hidráulico).

https://pe.linkedin.com/in/arbey-vilitanga-72356236

Encuellador" ="derrick man", [montador de tuberías, torrero].

https://forum.wordreference.com/threads/encuellador.1383198/

The name derrickhand comes from the position they typically occupy, which is at the top of the derrick. From this position they guide the stands of drill pipe, typically 90 feet (27 meters) long, into the fingers at the top of the derrick while tripping (removing the drill string) out of the hole. When tripping into the hole (or "running in") they will pull the pipe out of the fingers and guide it into the elevators suspended from the top drive. Traditionally, the derrickhand also works closely with the mud engineer (see drilling fluid) when not tripping pipe since they are not needed in the derrick.

https://en.wikipedia.org/wiki/Derrickhand

Most of the time, the "encuelladero" is the platform where the derrickman works, connecting and disconnecting the pipe from the elevators and moving it into position in the monkeyboard. This platform is about 90 feet about the rig floor.

https://www.proz.com/kudoz/spanish-to-english/petroleum-eng-...