draw-works

The oil fell evenly in clouds all around the derrick and draw-works due to the windless autumn days.

The segment of drilling line from the draw-works to the crown block is called the "fast line".

A draw-works is the primary hoisting machinery that is a component of a rotary drilling rig.

A modern draw-works consists of five main parts: the drum, the motor(s), the reduction gear, the brake, and the auxiliary brake.

The motors can be AC or DC-motors, or the draw-works may be connected directly to diesel engines using metal chain-like belts.