Top Drive In Drilling Rig
https://www.drillingmanual.com/2021/09/top-drive-system-drilling-rig.html A top drive is a very essential part of the equipment of drilling. It is located on a drilling rig hoisted on a mast or a derrick. The top drive is a combination of electrical and mechanical motor systems. Top drives have a variety of uses and prove beneficial in drilling operations ranging from truck-mounted rigs to offshore drilling platforms. However; there are some variations between the onshore and offshore top drives like an offshore drilling platform moves vertically up and down on the rails to avoid the system being carried away by the strong oceanic winds. It is basically a part of rotatory systems on drilling rigs that helps rotate the drill stem for performing downhole drilling operations.