School of Petroleum Engineering, UNSW 3 Hoisting System Drawworks Drum Brakes Catheads Block and tackle Drilling line Round strand rope Service life evaluation of wire rope (ton-miles) Field troubles and their causes Slip-and-cut program Ton-mile estimation Ancillary equipment The hoisting system is a vital component of the rig equipment. It provides a means of lowering or raising equipment (e.g., drillstring, casing and other surface and subsurface equipment). Two routine works carried out with the hoisting system are: Making a connection and Making a trip. Making a connection and making a trip are presented in Figs. 3.1 and 3.2. The hoisting system is made up of three main components: 1. Drawworks, 2. Block and tackle, 3. Derrick and substructure.
