Gas Lift-Part 3 Effect of Gas Rates and Depth of Injection on Well Performance

The big hoist that raises and lowers tons of drill pipe and other tools out of and into the hole is a vital piece of equipment in the hoisting system. This video explains that while the drawworks is a large, rugged, and dependable device, the rig crew must properly maintain it in order for it to provide reliable day-in-and-day-out service. Besides covering conventional DC drawworks, the video also shows the latest AC drawworks. Produced in cooperation with Transocean. 2001. petex.utexas.edu