The document provides details about the rotary drilling method. It discusses how rotary drilling differs from cable tool drilling in that it uses a hollow drill bit attached to a string of drill pipe that rotates to cut through rock formations. It then summarizes the normal drilling operation process in 3 steps: 1) attaching the drilling apparatus into the hole, 2) the drilling process where the bit cuts through rock while mud circulates cuttings out, and 3) casing and cementing the drilled hole. It also briefly discusses final depth testing, well completion involving perforation or hydraulic fracturing, and installing a production tubing system.