W
Well drilling supervisor responsibilities, 9-1
groundwater exploration, 9-3 to 9-4
Well development and completion, 9-15 to 9-16
kelly-drive rotary drilling operations, 9-9 to 9-10
Well drilling difficulties, 9-13 to 9-14
mud pits, 9-9
rotary drilling, 9-4 to 9-6
crooked holes, 9-14
rotary drilling bits, 9-9
fishing, 9-15
rotary drilling crew, 9-6 to 9-9
top-head drive rotary well drilling, 9-10 to 9-13
recovery of stuck drill pipe, 9-14 to 9-15
types of wells, 9-4
Well drilling safety, 9-16 to 9-17
water sources, 9-1 to 9-3
INDEX-6
