Ann: Advent Energy - Rig and Production Testing E, page-3

re: Ann: Advent Energy - Rig and Production T... I got this from Yahoo answers haha.

"The drill is what we punch the holes with. It has a rotary head that travels up and down the mast to turn the steel. On deep hole drills you will usually drill with mud or mud rotary, on shallower drills (like 3000 ft) you run air rotary or mud or you can drill reverse circulation, with an air driven hammer. Now a work over rig doesn't have a top or power head. Its really just a big winch for running casing tools or clean outs in and out of a hole that is all ready drilled. We use them for setting well casing allot of times or just reworking and older hole"

So it looks like we are just putting down new casings to test the flow rates/production testing.