Other Well Drilling Videos
Selected Videos - Part 1
The Baptist Method
One of the primary means of drilling a well used in undeveloped countries to drill wells is the Baptist Method. It requires a little water and a lot of manpower. A drillpipe with a pointed bit and a valve that only permits upflow is used to push through the layers of earth until water bearing sand is reached. On the downstroke, one driller forces the drillpipe down. On the upstroke, others using a pulley and a rope, pull the pipe back up to prepare for the next downstroke. On the downstroke, water and mud is pushed up and out of the pipe. A manual water re-circulating system is used. Bentonite is mixed in the water to keep the borehole open. There is a great video, posted on YouTube by josephstocker, that demonstrates the method. Unfortunately it has no sound. You may need to play it a couple of times to pick up on the details.
BAPTIST WELL DRILLING METHOD
I found several mechanized adaptations of the Baptist drilling method. Each utilize some type of motor or engine to pull the drill stem back up. This video by beamsclan on YouTube best demonstrates how a motorized system can make the technique much easier and faster.
MOTORIZED BAPTIST WELL DRILLING
This video, posted by beamsclan, shows how to make a drill bit to use in the Baptist method.
CONSTRUCTING A DRILL BIT FOR THE BAPTIST METHOD