You also need to be aware of regulations regarding proper well drilling. Improper techniques can contaminate and ruin wells for miles around your drill site.

There are many sites online that show various ways to create a well. As Frank mentioned, a lot depends on your area and various types of material you have to penetrate.

I shudder when I think of the crazy things people around the world do when they create wells with a basic lack of understanding or how precious our ground water is. I have seen drillers in the Caribbean drill a 70 foot deep hole in looking for water. Not find the water then pull up and move to a different site to try again. When asked if they are going to refill the hole, the response is, "build an outhouse over it". (in Spanish of course)