At Apple Valley Well Drilling, Inc, we use a Rotary Drill to complete our wells.Most Domestic wells are drilled to 6 or 8 inches in diameter. Whereas Commercial or Irrigation wells are often drilled at larger diameters.
Rotary Drilling is when a drill bit is attached to a length of connected drill pipe. The drill bit is made of tough metals so as the drill rotates, the bit grinds the formation. The broken formation is then flushed upward and out of the hole. The drillers force air and water to create slurry down through the drill pipe to force the water and formation back to the surface. This slurry also serves to cool and lubricate the drill bit. As the drill bit intersects water, bearing formations it will flow into the hole. Drillers carefully monitor the depth of water by tracking the formations as they drill. By monitoring the depths and formations, this process assist with future drilling in the area.