Explore proper well development using air with columnist Thomas Kwader.
Well development methods commonly include surging, bailing, pumping and compressed air. The most effective methods of well development employ techniques which allow water to move in and out of the screen as opposed to bailing or pumping which generally only allows for movement of water in one direction into the well. The back and forth motion of the water effectively breaks the “bridges” formed by using drilling muds and natural formation clays when water is moving only in one direction into the well. Well development with compressed air can be a very effective method when the physical characteristics of the well are considered. Development with compressed air generally involves lowering a small diameter pipe or tube to near the bottom of the well. Compressed air is applied from an air compressor at a pressure and rate great enough to lift the overlying column of water to land surface.