Tubular Deep Wells

Tubular Deep Wells

The equipment is the same as previously described but the process is slightly different. Install a short starter casing with side spout and prepare a settlement trench. Add drilling compound to the work water. Drill the hole a little larger than the outside of the well casing to the desired depth or rock formation.

Have the casing ready to install and keep the water circulating. When ready to install the casing, disconnect the pressure hose from the drill pipe and place it where it will keep the drill hole full of water until the entire amount of casing needed is installed. While performing this operation, be sure to raise the drill pipe slowly so that the water level is not lowered while removing the drill pipe.

Attach lift fittings to the first section of casing with the drive shoe on the bottom end and place it in the drill hole and lower it to the work level. Clamp off casing at the work level. Add additional casing as required to the bottom of the drill hole. Insert the drive hammer and set casing securely, or cement or grout as required.

The starter casing may be removed or left in place as the job requires. Now add a 50 ppm available chlorine solution to the work water and complete the drilling, the installation of screens and the development.