How Borewell Drilling Process done?
The borewell drilling process typically involves the following steps:
The site for the borewell is selected based on factors such as water availability, distance from sources of pollution, and the type of soil and rock in the area.
Preparation of drilling rig
A drilling rig is set up at the site. The rig is equipped with a drill bit and other equipment necessary for drilling.
The drilling rig is used to bore a hole in the ground. The drill bit is lowered into the hole and rotated to cut through the soil and rock. The cuttings are removed from the hole using a mud pump or other means.
Inserting the casing pipe
Once the borehole is completed, a casing pipe made of PVC or steel is inserted into the hole. The casing pipe is perforated at the bottom to allow water to enter the well.
The annular space between the casing pipe and the borehole is filled with gravel to prevent collapse and to allow water to flow freely into the well.
Installing a pump
A pump is installed at the bottom of the well to lift the water to the surface.
Once the borewell is completed, it is “developed” to remove any debris or fine material that may have accumulated during the drilling process. This is done by flushing the well with water under pressure.
The well is tested to determine its yield and water quality. This involves measuring the rate of water flow and analyzing the water for physical, chemical, and bacteriological parameters.
Regular maintenance of the borewell is necessary to ensure its safe and efficient operation. This includes periodic cleaning, disinfection, and testing of the water.
It is important to work with a licensed and experienced borewell contractor who can assess the site and the geological conditions to determine the feasibility of drilling a borewell. Proper planning, execution, and maintenance of the borewell can help ensure a reliable and safe water supply for many years.