There are a variety of ways to drill a borehole. However, there are 2 main borehole drilling methods. These borehole drilling methods are mud drilling and percussion drilling. Let’s take a closer look at what each method involves.
BOREHOLE DRILLING METHODS
1. MUD DRILLING
Mud drilling is used in areas where there is no rock in the ground. It can also be used where there is softer ground. It entails digging holes in the garden. These are filled with water and thickened with additives. This water is then pumped into the borehole via the drill bits.
This fluid transports the debris through the hole and up to the surface. This mud is recycled and reused during the drilling process.
As a result, this thickened water secures and steadies the walls of the borehole while drilling.
It’s important to note that mud pans can be used on properties where mud holes can’t be dug. (For example, where gardens are paved). So don’t despair if your property does not have an option for digging holes.
2. PERCUSSION DRILLING
Percussion drilling means that compressed air is blown down the hole for drilling. Steel casing is placed on the bedrock. As a result, the hole is then drilled through the bedrock with a compressor. You get various types of drill bits depending on the type of rock or sediment you are drilling through.
This type of borehole drilling is more costly than mud drilling. This is due to the cost of the compressor and the diamond-tipped drilling heads.
The type of drilling method used will depend on the area in which you live. Additionally, the type of underground soil formation you have will also determine the drilling method used.
However, these methods can also both be utilized when drilling the same hole. The key is to know when to switch methods. When the ground is soft then mud drilling will be the best option. Alternatively, as you reach bedrock then percussion drilling would be a better option.
The drilling contractor will identify the underground formations during the drilling process and use the appropriate drilling process.
Drilling a borehole is a fantastic investment that will yield long-term benefits!
Contact us today for your free borehole drilling quote, Cape Town!.