Boreholes are drilled wells that are used to extract water or other fluids from the ground or to sample soil and rock formations for geological, environmental, or engineering purposes. Boreholes can be classified into two categories: wet and dry boreholes.

Wet Boreholes

A wet borehole is a well that produces water or other fluids. It is typically drilled into an aquifer, which is a layer of permeable rock or sediment that contains water. The water in the aquifer is under pressure, and when the borehole is drilled into it, the pressure forces the water up the borehole to the surface.

Wet boreholes can be used for a variety of purposes, including:

Water Supply: Wet boreholes can provide a source of clean water for drinking, irrigation, and other purposes.

Geothermal Energy: Wet boreholes can be used to extract geothermal energy, which is heat stored in the Earth's crust. The hot water or steam produced by the borehole can be used to generate electricity or to heat buildings.

Mineral Exploration: Wet boreholes can be used to explore for minerals and other resources that are dissolved in the groundwater.

Dry Boreholes

A dry borehole, on the other hand, is a well that does not produce water or other fluids. It is typically drilled into a layer of rock or sediment that does not contain water, or into an aquifer that has been depleted of its water.

Dry boreholes can also be used for a variety of purposes, including:

Soil and Rock Sampling: Dry boreholes can be used to extract soil and rock samples for geological, environmental, or engineering purposes.

Geotechnical Investigations: Dry boreholes can be used to investigate the properties of soil and rock formations for construction projects, such as building foundations or roads.

Groundwater Monitoring: Dry boreholes can be used to monitor the groundwater levels and quality in an area, even if the borehole itself does not produce water.


In summary, wet boreholes are wells that produce water or other fluids, while dry boreholes are wells that do not produce water or other fluids. Both types of boreholes have important uses in a variety of fields, including water supply, geothermal energy, mineral exploration, soil and rock sampling, geotechnical investigations, and groundwater monitoring.

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Five Facts About Borehole Drilling That You Need To Take Note Of:
1. Know Your Borehole Casings:The Preferred Borehole Casing In Zimbabwe Is Class 9 and 10 (Pressure Classes.)This is because Class 9 and Class 10 Casings are more collapse resistant. The strength of a Casing is often described as collapse resistance.

2. Borehole Drilling Depth: The exact depth, of where the water is located, cannot be established by the drilling contractor nor the Water Surveyor (Borehole Siter).

3. The Is No 100% Guarantee On Water: It is important to note that it is never a 100% guarantee that any hole will yield water, the amount and water quality can also not be guaranteed by the drilling contractor and water surveyor.

4. Borehole Siting or Water Surveying Is Important: Making use of a hydrologist or traditional water diviner will increase your chances of having a successful borehole that will yield a sufficient amount of water.

5. Know The Risks: The risk of the borehole drilling lies with the property owner. The client will still be liable for the drilling costs irrespective of a borehole yielding water or not.

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Nakiso Borehole Drilling has experience and knowledgeable workforce to work on any type of installation. From solar powered, electrical and manual pump installation, we do it all under one roof. Nakiso Borehole Drilling covers borehole siting, drilling and installation of pumps.