What Is A Borehole - Everything You Need To Know About Borehole Drilling in Zimbabwe

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A borehole is a generalised term for any narrow shaft drilled in the ground, either vertically or horizontally. 

A borehole may be constructed for many different purposes, including the extraction of water or other liquid (such as petroleum) or gases (such as natural gas), as part of a geotechnical investigation or environmental site assessment, for mineral exploration, or as a pilot hole for installing piers or underground utilities. Boreholes used as water wells are described in more depth in that section.

In the engineering and environmental consulting fields, the term is used to collectively describe all of the various types of holes drilled as part of a geotechnical investigation or environmental site assessment. This includes holes advanced to collect soil samples, water samples or rock cores, to advance in situ sampling equipment, or to install monitoring wells or piezometers. 

Samples collected from boreholes are often tested in a laboratory to determine their physical properties, or to assess levels of various chemical constituents or contaminants.

What Is A Borehole - Everything You Need To Know About Borehole Drilling in Zimbabwe

Typically, a borehole used as a well is completed by installing a vertical pipe (casing) and well screen to keep the borehole from collapsing. This also helps prevent surface contaminants from entering the borehole and protects any installed pump from drawing in sand and sediment. When completed in this manner the borehole is then more commonly called a well: whether it is a water well, oil well or natural gas extraction well.

Groundwater is one of Zimbabwe’s most valuable natural resources. Even though most large cities get their water from surface sources such as lakes, rivers, and dams, it is estimated that there is ten times as much freshwater below the land surface than in all the lakes and rivers combined. Groundwater is a far safer water source than surface water because it is protected by soil or rock, and is not so easily contaminated. A properly constructed water well is the best way to ensure that the water you drink is safe and clean.

A properly constructed borehole/water well should last a lifetime. Whether drilling a borehole for industrial units or for a domestic supply there a several important key factors which should be considered before drilling proceeds.

• The location of the borehole and the design should be uppermost, the borehole should be drilled as far away from any potentially harmful contaminants as possible.
• The minimum yield, this is the least amount of water the borehole would produce in order to make it viable.
• The geological formations that will be drilled and the chances of potential aquifers.
• The depth and the diameter of the finished well, varies on smaller projects depending on drilling conditions but is important on larger ones as pumping equipment must be planned for at the outset.

All casings, liners and screens used should be to water authority regulations standards or (B.S. 879) and a gravel pack should be installed to act as a filter media whenever possible a sanitary seal should be set below ground, the depth depending on overburden formation and either cased or grouted up to ground or chamber level.

Water Systems Zimbabwe is looking forward to your call or WhatsApp Message.

Please feel free to leave a message on our WhatApp number or alternatively please call us and we will be able to help you straight away. If you would prefer, send us an email with your details and an outline of your enquiry and we will be pleased to come back to you.

We respond to all enquiries usually within 24 hours, but guarantee within 48 hours.

Our Contact Numbers Are:
Water Systems Sales: +263 77 389 8979.
Water Systems Sales: +263 71 918 7878.
Solar Systems Sales: +263 78 922 2847.
Solar Systems Sales: +263 78 293 3586.