The borehole is drilled with 8” drill bit and 6” casing installed
thereafter up to the bottom.
_ Gravel pack is then fitted between the casing and the borehole wall.
This filters water from the rocks.
_ Borehole development follows after gravel packing which flushes out
any hidden silts from the screens until the water is sediment-free and
Water borehole drilling
There are many reasons to drill a borehole for water; be it the rising cost of mains water, remote distance from a mains water supply, or an unreliable and contaminated shallow well. Whatever the reason, Marines Well have the capacity and resources to service the requirement and are the Kenya's leading specialist in borehole drilling.
Before any drilling commences Marines Well commission an independent borehole hydrogeological survey. This prognosis is an essential requirement that provides an indication of the underlying hydrogeology – detailing the nature of the ground to be drilled, the likely depth at which water will be found and an indication of water quality. Whilst the prognosis is not a guarantee of success it will highlight risk at an early stage, minimising the risk of failure. Following a successful prognosis Following a successful prognosis a written quotation including a full schedule of the work that we will undertaken before on-site work commences. Drilling the borehole involves careful engineering and minimal disturbance; once the hole is drilled and completed a submersible pump is installed in the borehole and the water is pumped and tested. Once the water is approved for purity, the borehole can be utilised.
Access to an independent prognosis report (hydrogeological survey) – allowing an informed decision on the success of the project to be evaluated
Huge cost saving opportunities following installation
Rapid return on investment
Extension service to assist with maintenance of the borehole
Ground source heating
Ground source heating utilises the solar (geothermal) energy stored underground, and is becoming the most dependable, reliable and cost effective form of renewable energy for domestic and commercial users.
A heat pump can be used for both heating and cooling, and for each kW used to power the system it can return up to 4kW of heat. For the ground source heat pump to operate it is necessary to install a heat collection system in the ground.
Marines Well’s vertical ground source heating system involves drilling one or more boreholes. The vertical system eliminates the need to dig extensive trenches and reduces the level of disturbance, delivering overall consistency and efficiency. Utilising a borehole is the most efficient way of extracting heat from the ground.
Benefits of a ground source heating system:
Huge saving opportunities
Electricity used to power the heat pump is likely to produce 3 or 4 times its energy output from the ground source
Investment in renewable energy and a sustainable heating system
Reduction in CO2 emissions
Prior to all new installations, Marines Well provide a written estimate. This clearly presents the schedule of works and associated costs, with our terms of business.
To provide you with an estimate, Marines Well need information. For example, how deep is the borehole likely to be to find water, what are the geological conditions?
The first step is to obtain a hydrogeologist’s expert prognosis on conditions at your location.
If you wish to discuss what’s involved before committing to this, our water resources department will be happy to discuss how a typical project will proceed, and to answer your immediate questions. Whatever your borehole water drilling requirement, call free on 0800 542 7613. Or visit the Prognosis page.