Borehole Aquifer System
Borehole Aquifer refers to a geological formation which has structures or textures that hold water or permit appreciable water movement through them. Borehole aquifer is a group of formations, or part of a formation that holds satisfactory flooded leaky material to store and transmit water and to yield economical quantities of water to boreholes or springs.
In sandy or muddy aquifers, mud rotary drilling uses a drilling mud to keep the sand from collapsing and a rotating bit to bore through the sand. With an alluvial aquifer you will need to choose your gravel pack and slot size correctly to avoid it silting up, while in a competent rock formation you will need to decide carefully whether there is a risk of borehole collapse.
Why is an aquifer important?
A Borehole Aquifer is the storage medium from which groundwater is abstracted. It should always be managed properly and be protected from over-exploitation and contamination.
The Aquifer testing includes the withdrawal of measured quantities of water from or the addition of water to, a borehole and the measurement of resulting changes in head in the aquifer both during and after the period of abstraction or addition.
The process whereby a Borehole Aquifer is subjected to pumping from a borehole under controlled test conditions in order to determine the hydraulic parameters of the groundwater system through its response to the stress of abstraction.
Why is Borehole Aquifer testing important?
The purpose of aquifer testing is to control the hydraulic parameters of the Borehole Aquifer system which are used to quantify water resources and facilitate resource management. Less permeable material that acts as a water-yielding hydraulic unit of regional extent.
Are Borehole Aquifer systems important?
An aquifer system is a group of formations that contain enough saturated permeable material to yield economic quantities of water to boreholes and springs.
Borehole Aquifer systems is the second storage from the ground that is abstracted. Even though groundwater exists everywhere underground, some parts of the wet zone contain more water than others. An aquifer is an underground loose material which can produce useful quantities of water when tapped by a borehole.
Borehole Aquifers may be small, only a few hectares in area, or very large, underlying thousands of square kilometres of the earth’s surface.
Even if groundwater is not used by people, it still play an important role in the local environment and endure rural livelihoods that way. Plants might tap into it with their roots and animals may drink it when it comes to the surface as springs.