Review Of History Of Drilling
Groundwater is acquired mainly by building wells. Wells in their structure can be divided into two groups: mining and drilling (tubular).
Wells is a vertical shaft that extends to the aquifer. Dug wells usually reach a depth of 3 to 15 m. It is hard and costly to dig a well in the shallower surface waters which are contaminated.
Drilling wells usually turn out to be cheaper than mine, but require ample underground aquifers. Drilled well can take water from a depth of more than 30 m. These wells are drilled wells, fixed (lined) metal and at depths of less than 6 m, asbestos, plastic pipes. Tube wells are usually equipped with hand pumps or electric pumps. At the bottom of the well there is usually set filter.
And now let’s turn to history of drilling. Excellent taste of groundwater quality has always attracted people. In order to use the drinking water and where water from the surface underlain by a shallow, there were performed excavations. At more deep-lying people deepened wells and boreholes.
Ancient manuscripts preserved record of wells, boreholes, constructed in Egypt, even in 2000 BC. In our time, all the wells after clearing were used for drinking water.
In Egypt for drilling of wells people used stone chisels, tied to wooden poles, in China – to bamboo. Later they hung on the ropes. Chisel lifted and dropped into the hole, destroying the breed.
In the twelfth century in Europe were built specifically for the first borehole water. In France, one of the wells provided water, which is flowing on the surface in the form of a fountain. These wells subsequently became known as artesian, under the name of the area where the first was built flowing well.
Special development drilling on the water reached in the extraction of salt. Heavily saturated salt groundwater through wells were simply raised to the surface and evaporated. In Russia, such wells were called “pipes”.
In the seventeenth century there was written first written guide on drilling of water wells. It describes the process of drilling and equipment for it.
The extensive development of water drilling was only after 1917. There were large specialized organizations, factories started production of domestic drilling rigs, equipment and tools. It changed the technology of drilling for water, organization of drilling and drilling work. Drill steel hard alloys, shot, and diamonds. People started to apply such methods of drilling wells for water, as a hydrodynamic, hydropercussion, rotary with blowing air, vibration, etc.
Now there are developed and commercially produced improved design filters. Drilling rigs are fully mechanized. Rock drilling largely supplanted by the rotary.
If before 1960 wells for water main method of constructing a water supply for cities and industrial enterprises, but now their main number is drilled for physical persons.
No doubt water has an important place in our lives. In many cases people want to have an independent or alternative water supply source. If you are one of those who need information on well drilling, please check out this site. There you may find lots of details about boreholes for water and what is needed for them.
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