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Drilling is well known to mankind even before our era. For example, in China they built in those times with hollow bamboo beams hundreds of meters deep wells with a view to mining KPC (mainly water) .
In the 20-s, the nineteenth century in France in the province of Artois successfully drilled a few relatively deep water well drilling. The drilling was: to tube wine пикообразное chisel, tube hung on полиспасте,And, by using force gravity pipe and chisels, strikes, like leaning baba copra, destroying mountain treasure and deepen the well-bore.On the basis of fragments of rock was removed on the day the surface with the assistance of an ad hoc желонки, use in the borehole at the rope.
in 1845, French engineer as well.Фовель suggested to clean the bore wells splinter shattered rock dr fluid flow. This proposal has been successfully applied in 1859, in the US, colonel "New Zealand Veterans".
Speed harness barrel wells slide hammer way to reach several meters per day, and water depth does not exceed 500 meters. Therefore, continued the search for new ways to drilling,And in the beginning of the twentieth century was invented rotary rotary drilling method, in which the destruction of the rock on the slaughter was carried out chisel,Rotating with the mouth wells rotor through the drill. Barrel penetration rate has increased by more than an order, and well drilling depth - up to 3-4 km.
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