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The drilling of the fourth hole was stopped in April 1992 at 11,882 metres (38,983 ft) of depth. Drilling of the fifth hole started in April 1994 from 8,278 metres (27,159 ft) of depth of the third hole. Drilling was stopped in August 1994 at 8,578 metres (28,143 ft) of depth due to lack of funds, and the well itself was mothballed. [7] [12]
The "Well to Hell", also known as the "Siberian hell sounds", is an urban legend regarding a putative borehole in the Siberian region of Russia, which was purportedly drilled so deep that it broke through into Hell. It was first attested in English as a 1989 broadcast by an American domestic TV broadcaster, the Trinity Broadcasting Network. [1]
Since 2013, the project has set five records for drilling wells with the deepest depths in the world. In April 2015, the O-14 production well was drilled, with length of 13.5 kilometers (44,000 ft), in April 2014 the Z-40 well was completed with a length of 13 kilometers (43,000 ft), in April and June 2013 - the Z-43 and Z-42 wells 12.45 ...
As the race in space was winding down, soviet scientists turned inwards. You'd never guess that this is the site of one of their great achievements. This hard-to-find rusty cap in the ruins of a ...
After underground operations began, the project had a mine life estimate of 27 years, based on a drilling exploration program to a depth of 1,220 m (4,000 ft). Production ceased in 2001, [12] and the Mir mine closed in 2004. [13] [14] The mine was recommissioned in 2009, and is expected to remain operational for 50 more years. [2]
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Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed - and obtained a large sample ...
the deepest boreholes (Core drill, for geological exploration), and; the longest boreholes (Extended Reach Drilling, for oil production).