Transocean drilled a total length of 12,289 m (40,318 ft), with a record horizontal reach of 10,902 m (35,768 ft) in only 36 days.

Analyses show that the hole has reached its maximum size.
Analyses show that the hole has reached its maximum size. Do the math. To put that in perspective, Kola descends further than the deepest point of the ocean, which lies at nearly 6.8 miles (11 kilometers). The result was the Kola Superdeep Borehole and a drill-depth of more than 7.5 miles (12 kilometers). [1], In terms of true vertical depth, it is the deepest borehole in the world. Drilling began on 24 May 1970 using the Uralmash-4E, and later the Uralmash-15000 series drilling rig. All this drilling wasn’t for nothing though as some scientific discoveries were made. ", Sakhalin-1 Project Drills World's Longest Extended-Reach Well, "The KTB Borehole—Germany's Superdeep Telescope into the Earth's Crust", "Project images crust, collects seismic data in world's largest borehole", "Гордость пойдет в утиль: Кольская сверхглубокая скважина будет ликвидирована (Pride goes to waste: Kola superdeep borehole to be scrapped)", "The German Continental Deep Drilling Program KTB: Overview and major results", "Transocean GSF Rig 127 Drills Deepest Extended-Reach Well", "Maersk Oil finished Drilling (BD-04A) well at Al-Shaheen field, Qatar", Official Kola Superdeep Borehole website (in Russian), The World's Deepest Hole – Alaska Science Forum – July 1985, Kola Superdeep – Scientific research results and experiences by PhD A. Osadchikh, International Association of Oil & Gas Producers, https://en.wikipedia.org/w/index.php?title=Kola_Superdeep_Borehole&oldid=986274496, Buildings and structures in Murmansk Oblast, Science and technology in the Soviet Union, Articles with Russian-language sources (ru), Short description is different from Wikidata, Articles containing Russian-language text, Creative Commons Attribution-ShareAlike License, The United States had embarked on a similar project in 1957, dubbed, This page was last edited on 30 October 2020, at 20:59. Then, however, something unexpected happens, and the … The project was officially terminated in 1995, due to the dissolution of the Soviet Union, and the site has since been abandoned. Boreholes were drilled by branching from a central hole. [4], This idle period may have contributed to a breakdown after drilling resumed; on 27 September 1984, after drilling to 12,066 m (39,587 ft), a 5,000 m (16,000 ft) section of the drill string twisted off and was left in the hole.

RUSSIAN scientists dug the world's deepest hole and discovered water from Noah's great flood, 'disproving the myth' that the earth is made up of dry, rocky layers, it has been claimed. [16][17], In terms of depth below the surface, the Kola Superdeep Borehole SG-3 retains the world record at 12,262 metres (40,230 ft) in 1989, and is still the deepest artificial point on Earth. [16][17], In terms of depth below the surface, the Kola Superdeep Borehole SG-3 retains the world record at 12,262 metres (40,230 ft) in 1989, and is still the deepest artificial point on Earth. [2], The main target depth was set at 15,000 m (49,000 ft). World’s deepest manmade hole dubbed ‘well to hell’ plunges 40,000 feet By Charlotte Edwards, The Sun . Instead the change in the seismic wave velocity is caused by a metamorphic transition in the granite rock. Over two decades, they managed to dig more than 7.5 miles down into the Earth. [13] In 2008 the Russian InfoCentre announced that the borehole was to be destroyed. © 2020 World Meteorological Organization (WMO), 2020 Antarctic ozone hole is large and deep, Director of Copernicus Atmosphere Monitoring Service at ECMWF. [18], "Kola Superdeep" redirects here. Former Marine from A&E's '60 Days In' kills himself after online post. In 1992 an international geophysical experiment obtained a reflection seismic crustal cross-section through the well.
Another blue hole in the seas, similar to that of the giant blue hole. For the next 24 years, they drilled on and off into the Earth’s crust. [11] The experiment was documented in a video recorded by Professor David Smythe,[12] which shows the drilling deck in action during an attempt to recover a tool dropped down the hole.

The Kola-92 working group consisted of researchers from the Universities of Glasgow and Edinburgh in Scotland, the University of Wyoming in the United States and the University of Bergen in Norway as well as several Russian earth science research institutions. This water, unlike surface water, must have come from deep-crust minerals and had been unable to reach the surface because of a layer of impermeable rock. 105,790, This story has been shared 100,033 times.

[1], Another unexpected discovery was a large quantity of hydrogen gas. Instead the change in the seismic wave velocity is caused by a metamorphic transition in the granite rock. For that reason, Soviet scientists in the 1970s decided to probe deeper than humanity has ever done before. [4], This idle period may have contributed to a breakdown after drilling resumed; on 27 September 1984, after drilling to 12,066 m (39,587 ft), a 5,000 m (16,000 ft) section of the drill string twisted off and was left in the hole. The deepest hole is literally ground-breaking at 2.8 miles deep. They test a lot of top secret stuff underground out there. As soon as we get a good weather window, we will find out what is at the bottom!UPDATE: We have video of the bottom of the hole (at least we think it might be the bottom) here: http://www.youtube.com/watch?v=fT4o5Tn84Qo [4], The hole reached 12,262 m (40,230 ft) in 1989. The project to drill into the Earth’s surface began near Murmansk in the 1970s, when Soviet scientists wanted to learn more about the Earth’s crust. The Montreal Protocol bans emissions of ozone depleting chemicals. This water, unlike surface water, must have come from deep-crust minerals and had been unable to reach the surface because of a layer of impermeable rock. The deepest, SG-3, reached 12,262 metres (40,230 ft; 7.619 mi) in 1989 and is the deepest artificial point on Earth. [14] The site is still visited by curious sightseers, who have reported that the structure over the borehole has been partially destroyed or removed.[7].


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