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"Diamonds of Anabar" and a young scientist from the NEFU produced a unique projectile for the study of diamondiferous rocks
Thanks to the cooperation between the diamond mining company and the university, a one-of-a-kind auger-core drill was manufactured so far. He fundamentally changes the way of studying placer deposits of diamonds.
Thanks to the cooperation between the diamond mining company and the university, a one-of-a-kind auger-core drill has been manufactured so far. It fundamentally changes the way of studying alluvial diamond deposits. “We call the invention the“ Auger-core drill string. ”Because when it is developed, a core pipe and an auger are combined. The auger is needed to transport the destroyed rock to the accumulator. The core tube acts as a storage device. During drilling, the bit destroys the bottom of the hole and the auger is transported upward, "says Nikolai Timofeev, a young scientist, senior lecturer at the Department of Technology and Technique of Exploration of Mineral Deposits, Geological Prospecting Faculty of NEFU. “In our conditions, in the exploration of alluvial deposits, hole-boring works are carried out manually. That is, drilling with shells is not provided. The holes are passed by an explosive method - first an explosion is made, then a person is lowered into the face of the mine and manually takes samples. This method of rock exploration is quite dangerous and costly in terms of rational use of time and human resources. With the help of our projectile, you can conduct research much more efficiently and safer. No explosions are needed. And the process is much faster in time. In addition, geologists I am interested in as much rock as possible for research. After all, the more samples are taken, the better the sampling result. With the help of our projectile, a sufficient amount of rock is raised to the surface, which allows geologists to effectively and accurately determine the content of the useful component. " Most of the republic is in permafrost conditions, so the temperature factor has a negative effect on the process of construction of exploration wells. During drilling, the ice contained in the frozen rocks melts,
Drinking into the water. The destroyed rock, rising along the auger, freezes to the tool. "To overcome this factor, we have provided a hatch in the core tube, so that the adhered rock can be easily removed from the projectile. The production version of the projectile is 750 mm in diameter and two meters in length. It is located at the Mayat section of Almazy Anabara. "Where experimental tests are carried out," says Nikolay. The core auger drill is a new invention. The novelty of the design of our drill is confirmed by a patent of the Russian Federation. At the same time, the projectile needs improvement and elimination of shortcomings. "Production experimental tests will show which details need to be finalized and improved. We have created an initiative group consisting of teachers and students of our department. We will jointly analyze the action of the shell and, in general, study the process of drilling boreholes in permafrost conditions", - shares the young scientist. Nikolay Timofeev was born in the Amga region, in the village of Bolugur, in 1987. After graduating from school, he entered the NEFU, the geological prospecting faculty, the department of technology, engineering and exploration of mineral deposits. In 2009, after graduating from the university, he entered graduate school. And he began to study the problem of drilling large-diameter wells in permafrost conditions already under the scientific guidance of Revo Skryabin, a professor with many years of experience in drilling wells. Participated in various competitions, conferences. In 2014, Nikolai took part in the republican competition "I am an engineer" for the prizes of a member of the Federation Council Vyacheslav Shtyrov, where he took second place. “I had very serious rivals. They had good ideas and developments, so the competition was serious and tense. In general, I find competitions among engineers very useful and stimulating for further achievements,” Timofeev recalls.