Geologists of the Oktyabrsky mine of the Polar branch of Norilsk Nickel started using an optical televiewer at one of the wells to help them collect data on the state of the near-well space at a depth of up to 1800 meters.
Optical scanning technology makes it possible to detect signs of geological disturbances, such as the opening of cracks and breakdowns, a violation of the structure of a mountain range or a change in the composition of rocks at the well drilling site.
In addition, the optical viewer also helps geologists to monitor the drilling processes and determine the optimal parameters for ore extraction. Thanks to detailed images of underground formations, geologists can create accurate rock models, which in turn are used to plan the efficient and safe development of mines in the Polar Branch.
"The optical televiewer is an addition to the acoustic one, and has been successfully used in production for many years. The acoustic device works thanks to ultrasonic pulses. Its disadvantage is that it can only be used to conduct research in wells filled with drilling fluid. Whereas an optical televiewer can work both in clear, transparent water and in the air. The joint use of acoustic and optical cameras will allow us to research almost the entire wellbore from top to bottom," said Alexey Afanasyev, a leading geophysicist at the project office for the implementation of promising projects in the Trans–Baikal Territory of Norilsk Nickel Technical Services LLC.
The study of the near-well space using an optical televiewer is important for the geologists of Norilsk Nickel. The new equipment makes it possible to improve the processes of exploration and development of mines, clarify the structure of deposits and prevent possible geological risks, which, in turn, contributes to the mine life and ensures the sustainable development of the company, the press service of Norilsk Nickel reported.
Alex Shishlo for Rough&Polished
