Fedorov, Boris, Boranbay Ratov, and Aizada Sharauova. 2017. “Development of the Model of Petroleum Well Boreability With PDC Bore Bits for Uzen Oilfield (the Republic of Kazakhstan)”. Eastern-European Journal of Enterprise Technologies 3 (1 (87):16-22. https://doi.org/10.15587/1729-4061.2017.99032.