Перегляд Volume 12, Issue 3 по назві
Зараз показуються 13-14 з 14
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Use of the energy of parametric oscillations to improve drilling indices
(National Mining University, 2018-09-30)Purpose. Increase of the efficiency of using energy of parametric oscillations within the assembly of drilling string bottom by means of solving nonlinear-parametric equations of a “bit – drive motor – drilled-out rock” ... -
Ways to improve safety of a pumping-circulatory system of a drilling rig
(National Mining University, 2018-09-30)Purpose. To modernize a pumping-circulatory system of a drilling rig in order to improve the environmental safety data, reliability, and convenience during oil well construction. Methods. Methods of system analysis of the ...