The problematic issues concerning modern well drilling technologies

Well drilling is the leading technological cycle that makes it possible to carry out
prospecting and mining operations within different mineral deposits.
Numerous operations as for construction of different industrial and civil purposes are
impossible without well drilling technologies.
It should be noted that wells are constructed in the rocks differing with their mechanical
properties; in addition, those wells vary greatly in their depths. These are the reasons why the
construction periods for the majority of wells are rather long-term with the resulting
significant deceleration in completing the current operations