Gun drilling is a process for producing deep holes—with depth-to-diameter ratios greater than 10:1—in metals and alloys, and is used across a number of industries, from the manufacture of firearms and ...
Directional drilling has been an integral part of the oil and gas industry since the 1920s. While the technology has improved over the years, the concept of directional drilling remains the same: ...
$$\left\{ \begin{gathered} F_{{\text{B}}}^{{\text{t}}}=M_{{\text{B}}}^{{}} \cdot \mathop {U_{{\text{B}}}^{{\text{t}}}}\limits^{{\cdot \cdot }} +C_{{\text{B ...
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