A Review of the Evaluation, Control, and Application Technologies for Drill String Vibrations and Shocks in Oil and Gas Well

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sv/volume-2016/7418635/figures/7418635.fig.0025a.svgz" name="7418635.fig.0025a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Axial hammer</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2016/7418635/figures/7418635.fig.0025b.svgz" name="7418635.fig.0025b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Torsional hammer</td></tr></table>

<div>The structure and working principle of typical and latest hammer.</div>

Shock and Vibration

fig25

Figure 25

Figure 25: A Review of the Evaluation, Control, and Application Technologies for Drill String Vibrations and Shocks in Oil and Gas Well 