Combining-Downhole-Axial-and-Surface-Oscillation-Tools-What-Are-the-Consequences-on-Tool-Face-Control-Performance PDF 3
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When drilling in sliding mode, axial oscillation tools (AOT) and surface oscillation tools (SOT) are two possible solutions that are used in the industry to overcome the friction<br>forces, especially in unconventional well trajectories with a long lateral section. The AOT is assembled in the drillstring and run in hole such that it is generally placed in the<br>middle of the lateral section. It is actuated by the mud flow to produce high-frequency axial vibrations. As for the SOT, it is placed at surface and produces low-frequency<br>torsional oscillations in the drillstring by alternating the rotatio
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Combining-Downhole-Axial-and-Surface-Oscillation-Tools-What-Are-the-Consequences-on-Tool-Face-Control-Performance PDF 3
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