Review of high temperature geothermal drilling and
Due to the geological conditions of thermal storage such as different lithology burial depth and output fluid properties compared to oil and gas wells the drilling and completion conditions of geothermal wells may be more demanding Southon 2005 Hole 2008 1 The high temperature and large change in burial depth lead to high
Dynamic response and failure analysis of bearing under the
The mechanism of the abnormal dynamic response of bearings determines that internal excitation such as bearing surface defects [5] [6] and external excitation such as operating conditions [7] have a significant impact on bearing dynamic response The dynamic response can directly reflect the rotational accuracy of the shaft system and support stiffness