March 2018

Fluid Flow and Rotating Equipment

Preventing wire wooling journal bearing failure

This work details the operation of a 21,000-HP, five-stage barrel pump utilized for seawater injection service.

Brashler, K., Saudi Aramco

This work details the operation of a 21,000-HP, five-stage barrel pump utilized for seawater injection service. This pump is driven by a gas turbine and has a hydraulic rating of 12 Mgal/min at 5,775 ft total dynamic head (TDH). FIG. 1 shows the cross-sectional drawing of the pump. FIG. 1. Cross-sectional drawing of the seawater injection pump.   The pump was in operation for approximately 1 yr before experiencing a non-drive end (NDE) radial bearing resistance temperature detector (RTD) alarm, and a subsequent increase in radial vibration amplitude. The NDE journal bearing was inspected in the field and was found to have significant damage to

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