Higher circulating pressures result in increased wear on mud pump parts, subsequently causing rig downtime for pump maintenance. The paper presents the field experience gained with mounting high-frequency mud pressure transducers and analyzing the pressure signatures of Triplex Mud Pumps to identify pump wear in time for running routine maintenance and service. By comparison with recorded drilling data, every operating condition can be allocated to pressure curves. The characteristics of typical pump wear as expressed in these signatures are discussed together with suggestions how to automate the monitoring system. In addition, mud pumps have been fitted with vibration sensors for supplemental information.

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