Methodology and system for utilizing rig mud pump assembly

A system for use in a well, comprising:

• a rig located at a wellsite;
• a mud pump assembly having a plurality of mud pumps, the mud pump assembly being positioned on the rig;
• a cement mixer to mix a cementing fluid that is used during a cementing operation with respect to the well;
• a mud supply to provide mud during a mud pumping operation, the cement mixer and the mud supply both being in fluid communication with the mud pumps such that the mud pumps are used to perform the mud pumping operation by pumping mud through the mud pumps to a mud outlet of the mud pump assembly and the cementing operation by pumping the cementing fluid through the mud pumps to a cement outlet of the mud pump assembly;
• and
• a flushing fluid supply to provide a flushing fluid to a flush out line of a suction manifold of the mud pump assembly between the mud pumping operation and the cementing operation to flush the mud, the cementing fluid, or both through a cleanout port of the mud pump assembly.

A method for use at a wellsite, the method comprising:

• providing a rig with a mud pump assembly having at least one mud pump;
• using the at least one mud pump to perform a mud pumping operation by pumping mud from a mud supply through the at least one mud pump to a mud outlet of the mud pump assembly and a cementing operation by pumping a cementing fluid from a cement supply through the at least one mud pump to a cement outlet of the mud pump assembly without having separate cementing operation pumps at the wellsite;
• and
• flushing the mud through a cleanout port of the mud pump assembly by providing a flushing fluid through a flush out line of a suction manifold of the mud pump assembly after the mud pumping operation and prior to the cementing operation.