Master shaker module for drilling rig

A method of assembling a master shaker module, the method comprising:

• coupling an upper master skid structurally configured to support a first plurality of mud circulation system components over and to a lower master skid structurally configured to support a second plurality of mud circulation system components;
• fluidically connecting a first pipe of the upper master skid to a second pipe of the lower master skid;
• fluidically connecting a first storage structure of the upper master skid to a mud cleaner accommodated on the lower master skid, the first storage structure being configured to receive a fluid that exits from the first plurality of mud circulation system components;
• and
• fluidically connecting a first debris moving system of the upper master skid to a chute that vertically extends along the lower master skid, the first debris moving system being structurally configured to move debris that exits from the first plurality of mud circulation system components;
• the first pipe is arranged to fluidly communicate with the first plurality of mud circulation system components;
• and
• the second pipe is arranged to fluidly communicate with the second plurality of mud circulation system components.

A method of cleaning mud from a downhole operation, comprising:

• flowing a fluid through a first pipe to a first plurality of mud circulation system components accommodated on an upper master skid;
• flowing the fluid through a second pipe to a second plurality of mud circulation system components accommodated on a lower master skid that is located below the upper master skid;
• determining whether operation of both the first and second pluralities of mud circulation system components is required to clean the fluid;
• and
• closing a valve to prevent the flow of the fluid through one of the first and second pipes after determining that operation of both the first and second pluralities of mud circulation system components is not required.