Job Description:

• 1) Tends machine that mixes mud for use in drilling oil and gas wells: Weighs sand, clay, and other dry materials on scale and dumps materials into hopper of mixing machine.

• 2) Turns water valve and opens hopper gate to admit specified quantity of water and dry mix into mixing chamber of machine.

• 3) Tests mud sample for viscosity, using viscometer.

• 4) Starts pumps that force mud to drilling wells.

• 5) Lubricates, adjusts, and repairs machinery, using handtools and grease gun.

• 6) Replaces defective parts of mud pumps and hoisting equipment, using handtools and following repair orders.