A professional who controls conveyors and blending equipment to mix materials according to specification for use in cementing oil and gas wells. Respnsibilities include:

• Operates electric-powered winch to spot railroad cars over underground hoppers.
• Breaks seal and opens bottom-dump doors on car with prybar to unload cement and other materials in hopper.
• Presses button to start conveyor which transfers materials to storage bins.
• Pulls levers and presses switches to start and stop conveyors and blending equipment and to open and close discharge gates on storage bins.
• Empties sacks of additive chemicals into blender hoppers to prepare dry cement mixtures, following formulas.
• Prepares delivery tickets (call sheets) and weighs trucks and materials as loaded.
• Records quantities of materials received and issued on inventory control records.
• Estimates materials in bulk storage bins periodically to verify inventory records.
• Requisitions materials to replenish stocks.