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The job duties of roughnecks or unskilled workers in the oil and gas industry are: Manage drilling equipment, such as assembly, disassembly, and ensuring its function Connecting and disconnecting drill pipe Added new pipe pieces Removing objects such as stone cores from pipes Sanding and removing mud deposits Carry out routine inspections and maintenance on drilling equipment Mixing mud and chemicals Help other crew members The duties of a floorman on an oil and gas drilling rig are: Assist drillers in drilling operations by performing manual tasks Making pipe connections Monitor mixing of drilling fluids Carry out equipment maintenance at the drilling location, such as maintaining, cleaning and handling equipment that has been used Lifts, moves and explains drilling pipe Monitor the flow of materials such as drilling mud Assist and receive orders from the driller regarding operations Prepare the drill pipe, insert the drill pipe into the well, remove the drill pipe, and place it in the place provided Assist in lowering the fluctuating pipe series (casing) and cementing Carrying out well completion operations

1. Attended training for the competency certificate of technical operator for the crude distilling unit in oil refining. 2. Supervision and guidance on occupational health and safety