Maintain and perform safety inspections on equipment and tools.
Operate controls that raise derricks or level rigs.
Listen to engines, rotary chains, or other equipment to detect faulty operations or unusual well conditions.
Prepare reports of services rendered, tools used, or time required, for billing purposes.
Install pressure-control devices onto wellheads.
Confer with others to gather information regarding pipe or tool sizes or borehole conditions in wells.
Operate pumps that circulate water, oil, or other fluids through wells to remove sand or other materials obstructing the free flow of oil.
Drive truck-mounted units to well sites.
Interpret instrument readings to ascertain the depth of obstruction.
Direct drilling crews performing activities such as assembling and connecting pipe, applying weights to drill pipes, or drilling around lodged obstacles.