· Supervises and takes part in the order, cleanliness and housekeeping at rig site. · Maintains the drilling tools and equipment. · Supervises and helps the drilling crew to prepare equipment. · Before rig move should order and supervise the loading of the rig equipment under the orders of the Tool Pusher and Driller. · Supervises the correct storage of drilling equipment. · Responsible for replacing the Derrickman at any time at the request of the Driller. · Inspects the derrick/mast and equipment, records the inspections, reports and corrects the defects after approval by the Tool Pusher. · Supervises the good maintenance of all the sheaves in the derrick/mast. · Checks that the drill string is in good condition. · Supervises the handling on the rig floor and specially when picking up or laying down drilling equipment. · Can replace the Driller at the brake when pulling out, running into the casing or when drilling a non-productive zone. · Is familiar with the client’s rules to control a kick and to apply them under the orders of the Driller. · Performs any job requested by the Driller or the Tool Pusher as long as this job is within his competence.

Ahmed Aboali, petroleum engineering from the British University in Egypt with 6 years experience in oil fields including 3 years as an Assistant Driller. currently, working as an Assistant driller at ADNOC in the UAE