| Job Title |
Rotary Driller |
| Job Description |
Operates Gasoline, Diesel, Electric, Or Steam Draw Works To
Drill Oil Or Gas Wells: Observes Pressure Gauge And Moves
Throttles And Levers To Control Speed Of Rotary Table Which
Rotates String Of Tools In Borehole, And To Regulate Pressure Of
Tools At Bottom Of Borehole. Connects Sections Of Drill Pipe,
Using Handtools And Powered Wrenches And Tongs. Selects And
Changes Drill Bits According To Nature Of Strata, Using
Handtools. Pushes Levers And Brake Pedals To Control Draw Works
Which Lowers And Raises Drill Pipe And Casing Into And Out Of
Well. Examines Operation Of Slush Pumps To Ensure Circulation
And Consistency Of Mud (drilling Fluid) In Well. Examines
Drillings Or Core Samples From Bottom Of Well To Determine
Nature Of Strata. Fishes For And Recovers Lost Or Broken Bits,
Casing And Drill Pipes From Well, Using Special Tools Attached
To End Of Drill Pipe Or Cable. Keeps Record Of Footage Drilled,
Location And Nature Of Strata Penetrated, And Materials Used.
Caps Well Or Turns Valves To Regulate Outflow Of Oil From Well.
Repairs Or Replaces Defective Parts Of Machinery, Using
Handtools. May Lower And Explode Charge In Borehole To Start
Flow Of Oil From Well. May Specialize In Drilling Underwater
Wells From Barge-mounted Derricks Or Drilling Platforms And Be
Designated Rotary Driller, Marine Operations (petrol. & Gas).
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