Rig Equipment Inspection Checklist

A rig is a collection of machines, structures and systems that interact under load, pressure and weather. The inspection checklist is the tool that keeps each item visible before it becomes a failure. The checklist should be short enough to use daily, detailed enough to catch early damage, and structured so the inspector can see what changed since the last check. A checklist that is too long gets skipped. A checklist that is too vague catches nothing. The checklist should start with the hoisting system: drawworks, crown, traveling block, wire rope, deadline, cathead, drum indicators and the rig floor brake. Each item has a simple pass-fail question with a tolerance or a discard limit. Wire rope discard criteria, brake band clearance and drum indicator calibration should be written on the checklist so the inspector does not have to remember them. The hoisting system carries the load that can kill people if it is wrong, so it deserves the first page. The rotary and top drive system follows: rotary drive, kelly, swivel, kelly valve, torque indicator, circulating head and related guards. These items control rotation and fluid pressure. The checklist should ask for bearing play, oil condition, guard condition and pressure test currency. A kelly valve that leaks during a connection is an item that should have been caught days earlier. A rotary drive that runs rough should trigger a bearing inspection before the next heavy drilling section. The mud system, BOP and ground equipment complete the review. Mud pumps, pulsation dampeners, shale shakers, mud-gas separators, BOP controls, accumulator pressure and choke manifold all support well control and hole cleaning. The checklist should confirm function, pressure test dates, lockout tags and housekeeping. The final section should ask about rig floor housekeeping, lighting, signage, emergency exits and PPE staging. Those soft items are usually the first things to disappear when a crew is busy, and they are usually the first things an inspector notices. An inspection checklist that is posted, completed and filed is the backbone of preventive discipline on the rig floor. ← Back to rigs.work