What a pre-shut inspection actually covers.
A shutdown lives or dies weeks before the first tool comes out. The pre-shut inspection is where the surprises get found while they are still cheap — and where the parts list, the labour plan and the schedule stop being guesses.
Why pre-shuts exist
Every shut has a date it is supposed to hand the rig back. Miss it and the cost is not the labour — it is the metres the rig did not drill. Most blowouts trace back to the same thing: something was discovered mid-shut that should have been discovered a month earlier. A part with a long lead time. A wear item in worse shape than the hours suggested. A job that needed more hands than the plan allowed for.
The pre-shut inspection exists to pull those discoveries forward, while there is still time to order the part, book the trade and adjust the plan.
What gets looked at
The detail varies rig to rig, but the shape is consistent: the machine gets gone over end to end while it is still working, with what is found rated honestly against what the coming shut window can actually absorb. The output is not a tick-and-flick sheet. It is a report a planner can build a schedule from: what needs doing, what it needs in parts and people, and what can safely wait for the next window.
What the report feeds
Our pre-shut reporting is built for the people doing the planning — detailed enough to drop straight into scheduling and Gantt charting, so the shut plan is built on what the rig actually needs rather than what the calendar hopes. Parts get ordered against lead times instead of luck, labour gets booked against real scope, and the shut starts with a plan everyone has already seen.
That is the whole game: shutdowns run on their dates when nothing in them is a surprise.