The challenge
The unit's previous two turnarounds had both overrun. The work list had grown by accumulation - each event inheriting the last one's scope plus additions - and late scope growth was consistently pushing the critical path.
Our approach
We rebuilt the scope from inspection and reliability data rather than from the previous work list, risk-ranked every item, and removed work that could not justify a place on the critical path. Scope was frozen at an agreed milestone, with any later addition requiring an explicit decision on the schedule impact it carried.
The outcome
The unit returned to service within the planned window, with a documented deferred-work register carried forward to the next event and a close-out basis for planning it.
More case studies
Drilling
Eight-well pad programme, Permian Basin
A walking-rig pad programme where the objective was repeatability - making the eighth well look like the first, only faster.
Read more
Well Servicing
Field-wide workover and production recovery
A mature field where repeat rod failures were being treated as a maintenance cost rather than as a solvable engineering problem.
Read more