What you will learn
- What a turnaround is, and why it dominates refinery maintenance
- How scope is built, challenged and frozen
- How schedules, resources and costs are planned together
- How work is tracked during the shutdown, when plans change daily
- Where turnaround planning ends and routine maintenance begins
What this project is
A turnaround, or shutdown, is a planned period when a refinery unit, or the whole refinery, stops production for major maintenance, inspection and modification that cannot be done while running. Turnarounds involve thousands of jobs, hundreds of contractors, and tight schedules measured in days. A planning system manages that complexity: the scope of work, the schedule, the resources, the materials and the costs, from planning months ahead through execution and close-out.
Scope control is the defining challenge. Every department wants its jobs included, and scope grows until the schedule becomes impossible. The system should support scope challenge: each job justified, estimated and prioritised, with a freeze date after which new jobs need approval at a high level. Without that discipline, the turnaround overruns, and the cost of lost production dwarfs any maintenance saving. During execution, the plan changes daily as inspections reveal unexpected work, and the system must handle that change without losing control of the schedule.
Core features
- Scope management: job lists, justification, estimates and freeze control
- Schedule planning with critical path, dependencies and resource levelling
- Resource planning for internal staff, contractors, cranes and specialist equipment
- Material and parts planning, with delivery tracking against the schedule
- Cost tracking against budget, by job, unit and category
- Execution tracking: progress, changes, delays and daily reporting during the shutdown
How it is built
- Build the scope process first: how jobs are proposed, justified and frozen
- Add schedule planning with critical path and dependencies, then resource planning
- Add material planning and cost tracking, then execution tracking for the shutdown period
- Test the schedule with a simulated turnaround, checking critical path and resource conflicts
- Pilot on one unit turnaround, comparing planned versus actual schedule and cost
Technology considerations
Schedule logic is the technical core. Thousands of jobs with dependencies, shared resources and a fixed shutdown window require critical path analysis that is honest about constraints. A schedule that assumes unlimited cranes or contractors will fail on day one. The system should model resource limits and show the critical path plainly, so managers can see which jobs drive the shutdown duration and what happens if they slip. Scope change during execution needs a controlled process: new jobs assessed for schedule and cost impact before approval, not added informally.
Material readiness is a common failure. A job that cannot start because parts have not arrived delays everything downstream. The system should track material delivery against the schedule, flagging at-risk jobs weeks ahead, not on the morning they are due to start. Cost tracking during execution needs the same discipline: actual costs recorded against jobs as they are incurred, so budget overruns are visible while corrective action is still possible.
For the first version, plan one unit's turnaround: scope with freeze control, critical path schedule with resource limits, material delivery tracking, and daily execution reporting. Turnaround managers judge the system on whether the schedule survives contact with reality: materials on time, resources not double-booked, and scope changes assessed before approval. A system that does that for one unit is the template for the next turnaround.
Challenges to plan for
- Scope growth after the freeze date, pushing the schedule beyond the shutdown window
- Materials that arrive late, delaying jobs on the critical path
- Resource conflicts, such as two jobs needing the same crane at the same time
- Unexpected inspection findings that add major work mid-shutdown
Who it is for, and its limits
This suits a refinery operator, a petrochemical plant or any facility with major planned shutdowns. It fits turnarounds involving many jobs, contractors and a tight schedule. It does not fit routine maintenance or small shutdowns with a handful of jobs, and it is not a project management tool in general: it is built for the specific pressures of a turnaround.
A planning system does not shorten a turnaround by itself. Shortening comes from scope discipline, schedule honesty and material readiness; the system makes those disciplines manageable at turnaround scale. Costs vary with turnaround size and job count, so confirm with a quote after the scope process is defined.
Frequently asked questions
What is a turnaround?
A planned shutdown for major maintenance, inspection and modification that cannot be done while the plant is running. Turnarounds are scheduled months or years ahead and involve many jobs and contractors.
What is scope freeze?
The date after which the job list is fixed, and new jobs need high-level approval. Freeze control prevents scope growth from making the schedule impossible.
What is the critical path?
The sequence of dependent jobs that determines the shutdown duration. Jobs on the critical path drive the finish date; delays to them delay the whole turnaround.
How are materials planned?
Against the schedule: each job's parts tracked from order to delivery, with at-risk jobs flagged when delivery dates threaten the schedule.
What happens when inspections find unexpected work?
The new work is assessed for schedule and cost impact, approved under the change process, and added to the plan with its dependencies. Uncontrolled addition of work is what causes overruns.