Urgent offshore oil separator cleaning after unexpected sludge was discovered – proposal adjusted overnight, equipment and crew mobilised within 24 hours, and the separator cleaned without impacting the operator’s production schedule.
Sector: Offshore oil & gas – production
Location: Cormorant Alpha, North Sea
Client: Major North Sea operator (anonymised)
Services: Non-intrusive vessel cleaning, HP jetting, diesel vacuum transfer, water treatment and reuse, compliant waste management
Overview
A major offshore operator required urgent cleaning of an oil separator on one of its installations. The task involved:
- Assessing the vessel’s condition
- Determining the volume and type of sludge present
- Executing the cleaning operation swiftly and safely
The goal was simple: remove the sludge before it affected operations, minimising downtime and protecting production.
The Challenge
The vessel was opened and found to contain a significant amount of sludge that had not been anticipated. The operator needed:
- A rapid response to an unexpected situation
- A partner who could re-engineer the original scope on the fly
- Cleaning to be completed without causing operational delays
Timeline & Response
19 June – Sureclean received an email request for support and began preparing a Cost Time Resource (CTR) proposal, pending inspection.
20 June – Once the separator was opened and the true condition understood, the client confirmed that substantial sludge was present.
Sureclean amended the proposal immediately to reflect the increased scope and additional cleaning requirements.
21 June – The updated proposal was finalised and submitted first thing in the morning.
Within 24 hours of approval, Sureclean had personnel and equipment names confirmed and organised for mobilisation.
Solution
Sureclean’s approach drew on its robust operational capability and experienced project team:
- By 24 June, all required personnel were confirmed to the client.
- Cleaning equipment was organised, tested and consolidated within 24 hours on 25 June, ready for deployment.
- On 26 June, the spread was loaded onto the vessel and sailed to the offshore installation, allowing cleaning operations to start without schedule impact.
Key ingredients were:
- Rapid proposal adjustment once the true condition was known
- Tight coordination between engineering, logistics and offshore teams
- Comprehensive execution from mobilisation through to completion
Results
The campaign delivered exactly what the operator needed:
- No production or schedule delays – the separator was cleaned before sludge could impact operations.
- Equipment and crew mobilised inside 24 hours, proving Sureclean’s ability to respond at speed.
- Scope and budget realigned quickly when additional sludge was discovered, avoiding re-tendering or administrative delay.
- Seamless communication between client and Sureclean teams, giving the operator confidence that the issue was under control.
Key takeaways:
- Speed: Rapid mobilisation of people and plant.
- Flexibility: Swift adjustment of the initial proposal to match real-world conditions.
- Efficiency: Smooth coordination and execution of the cleaning operation end to end.
Why Choose Sureclean?
This project underlines Sureclean’s strength as a rapid-response industrial cleaning partner:
- We combine fast decision-making with a ready-to-mobilise equipment fleet.
- We treat changing conditions as part of the job, re-engineering scopes without drama.
- Our focus on client communication, safety and operational excellence helps operators maintain production schedules with minimal disruption.
For urgent separator cleaning and other time-critical industrial cleaning scopes, Sureclean is the partner that keeps assets clean and operations moving.
