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Supporting safe decommissioning: Repsol's case study in Spain

Discover how preparedness planning, contingency exercises and coordinated response arrangements supported a nearshore decommissioning project in Spain.
 
Explore the lessons and operational approaches applied throughout the project.
  • 05 August, 2026
  • 2 min read
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As offshore infrastructure reaches the end of its lifecycle, asset owners are increasingly focused on ensuring decommissioning activities are carried out safely, efficiently, with a strong focus on responsible operations, preparedness and operational integrity.

In Spain, a nearshore well decommissioning project prompted a proactive approach centred on preparedness and coordinated response capability.

Although the wells contained only negligible volumes of oil, their proximity to the shoreline required enhanced planning, coordination and preparedness, consistent with Repsol's standards for responsible offshore operations.

To support this approach a comprehensive preparedness and response framework was developed, supported by OSRL's technical expertise and operational capability.

What the project set out to achieve

The decommissioning campaign focused on:

  • Ensuring a safe and environmentally sound operation
  • Enhancing preparedness through contingency planning and exercises
  • Strengthening integrated response capability across Tier 1, Tier 2, and Tier 3 resources
  • Engaging leadership through immersive crisis management activities

How OSRL supported the operation

To meet the unique challenges of a nearshore decommissioning environment, OSRL and project teams implemented:

  • Sensitivity mapping and risk assessments to inform response planning
  • Tactical Response Plans and contingency exercises, including senior leadership drills
  • Deployment of equipment and trained personnel, maintaining constant operational readiness
  • Seamless integration with project teams to enable rapid transition from planning to response

The Casablanca offshore field, located off the coast of Tarragona in Spain, was the focus of Repsol's decommissioning programme supported by OSRL's preparedness and response expertise.

Outcomes and insights

Initial and preparatory activities were carried out in line with the defined plans, confirming the robustness of the preparedness framework and the value of early and continuous planning.

The approach provides relevant reference points for decommissioning activities in sensitive operating contexts, reinforcing the importance of leadership engagement and integrated response arrangements.

Explore the methodologies, planning tools, and operational lessons that shaped this successful decommissioning programme.

Personnel gather around response equipment during a preparedness activity supporting Repsol's offshore decommissioning operations. Training, planning and operational readiness formed key elements of the project approach.

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