Our core service areas


SIL and Reliability

  • SIS Lifecycle Management
  • Functional Safety Management Plan (FSMP)
  • SIL Assessment and Allocation
  • Layers of Protection Analysis (LOPA)
  • Safety Requirements Specification (SRS)
  • SIL Verification Assessment 
  • Functional Safety Assessment (FSA)
  • Failure Mode and Effects Analysis (FMEA)
  • Fault Tree Modelling
  • Periodic Reliability Assessment (PRA)
  • Reliability, Availability and Maintainability (RAM)

technical safety and risk

  • Technical Safety Engineering
  • Escape, Evacuatoin and Rescue Analysis
  • Fire and Explosion Strategy (FES)
  • Safety Case
  • Quantitative Risk Assessments (QRA)
  • Qualitative Risk Analysis
  • Hazard Identification (HAZID)
  • Consequence Modelling 
  • Firewater Optimization Studies
  • Process Safety Studies
  • Hazard and Operability Studies
  • Safe Operations (SAFOP)
  • Simultaneous Operations (SIMOPS)

barrier and integrity management

  • Barrier analysis
  • Development of Barrier Strategy
  • Implementation of Barrier Management Systems
  • Barrier Management Audits
  • Integrated (Barrier) Design Reviews
  • Bow-tie Analysis
  • Safety (and Environmental) Critical Elements
  • Performance standards
  • Optimziation of test intervals
  • Risk-based Maintenance

Highly specialized risk and safety advisory

Since its foundation, ORS has been involved in hundreds of projects around the world. Our clients typically include asset-owners, engineering- and construction companies or system suppliers. We perform specialist studies, independent 3rd party verifications or contract subject matter experts. Our engagement varies from providing specific studies to delivering full-package risk- and safety services for complex industrial development projects. Few examples are:

  • Delivery of full-package risk- and safety services for an offshore field development project in Mediterranean Sea. (including deliverables related to HAZID, HAZOP, SIL, dropped object studies, EERA, dispersion studies, RAM analysis, active/passive fire protection studies, ENVID etc.)
  • Barrier- and Integrity Management support for numerous subsea tie-back projects, primarily in Norwegian Continental Shelf (NCS). 
  • Long-term production assurance/RAM specialist support for a regional gas transportation network operator  
  • Functional Safety and SIL Support for multiple asset / facility development projects in Norway, Denmark, Sweden, USA, Australia, Angola, Mexico, Singapore etc.
  • Contracting Technical Safety- and HSE resources for development projects- and operational support in multiple industries (petrochemicals, petroleum, offshore fish-farming, carbon-capture)
  • Facilitation of specialist workshops (HAZID, HAZOP, FMECA, WHAT-IF, SAFOP, SIMOPS etc.) globally
  • Extensive risk- and safety studies involving design- and operations of subsea blowout preventers (BOP)