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Case Studies

Armada Kraken FPSO – Revalidation HAZOP & SIL Assessment

November 13, 2025
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About the Asset

The Armada Kraken FPSO is a turret-moored floating production, storage, and offloading vessel located in the East Shetland Basin, UK North Sea, operating in approximately 120 meters of water depth.

The FPSO’s topsides host oil processing, gas compression, water treatment, and utilities facilities, with a design capacity of up to 80,000 barrels per day.

Katoni’s Role

Katoni was engaged to deliver facilitation and scribing support for the revalidation of HAZOP and SIL assessments across the entire topside and turret systems of the Kraken FPSO.

Our team led structured workshops to review process deviations, consequences, and safeguards, ensuring full alignment with current operational and regulatory requirements.

Pre-workshop preparation included aligning scenario documentation, risk parameters, and safeguard data to support systematic SIL assessment. Safety Instrumented Systems were reviewed using the risk graph methodology, evaluating the required Safety and Environmental Integrity Levels (SIL/EILs) for each function.

Understanding the Client’s Needs & Delivery

The client required revalidation of existing HAZOP and SIL studies in accordance with IEC 61511 and Bumi Armada’s internal process safety standards.

Katoni ensured:

  • Structured and disciplined workshop facilitation
  • Consistent SIL assessment methodology
  • Transparent, traceable outcomes linked to operational realities

Key technical activities included:

  • Node-by-node HAZOP review using HAZOP Manager Software
  • Identification of safeguards and gap analysis
  • SIL reassessment of over 100 Safety Instrumented Functions (SIFs)
  • Alignment of recommendations with current system configurations

The Katoni Way

Katoni’s structured delivery approach combined thorough preparation, disciplined facilitation, and clear reporting, ensuring workshops ran efficiently and focused on meaningful outcomes.

Facilitators maintained momentum and structure, while scribes ensured high-quality, auditable documentation.

The result was a smooth, transparent process - giving the client confidence that HAZOP findings linked seamlessly into SIL decisions and future scopes.

Our methodical, proactive approach delivered not only compliance but also added value through clarity, consistency, and actionable insight — reinforcing trust and leading to further follow-on work.

Project Highlights

  • 6-week HAZOP revalidation covering Topsides, Turret, Marine, and Maintenance Systems
  • 1-week SIL Assessment, reviewing over 100 trips derived from the HAZOP
  • Full alignment with IEC 61511 and internal process safety standards
  • Traceable, high-quality reports enabling confident operational decision-making