The Quantitative Risk Assessment (QRA) was carried out for the Drilling Platform and Living Quarters of the Kalamkas-Sea and Khazar Field Development Project during the FEED stage. The study focuses on identifying potential hazard scenarios, quantifying associated risks, and ensuring that all risks are reduced to ALARP (As Low As Reasonably Practicable) through appropriate mitigation measures.
The QRA study for the Kalamkas-Sea and Khazar Field Development Project was performed during the FEED (Front End Engineering Design) stage, with a focus on offshore operational safety and risk informed design. The assessment evaluated potential hazard scenarios associated with drilling and living facilities, ensuring that risks to personnel, assets, and the environment are systematically analyzed and controlled.
A structured and data-driven approach was applied to identify Loss of Containment (LOC) scenarios and assess fire, explosion, and gas dispersion risks. Industry-standard methodologies and databases were used to estimate failure frequencies and model consequences such as jet fires, pool fires, explosions, and gas releases.
The study enabled the calculation of key risk metrics, including Individual Risk Per Annum (IRPA), Potential Loss of Life (PLL), and societal risk (FN curve). These outputs supported design optimization and ensured alignment with project-specific risk acceptance criteria.
The scope of the study included:
Overall, the study confirmed that all identified risks were reduced to ALARP levels and within acceptable limits, supporting safe design and regulatory compliance.
Quantitative Risk Assessment (QRA) is a structured and data-driven methodology used in offshore oil & gas facilities to evaluate risks associated with hazardous operations. It combines the likelihood of potential incidents with their consequences to estimate the overall risk to people, assets, and the environment. This approach provides a strong technical basis for making safer design and operational decisions.
The primary objective of this QRA study is to support safe and compliant facility design by systematically evaluating risk scenarios. The study ensures that all major hazards are identified, analyzed, and controlled within acceptable limits.
Key objectives include:
The QRA follows a structured six step methodology aligned with international standards. It begins with hazard identification and progresses through consequence modeling, frequency analysis, and risk evaluation to ensure a comprehensive understanding of risk.
Initially, all possible hazards related to process conditions, materials, equipment, and external events are identified. Based on this, credible release scenarios such as small leaks, large leaks, and catastrophic failures are selected for further analysis. Consequence modeling is then carried out to evaluate potential outcomes like fire, explosion, and gas dispersion, along with their impact distances.
The risk analysis stage combines the likelihood of occurrence with consequence severity using industry data sources such as IOGP and OREDA. The results are expressed in terms of individual and societal risk, helping assess the impact on personnel and nearby areas.
The methodology includes:
The QRA study was performed in accordance with internationally recognized standards and guidelines to ensure accuracy, reliability, and regulatory compliance. These standards provide the framework for hazard identification, consequence modeling, and risk evaluation.
Key standards applied include CMPT (1999), TNO Purple Book (CPR 18E), IOGP 434, NORSOK Z-013, API RP 752, and CCPS guidelines for consequence analysis.
The results of the QRA provided a comprehensive understanding of both individual and societal risk levels associated with the offshore facility. Risk metrics such as LSIR, IRPA, PLL, and FN Curve were evaluated to support design and safety decisions.
The study confirmed that appropriate risk reduction measures significantly lowered the risk levels. These measures were validated through ALARP demonstration, sensitivity analysis, and cost-benefit analysis to ensure their effectiveness and proportionality.
Key outcomes include:
This QRA study plays a critical role in ensuring the safety and reliability of offshore operations. By providing a quantitative basis for risk evaluation, it supports informed decision-making, regulatory compliance, and protection of personnel and assets. The results demonstrate that the Kalamkas-Sea offshore platform design meets international safety expectations with risks maintained within acceptable limits.
We deliver accurate risk analysis, compliance support, and optimized safety design.
