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A hybrid Monte Carlo simulation risk model for oil exploration projects
1Başkent University, Faculty of Engineering, Department of Civil Engineering, Ankara, Turkey.
Marine Pollution Bulletin
|August 11, 2023
Summary
A novel 3-D Hybrid Monte Carlo Simulation (MCS) model assesses oil spill risks, integrating environmental factors like tsunamis and climate change for offshore projects. This advanced model quantifies risks from blowouts, providing crucial data for exploration safety.
Area of Science:
- Environmental Science
- Risk Assessment
- Oceanography
Background:
- Offshore oil exploration faces significant environmental risks, including spills from blowouts.
- Existing models often lack the capability to integrate multiple complex environmental factors like tsunamis and climate change.
- Accurate risk assessment is crucial for the safety and sustainability of oil exploration projects.
Purpose of the Study:
- To introduce a new 3-D Hybrid Monte Carlo Simulation (MCS) Risk Model for assessing environmental risks in oil exploration.
- To integrate sub-models for wind, wave, current, climate change, and tsunami into a unified risk assessment framework.
- To quantify the Spill Risk Index (SRI) and mean arrival times for various oil spill scenarios.
Main Methods:
- Development of a 3-D Hybrid Monte Carlo Simulation (MCS) Risk Model.
- Interrelation of MCS with sub-models from the Three-Dimensional Hydrodynamic Transport and Water Quality Model (HYDROTAM-3D).
- Simulation of environmental conditions including wind, wave, current, climate change, and tsunami risks.
- Modeling of oil spill scenarios, including rig/port fuel supply and riser blowouts.
Main Results:
- The model successfully simulates probability distributions for environmental conditions.
- A Tier I spill risk index (SRI) of approximately 1 ton/ship was calculated for a 50 blue barrel spill with an annual occurrence probability of 1.0 × 10⁻⁶.
- A Tier II risk scenario involving a riser blowout (4000 bbls discharge) resulted in an SRI of 546 metric tons, with a mean spill arrival time of 145 minutes.
Conclusions:
- The proposed 3-D Hybrid MCS Risk Model is unique in its ability to incorporate tsunami, storm, and sea level rise risks for oil exploration.
- The model provides quantitative risk assessments (SRI) and temporal data (arrival time) for oil spill events.
- This tool enhances the safety and environmental management strategies for offshore oil exploration projects.
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