Risk analysis and numerical simulations will guide CCS implementation by providing stakeholders (operators, project developers, general public, and regulators) with information to predict the long-term fate of CO2 including, but not limited to the projected amount of long-term CO2 storage, potential risks and consequences of CO2 leakage in that area, and probabilistic leakage rates from specific geologic formations where CO2 is injected. Appendices Successful implementation of geologic CO2 storage projects will require developers to compare critical criteria among candidate sites including storage capacity, health and environmental safety, economics, local regulatory constraints, monitoring efficacy, and potential ancillary benefits, such as enhanced hydrocarbon production. Application of Risk Analysis and Numerical Simulations 5. Fundamental Aspects of Numerical Simulation 4.
MURPHY PRESSURE SWITCH OPLC MANUAL
E xecutive SummaryThis manual is organized into 6 major sections: 1. The manual illustrates the concepts of risk analysis (risk assessment) and numerical simulation by describing the experience gained by the DOE Regional Carbon Sequestration Partnerships as they implemented multiple field projects. This BPM discusses the ways in which the partnerships have used codes to model the specific processes (thermal and hydrologic, chemical, mechanical, and biologic) in the subsurface that need to be considered in modeling the behavior of injected CO2. They are also used to optimize monitoring design and facilitate more effective site characterization. Models serve as critical tools in a framework to identify, estimate, and mitigate risks arising from CO2 injection into the subsurface. Numerical simulations or models are used to predict the movement and behavior of CO2 once it is injected into the subsurface. This Best Practices Manual focuses mainly on the risks arising from unplanned migration of injected CO2 from the confining zone and provides an overview of these concepts as applied to geologic CO2 storage. Three steps in risk analysis include risk source assessment, risk characterization and risk management. Risk analysis is used in many disciplines and can be applied broadly in geologic CO2 storage projects to understand and mitigate an array of potential impacts on and from a project. Risk is defined as the product of the probability of an event or outcome and the likely cost or consequence of it. Risk analysis and numerical simulation are critical tools used iteratively in conjunction with site characterization, monitoring, public outreach throughout all of the stages of a geologic CO2 storage project (site screening, site selection, project design, project operation, and long-term stewardship of carbon dioxide capture and storage projects) to help meet the goals of safe, secure, and verifiable permanent storage. The ultimate goal of geologic carbon dioxide (CO2) storage is to help reduce the amount of greenhouse gas (GHG) emissions in the atmosphere by ensuring safe, secure, and verified permanent storage in geologic formations.
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