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The focus of this project is to conduct a comprehensive assessment to determine the suitability of an ocean basalt reservoir in the Cascadia Basin offshore from Washington State and British Columbia (Figure 1) for the safe and permanent storage of 50 million tons of carbon dioxide (CO2). The project team will also work to better understand the methods and feasibility for large-scale, permanent storage of CO2 in deep basalt reservoirs in oceans around the world. This project will leverage a large collection of drilling, well log, and core sample data, as well as existing borehole and seafloor instrumentation, existing modeling studies, and new modeling capabilities. Finally, this project will establish reservoir and risk assessment methods and tools for reservoirs of this type.
This project will help lead to the expansion of reservoir types suitable for the safe and permanent storage of CO2. The project team will also leverage existing data to develop reservoir and risk assessment methods and tools that can be used for future assessments of potential reservoirs of this geologic type. These benefits will ultimately help attain the U.S. Department of Energy’s (DOE) goals of validating technologies that will ensure 99 percent storage permanence and developing technologies that improve reservoir storage efficiency while ensuring containment effectiveness.