Risk Assessment using Certification Framework (SECARB Phase III Work Product 3.1.1b)
- The University of Texas at Austin, Austin, TX (United States); Southern States Energy Board
- The University of Texas at Austin, Austin, TX (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
The Southeast Regional Carbon Sequestration Partnership (SECARB) Phase III 1.5 million tonne CO2 sequestration project is taking place on the eastern side of an oilfield in southwestern Mississippi in the so-called High Volume Injection Test area (HiVIT). The source of CO2 for the project is the natural CO2 reservoir at Jackson Dome, Mississippi. We apply the Certification Framework (CF) approach to assess the risk of CO2 and brine leakage from the deep reservoir to various compartments where impacts could occur. The large depth (~10,000 ft, 3,050 m) of the Tuscaloosa Formation reservoir, presence of extensive thick marine mudstone confining zone, and well-known geology, among other factors, tend to minimize the likelihood of leakage. On the other hand, the large number of plugged and abandoned (P&A) wells provides potential flow paths for leakage upward to potable aquifers and potentially to the ground surface. A review of site characteristics relevant to leakage risk, simulation of the CO2 injection, and modeling of performance of P&A wells is presented to demonstrate the application of the Certification Framework (CF) for leakage risk assessment in the context of an enhance Oil Recovery (EOR) project.
- Research Organization:
- Southern States Energy Board, Peachtree Corners, GA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE)
- DOE Contract Number:
- FC26-05NT42590; AC02-05CH11231
- OSTI ID:
- 1819188
- Report Number(s):
- DOE-SSEB-42590-126
- Country of Publication:
- United States
- Language:
- English
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