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- W1569126171 abstract "Case studies of the application of the Certification Framework to two geologic carbon sequestration sites Curtis M. Oldenburg 1 , Jean-Philippe Nicot 2 , and Steven L. Bryant 3 Lawrence Berkeley National Laboratory, Earth Sciences Division, 90-1116, Berkeley, CA 94720 Bureau of Economic Geology, Jackson School of Geosciences, University of Texas, University Station, Box X, Austin, Texas 78713-8924 Center for Petroleum & Geosciences Engineering, Univ of Texas, Austin, 1 University Station C0300, Austin, TX 78712-0228 Abstract We have developed a certification framework (CF) for certifying that the risks of geologic carbon sequestration (GCS) sites are below agreed-upon thresholds. The CF is based on effective trapping of CO2, the proposed concept that takes into account both the probability and impact of CO2 leakage. The CF uses probability estimates of the intersection of conductive faults and wells with the CO2 plume along with modeled fluxes or concentrations of CO2 as proxies for impacts to compartments (such as potable groundwater) to calculate CO2 leakage risk. In order to test and refine the approach, we applied the CF to (1) a hypothetical large-scale GCS project in the Texas Gulf Coast, and (2) WESTCARB’s Phase III GCS pilot in the southern San Joaquin Valley, California. Keywords: geologic carbon sequestration; risk assessment; leakage risk; well leakage; case studies 1. Introduction We describe a novel and practical risk-based framework for certifying that the leakage risk of a potential geologic carbon sequestration (GCS) site is below agreed-upon thresholds [1]. Our approach addresses a wider set of risks than current federal deep underground injection regulations that protect underground sources of drinking water (USDW). The approach we developed, known as the Certification Framework (CF), proposes a standardized way for project proponents, regulators, and the public to analyze and understand risks and uncertainties of GCS in a simple and transparent way. Here we outline the CF methods and present the results from two case studies. 2. CF Methods Objectives of the CF The CF focuses on evaluation of the safety and effectiveness of a single GCS site as opposed to screening and ranking which examines multiple sites (e.g., [2,3]). We consider the surface operations associated with GCS (capture, compression, transportation) to be sufficiently well known that existing risk frameworks can be applied to" @default.
- W1569126171 created "2016-06-24" @default.
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- W1569126171 date "2009-01-29" @default.
- W1569126171 modified "2023-09-26" @default.
- W1569126171 title "Case studies of the application of the Certification Framework to two geologic carbon sequestration sites" @default.
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