Event Detail

Event Type: 
Applied Mathematics and Computation Seminar
Friday, April 12, 2019 - 12:00 to 13:00
STAG 160

Speaker Info

U.S. Department of Energy, National Energy Technology Laboratory; Leidos Research Support Team, Battelle

Geologic storage (GS) of carbon dioxide (CO2) is an important technology for reducing greenhouse gas emissions. Geologic modeling and risk assessment are two integral components that run in tandem over the entire course of any GS project. The scope of the components may change as a project progresses from the pre-injection phase, through the injection period, to the post-injection phase. To date, there have been few industrial-scale GS projects that provide guidance for site operators on how to efficiently manage a storage complex during the post-injection period. A post-injection monitoring plan is required to produce metrics which meet the regulatory requirements to demonstrate that the storage complex (which might have legacy wells with integrity problems) has evolved to a state with an acceptably low level of risk to humans, resources, and the environment and can be closed. We propose a systems-level framework that can be used for the development of the post-injection monitoring plan and can be tuned for a specific GS project. We utilize detailed physics-based simulations to characterize the fluid and pressure behavior within storage reservoirs. We focus on the risk analysis of incidents that may occur at a GS site and simulations of conditions under which an operator can demonstrate that the risk of these events is sufficiently low to allow for site closure. This framework adapts to site-specific conditions, advances in risk assessment, and new regulatory requirements.

This is joint work with Gregory Lackey, Seth King, Nicolas Huerta, and Robert Dilmore