An approach for assessment of CO2 leakage using mechanistic modelling: CO2 injection in deep saline aquifer of Lithuanian basin in presence of fault and fractures

Abstract

Injecting CO2 into deep saline aquifers is a prominent strategy for carbon capture and storage (CCS) to mitigate greenhouse gas emissions. However, ensuring the long-term integrity of CO2 storage is crucial to prevent leakage and potential environmental hazards. This paper investigates the impact of presence of faults and fracture on CO2 leakage volumes. Particular case of CO2 injection into a deep saline aquifer for carbon capture and storage (CCS) applications is investigated. This paper explores the relationship between fracture permeability and the potential for CO2 leakage.

Enhancing Injectivity in Lithuanian Hydrocarbon Reservoirs through Wettability-Altering Surfactant Injection

“…A differential pressure of 80-90 bars was used to inject the CO 2 into the reservoir. Although promising results were obtained from the initial CO 2 trial, the scale-up of CO 2 injection is currently held up due to some legal barriers related to CO 2 injection [10][11][12][13]. Therefore, it is natural to investigate other EOR methods for incremental oil recovery.…”