A Comprehensive Sensitivity Analysis on CO2 Plume Migration and Trapping under Tilted Sinusoidal Structures

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

Saline aquifers are considered as one of the most suitable options for geological storage of CO2. After being injected, due to its lower buoyancy and viscosity in comparison to the resident brine, the majority of the CO2 plume tends to move updip and form a thin layer underneath the caprock at the top of the reservoir. In this study, we have questioned the widespread use of the simplified geological model and have shown the impact of the structure of the sealing unit on the long-term CO2 migration direction and trapping mechanisms through a systematic approach. To achieve this goal, a comprehensive sensitivity analysis is performed using 375 different scenarios to study the impact of well-location, small scale topography variations of caprock (rugosity) and aquifer slope on CO2 migration and trapping mechanisms. The results show an increase in the amount of dissolved and trapped CO2 by increasing the tilt angles.
Original languageEnglish
Title of host publication81st EAGE Conference and Exhibition 2019
PublisherEarthDoc
DOIs
Publication statusPublished - 3 Jun 2019
Event81st EAGE Conference and Exhibition 2019 - London, United Kingdom
Duration: 3 Jun 20196 Jun 2019
https://www.spe.org/events/en/2019/conference/19euro/spe-europec-featured-at-81st-eage-conference-and-exhibition.html

Conference

Conference81st EAGE Conference and Exhibition 2019
CountryUnited Kingdom
CityLondon
Period3/06/196/06/19
Internet address

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sensitivity analysis
trapping
plume
aquifer
sealing
tilt
buoyancy
brine
viscosity
topography
comparison

Cite this

A Comprehensive Sensitivity Analysis on CO2 Plume Migration and Trapping under Tilted Sinusoidal Structures. / Ahmadinia, Masoud; Shariatipour, Seyed M.; Sadri, Mahdi.

81st EAGE Conference and Exhibition 2019 . EarthDoc, 2019.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Ahmadinia, M, Shariatipour, SM & Sadri, M 2019, A Comprehensive Sensitivity Analysis on CO2 Plume Migration and Trapping under Tilted Sinusoidal Structures. in 81st EAGE Conference and Exhibition 2019 . EarthDoc, 81st EAGE Conference and Exhibition 2019 , London, United Kingdom, 3/06/19. https://doi.org/10.3997/2214-4609.201901648
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abstract = "Saline aquifers are considered as one of the most suitable options for geological storage of CO2. After being injected, due to its lower buoyancy and viscosity in comparison to the resident brine, the majority of the CO2 plume tends to move updip and form a thin layer underneath the caprock at the top of the reservoir. In this study, we have questioned the widespread use of the simplified geological model and have shown the impact of the structure of the sealing unit on the long-term CO2 migration direction and trapping mechanisms through a systematic approach. To achieve this goal, a comprehensive sensitivity analysis is performed using 375 different scenarios to study the impact of well-location, small scale topography variations of caprock (rugosity) and aquifer slope on CO2 migration and trapping mechanisms. The results show an increase in the amount of dissolved and trapped CO2 by increasing the tilt angles.",
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