Article
Energy & Fuels
Li Yang, Wang Rui, Qingmin Zhao, Zhaojie Xue, Yinbang Zhou
Summary: A four-scale and three-level CO2 storage potential evaluation method for saline aquifers in a petroliferous basin in China is proposed, considering geological, engineering, and economic factors. The method evaluates theoretical storage capacity, engineering storage capacity, and economic storage capacity, considering factors such as trapping mechanisms, injectivity, storage security pressure, well number, and carbon pricing yield. Application of this method in the Gaoyou sag of the Subei Basin reveals the proportion of different trapping mechanisms and highlights the significant difference between theoretical, engineering, and economic storage capacity.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2023)
Article
Thermodynamics
Kai Zhang, Hon Chung Lau
Summary: The study investigates the feasibility of storing CO2 inside hydrate stability zone (HSZ) through reservoir pressure management via water producers and CO2 injectors. Results show that by controlling reservoir pressure, CO2 can be stored in HSZ with the formation of CO2 hydrate delaying CO2 breakthrough and limiting gas leakage. The research highlights the potential of storing CO2 in aquifers with a HSZ, with implications for CO2 geological storage.
Article
Geosciences, Multidisciplinary
Songyan Li, Peng Wang, Zhoujie Wang, Hao Cheng, Kaiqiang Zhang
Summary: Geological CO2 storage is a promising approach to mitigate global carbon emissions, and saline aquifers and oil/gas reservoirs have been proven to be the most suitable storage sites. This paper proposes a novel strategy of enhancing CO2 storage capacity by synthesizing and utilizing high-dryness CO2 foam. Through experiments, it is confirmed that the new foam can effectively increase storage capacity and reduce water consumption.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Review
Geosciences, Multidisciplinary
Ning Wei, Xiaochun Li, Zhunsheng Jiao, Philip H. Stauffer, Shengnan Liu, Kevin Ellett, Richard S. Middleton
Summary: This article discusses the importance of CO2 storage in deep saline aquifers and highlights the inconsistencies and uncertainties in current capacity assessments. It proposes a hierarchical framework to define capacity types and addresses the need for a consensus approach in assessing storage capacity.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Energy & Fuels
Jiazheng Qin, Qianhu Zhong, Yong Tang, Zhenhua Rui, Shuai Qiu, Haoyu Chen
Summary: The application of Saline Aquifer CO2 Storage (SACS) projects in offshore saline aquifers in China shows promising potential in terms of technical and economic viability. However, the storage capacities determined by different methods vary significantly. The CO2BLOCK method seems to provide more reasonable results and further confirms the immense potential of industrial-scale pilot and demonstration CO2 storage projects in offshore deep saline aquifers in China.
Article
Green & Sustainable Science & Technology
Panagiotis Karvounis, Martin J. Blunt
Summary: This study analyzed potential CO2 storage sites in the North Sea to estimate available storage capacity. The results showed tremendous potential for CO2 storage to play a significant role in averting a temperature increase of more than 1.5 degrees C in Europe.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Engineering, Multidisciplinary
Yan Shi, Yadong Lu, Yushi Rong, Ze Bai, Hao Bai, Mingqi Li, Qingchen Zhang
Summary: This paper numerically studied the geochemical reaction mechanism of CO2 storage in saline aquifers and its effects on the reservoir rocks and CO2 consumption. The results showed that the long-term geochemical reactions did not affect the porosity and permeability of the rocks and had no adverse consequences for extraction. The captured CO2 was distributed in gas, aqueous phase, and minerals, accounting for 27%, 65%, and 8% respectively. The study provides a theoretical reference for underground energy storage projects involving fluid-rock interactions.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Yong Yuan, Jianqiang Wang, Jianwen Chen, Ke Cao, Jie Liang, Tianyu Lan, Dongyu Lu, Xudong Guo
Summary: Underwater reservoirs in the South Yellow Sea Basin (SYSB), China, provide favorable geological conditions for carbon dioxide (CO2) storage, as determined by the USDOE calculation method and a formation volume model. The Cenozoic saline aquifers in the SYSB have a significant storage capacity of CO2, ranging from 39.59 Gt to 426.94 Gt, which can meet the carbon sequestration needs of Shandong and Jiangsu Provinces for approximately 89 years.
Article
Green & Sustainable Science & Technology
Firdovsi Gasanzade, Wolf Tilmann Pfeiffer, Francesco Witte, Ilja Tuschy, Sebastian Bauer
Summary: This study examined the potential of hydrogen, methane, and compressed air energy storage in subsurface porous formations, showing that the storage potential far exceeds the predicted demand, and suitable storage rates can be achieved in all storage formations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Alessandro Suriano, Costanzo Peter, Christoforos Benetatos, Francesca Verga
Summary: This study investigates the impact of model grid discretization on CO2 injection and trapping in underground storage. The results highlight that grid refinement is crucial for accurately simulating pressure evolution and the amount of CO2 trapped in geological formations.
Article
Geosciences, Multidisciplinary
Blessing Ayotomiwa Afolayan, Eric Mackay, Mimonitu Opuwari
Summary: Carbon capture, utilization and storage (CCUS) is a crucial technology for greenhouse gas mitigation, and underground CO2 injection is a key aspect of carbon sequestration. This study focuses on a depleted oilfield reservoir in the Bredasdorp Basin, offshore South Africa, and examines its petrophysical properties and static storage capacity, demonstrating its suitability for CO2 storage.
NATURAL RESOURCES RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
M. Adeel Sohal, Yann Le Gallo, Pascal Audigane, J. Carlos de Dios, Sean P. Rigby
Summary: The study investigates the impact of geological heterogeneities on reservoir storage capacity and CO2 plume migration in the Hontomn deep saline aquifer. Long-term simulations of CO2 injection in the fractured carbonate reservoir show significant influence of matrix and porosity heterogeneities on storage capacity. Gas migration is affected by heterogeneities, with higher gas saturation observed in heterogeneous cases compared to homogeneous ones.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Energy & Fuels
Mojdeh Delshad, Yelnur Umurzakov, Kamy Sepehrnoori, Peter Eichhubl, Bruno Ramon Batista Fernandes
Summary: Hydrogen is an attractive energy carrier for various applications, and successful underground hydrogen storage technology is crucial for a hydrogen economy. Different options, such as manmade caverns, salt domes/caverns, saline aquifers, and depleted oil/gas fields, have been used for storing large quantities of gaseous hydrogen. The key requirements for porous rock formations storing hydrogen include adequate capacity, containment ability, high-volume injection/extraction capability, and reliable caprock to prevent leakage. Detailed evaluations and simulations have shown that while experiences with CO2 and natural gas storage cannot be simply replicated with hydrogen, hydrogen storage requires special containment measures due to its lateral spread behavior.
Article
Green & Sustainable Science & Technology
Lucy Romeo, Randal Thomas, MacKenzie Mark-Moser, Andrew Bean, Jennifer Bauer, Kelly Rose
Summary: The world produces a huge amount of greenhouse gases annually, and geologic CO2 storage could help reduce carbon emissions. New technologies are needed to assess offshore carbon storage and meet resource and commercial needs. Offshore storage offers advantages of being away from population centers and having less interaction with groundwater.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Xiaocong Lyu, Denis Voskov, William R. Rossen
Summary: This study utilizes a consistent thermodynamic model to describe the complex phase behavior of the CO2-brine system, incorporating an IT model for foam to accurately capture the dynamics of CO2 foam in the sequestration process. Simulation results validate the effectiveness of enhanced CO2 dissolution and foam in CO2 storage.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)