Article
Engineering, Environmental
Yuting Zhang, Christopher Jackson, Samuel Krevor
Summary: This study estimates the amount of CO2 stored by facilities since 1996 based on publicly available sources and categorizes them into three assurance levels. The storage estimates indicate significant climate relevance comparable to renewable energy emissions impacts. The widely used capture capacity is not a reliable proxy for storage volumes, emphasizing the need for uniform reporting with quality assurance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Energy & Fuels
Junhyung Choi, Kyungbook Lee, Young Jae Shinn, Seil Ki, Dae Sung Lee
Summary: This study conducted core sampling of a potential CO2 storage site in southeast Korea and identified two promising geological formations as prospective CO2 storage reservoirs. Injection efficiency, CO2 migration, and directional transport properties were evaluated using core plugs measurements and flow modeling. The analysis showed a higher injection efficiency at a depth of 739 m compared to 779 m, with correlations among directional permeabilities useful for assessing CO2 storage capacity, injectivity, and leakage risk.
Article
Green & Sustainable Science & Technology
Ping Lu, Yu-yu Hao, Yong Bai, Wei-gang Liu, Xi Chen, Hua-an Zheng, Jie Liu, Yong-zhen Chen, Jian-Ping Gao
Summary: The research focused on ranking the CO2 geological storage areas in carbonate reservoirs of the Ordos Basin based on geological, safety, and economic perspectives, providing a reference for selection of suitable sites for large-scale CO2 emission reduction.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Green & Sustainable Science & Technology
Xin Ma, Yujie Diao, Lei Fu, Jing Yan, Guodong Yang, Chenglong Zhang, Siyu Liu, Hanchuan Dong, Ying Yu
Summary: This study investigates the influence of geochemical reactions among CO2, water and key minerals on caprock sealing. The results show that long-term water-rock interactions without CO2 injection lead to obvious dissolution in caprock, increasing its permeability. However, under conditions of CO2 injection, the self-sealing capability of the caprock is continuously enhanced, reducing permeability. This study provides a theoretical basis for reservoir-caprock selection and safety evaluation of CO2 geological storage.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Green & Sustainable Science & Technology
Victor Carlotto, Alexis Duenas, Eusebio Ingol-Blanco, Sandra Santa-Cruz
Summary: This study aims to identify potential areas for the geological storage of CO2 in Peru and evaluates thirteen potential storage sites using multi-criteria analysis tools. The results indicate that residents near the prioritized sites have a positive attitude towards CCS projects as long as biodiversity and economic conditions are not at risk.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Manguang Gan, Minh C. Nguyen, Liwei Zhang, Ning Wei, Jun Li, Hongwu Lei, Yan Wang, Xiaochun Li, Philip H. Stauffer
Summary: This paper presents a system-level risk assessment for the Shenhua CO2 storage site in China, using the NRAP-IAM-CS model. Results show that leakage tends to stabilize after 300 Monte Carlo simulations, with low probability of significant CO2/brine leakage through existing wells at the site. Recommendations for pH and TDS monitoring plans for the shallow aquifer are suggested to minimize risks.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Environmental Sciences
Yanlin Yang, Jing Jing, Zhonghua Tang
Summary: This study investigates the impact of formation attributes and controllable factors on CO2 storage capacity through simulation experiments and data analysis. The results demonstrate that injection temperature and formation slope significantly influence CO2 storage capacity. It was also found that higher injection temperature and smaller formation slope are more conducive to CO2 storage.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Pawel Bielka, Szymon Kuczynski, Stanislaw Nagy
Summary: Observing the greenhouse effect raises the need to reduce anthropogenic carbon dioxide emissions, and one method of doing so is Carbon Dioxide Capture and Storage. This study focuses on the technologies of CO2 capture, separation, dehydration, transportation, and selection of a suitable storage site. A dehydration and compression system for captured carbon dioxide was designed with specific temperature, pressure, and mass flow rate conditions. Triethylene glycol (TEG) was used for dehydration, with a flow rate of 0.5 kg/s and a H2O content of 26.6 ppm. By adopting a maximum post-compression gas temperature, energy usage and plant operating costs are minimized. It is recommended to integrate the CO2 compression and cooling system to recover heat and increase power unit efficiency.
Article
Multidisciplinary Sciences
Jeffrey M. Bielicki, Martina Leveni, Jeremiah X. Johnson, Brian R. Ellis
Summary: Achieving ambitious greenhouse gas mitigation targets will require advances in carbon-free power generation and the use of geologic carbon dioxide (CO2) storage. Utilizing CO2 as a working fluid for geothermal energy production and energy storage can help isolate CO2 from the atmosphere and enable high levels of carbon-free electricity production. This article summarizes the state of knowledge for sedimentary basin CO2-geothermal and explores its potential role in decarbonizing the energy sector. It also discusses the promise and challenges of using geologically stored CO2 for bulk energy storage.
Article
Energy & Fuels
Dazhong Ren, Xiangzeng Wang, Zuhao Kou, Shouchuan Wang, Heng Wang, Xiaoguang Wang, Yong Tang, Zunsheng Jiao, Desheng Zhou, Rongjun Zhang
Summary: This study conducted a pilot test of CO2-EOR and storage in the Baibao oilfield in the Ordos Basin of China. The results showed that CO2 injection can significantly increase oil production, but different injection schemes have varying effects on CO2 storage. Furthermore, the CO2 injection rate in WAG has a more significant impact on total oil production compared to water injection.
Article
Green & Sustainable Science & Technology
Yuna Cai, Hongwu Lei, Xiaochun Li, Guanhong Feng, Yinxiang Cui, Bing Bai
Summary: This study examines the leakage of injected CO2 through wellbores and explores the phenomena and characteristics associated with this leakage. The results show that the CO2 leakage in the Ordos CCS project is self-limited and eventually stops when the reservoir pressure is offset. Gasification of the CO2 during the leakage enhances the leakage process. Additionally, crossflow between different injection layers through the wellbore continues even after the leakage stops at the wellhead. The permeability and pressure distribution of the reservoir play crucial roles in the CO2 leakage process.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Chemistry, Multidisciplinary
Youngsoo Song, Jihoon Wang
Summary: The study developed an artificial neural network model to optimize relief well design in Pohang Basin, South Korea. By training and testing with various injection scenarios, the model showed great performance with high R-2 values and low RMSE values, accurately predicting the location of the relief well.
APPLIED SCIENCES-BASEL
(2021)
Article
Energy & Fuels
Majid Safaei-Farouji, Hung Vo Thanh, Danial Sheini Dashtgoli, Qamar Yasin, Ahmed E. Radwan, Umar Ashraf, Kang-Kun Lee
Summary: This study used intelligent models to forecast the interfacial tension (IFT) in the CO2-brine system, with the random forest (RF) model performing the best. Sensitivity analysis identified the significant impact of pure and non-pure CO2 systems on the predictions. Additionally, the RF model was used to assess the structural trapping capacity of a specific storage location.
Article
Green & Sustainable Science & Technology
Richardson M. Abraham-A, C. C. G. Tassinari
Summary: The study presents algorithms for predicting CO2 storage potentials of shale and carbonate reservoirs in the Irati Formation to maximize storage capacity by reducing geological constraints.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Thermodynamics
A. Carro, R. Chacartegui, C. Ortiz, J. Carneiro, J. A. Becerra
Summary: The use of CO2 as a working fluid in power generation and storage applications has seen significant growth in recent years, with novel combined use of supercritical CO2 cycles showing promise as energy storage systems and for carbon dioxide sequestration. These cycles demonstrate high potential for competitive electric to electric storage efficiencies and costs, while also indicating the possibility of additional CO2 storage. This concept provides an opportunity for energy storage systems, particularly when combined with carbon-intensive industries such as cement or chemicals.
APPLIED THERMAL ENGINEERING
(2021)
Review
Energy & Fuels
Yongsheng Tan, Qi Li, Liang Xu, Abdul Ghaffar, Xiang Zhou, Pengchun Li
Summary: This study provides a detailed review of CO2 enhanced oil recovery (EOR) in carbonate reservoirs and discusses the characteristics of carbonate reservoirs, various CO2 injection schemes, and the mechanisms of CO2-oil and CO2-fluid-rock interactions. The findings of this study contribute to a better understanding of the CO2 EOR mechanism in carbonate reservoirs and suggest future research directions.
Article
Instruments & Instrumentation
Abdul Ghaffar, Qi Li, Mujahid Mehdi, Bhagwan Das, Ishrat Hameed Alvi, Qifeng Xie, Jiyuan Ma
Summary: This article introduces a multiplexing sensor technique based on intensity variation for angle and temperature measurement using polymer optical fiber. The experimental results demonstrate that this technique is much easier to implement compared to other methods and can be used for a wide range of measurements, including force, strain, pressure, and refractive index.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Review
Construction & Building Technology
Ishrat Hameed Alvi, Qi Li, Yunlu Hou, Chikezie Chimere Onyekwena, Min Zhang, Abdul Ghaffar
Summary: This comprehensive review evaluates the research efforts on the utilization of graphene oxide (GO) in recycled aggregate-based cement composites (GO-RA-CC) and maps the research viewpoints from available literature. The results indicate that the addition of GO can improve the mechanical and durability properties of RA-CC by enhancing interfacial transition zones and increasing hydration reactions. Life cycle assessment studies also show that GO-RA-CC has better environmental performance, particularly in CO2 emissions reduction, compared to conventional cement composites.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Green & Sustainable Science & Technology
Chikezie Chimere Onyekwena, Qiang Xue, Qi Li, Happiness Ijeoma Umeobi, Abdul Ghaffar, Mohammad Hamed Fasihnikoutalab
Summary: This article aims to review previous studies on the reaction mechanisms of rMgO, factors influencing the carbonation curing of rMgO-based composites, and the application of carbonated rMgO in soil stabilization. The findings suggest that rMgO hydration is crucial and material properties and curing conditions affect the carbonation process. Carbonation treatment improves the mechanical and durability performance of carbonated rMgO composites by refining the pore structure and improving porosity. Utilizing hydration agents eliminates delayed hydration and enhances carbonation efficiency. Recommendations for future research directions on rMgO-based composites carbonation are provided.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Thermodynamics
Liang Xu, Qi Li, Matthew Myers, Xiaomin Cao
Summary: Huff-n-puff methods using nanofluid and/or CO2 are the most promising methods for enhancing oil recovery in the Mahu Oilfield, Xinjiang, China. The study showed that D2O could only strip oil from larger pores, resulting in a low oil recovery efficiency of 14.89%. On the other hand, CO2 could effectively enter both small and large pores, leading to a higher oil recovery efficiency of 40.44%. When combined with CO2, the nanofluid further improved the oil recovery in small pores by more than 10%. Overall, the synergistic effect of combining CO2 and nanofluid huff-n-puff achieved recovery rates close to 50% of the overall oil.
Article
Engineering, Ocean
Chikezie Chimere Onyekwena, Qi Li, Ishrat Hameed Alvi, Abdul Ghaffar, Xianwei Zhang
Summary: This study investigates the geomechanical performances of geocell-reinforced soil (GRS) backfilled with magnesia-based cement-stabilized marine fill using the nonlinear stress-strain relationship and 3-D FEM models as an alternative to the traditional earth GRS walls. The study finds satisfactory results regarding stability, deformation, and settlement. Therefore, cement-stabilized soil retaining walls using magnesia-based cement could be a viable alternative to traditional earth GRS walls.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2023)
Article
Engineering, Geological
Xiaying Li, Xinglin Lei, Haimeng Shen, Qi Li
Summary: The distribution of pore water significantly affects the mechanical property of rocks. In this study, the effect of heterogeneous distribution of pore water with high pressure on lower Shaximiao sandstone was investigated. It was found that flooding region with higher pore pressure benefits earlier fracturing, with fractures initiating in the saturated region and migrating towards partially saturated and dry regions. The formation of complex microcrack network and induced seismicity with higher b-value around the wet/dry boundary suggests the potential of developing an interactive wet/dry mixed fracturing technology to facilitate the formation of complex fracture networks and reduce the risk of induced earthquakes.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Energy & Fuels
Hesam Bazargan Harandi, Liwei Zhang, Ali Kargari, Pang-Chieh Sui, Yan Wang, Meiheriayi Mutailipu, Hao Lu, Qi Li
Summary: This study provides a brief review on CO2-EWR technology and its necessities. It comprehensively assesses various treatment technologies for high TDS brine and proposes a chain desalination process for treatment. Membrane distillation (MD) is selected as a suitable main treatment technology, and a mathematical thermodynamic model is programmed to analyze its performance parameters. The study also demonstrates that using a solar energy auxiliary system can enhance the flux of produced freshwater from the extracted brine.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Civil
Tao Yu, Qi Li, Yongsheng Tan, Bowen Chen, Haixiang Hu
Summary: This study investigated the influence of wettability in tight sandstone reservoirs on the replacement of brine by CO2 in nanopores through molecular dynamics simulations. The results demonstrated that the interaction between CO2 and water molecules near pore walls varied significantly depending on the wettability, affecting the replacement mechanism.
JOURNAL OF HYDROLOGY
(2023)
Article
Energy & Fuels
Xiaoyan Zhang, Ning Liu, Qi Li, Pingzhi Chen, Xiaochen Wei
Summary: Acid gas injection is an effective strategy for dealing with waste gas in sour oil and gas reservoirs. This study examines the impact of H2S content on acid gas migration and storage in shale reservoirs. The results show that variations in acid gas properties due to different H2S contents greatly influence its plume migration. The horizontal migration distance and pattern change with H2S content, with the maximum distance occurring at different locations depending on the acid gas state.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Xiaying Li, Xinglin Lei, Qi Li
Summary: Understanding the propagating mechanism of complex fracture network is crucial for optimizing the hydraulic fracturing design scheme. The experimental results show that the hydraulic fracturing behaviors were significantly influenced by bedding structure and water infiltration. The bedding plane plays an important role on breakdown pressure, distribution characteristics of AE activities and hydraulic fracture networks.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Yiyan Zhong, Qi Li, Liang Xu, Yiping Wen, Yunlu Hou, Wenbin Gao
Summary: The heterogeneity of reservoirs has a significant impact on the migration behavior of CO2. Higher coefficient of variation and correlation length values can reduce the migration distance of CO2 while increasing the spread extent. Reservoirs with high coefficient of variation and low correlation length are more suitable for safely storing CO2.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Tao Yu, Qi Li, Yongsheng Tan, Haixiang Hu, Liang Xu, Xiaochun Li, Lifeng Xu, Bowen Chen
Summary: This study used molecular dynamics simulation to investigate the behavior of fluid-fluid and fluid-solid interfaces and the exploitation potential of film-like residual oil in water-wet, mixed-wet, and oil-wet systems after CO2 flooding. The results showed that CO2 molecules could easily enter the oil films and divide the oil phase into clusters of different sizes.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Review
Environmental Sciences
Guizhen Liu, Bofeng Cai, Qi Li, Xian Zhang, Tao Ouyang
Summary: This study focuses on China's CCUS pathways and draws three key conclusions: CCUS is essential for achieving carbon neutrality in China, has the potential to meet emission reduction targets, and the cost is expected to decrease with technological advancements.
Article
Engineering, Geological
Qi Li, Wenbin Fei, Jianli Ma, Miao Jing, Xiaochen Wei
Summary: This paper introduces an in-house code called AEEA Coupler, which links two industrial standard simulation software programs, Abaqus and Eclipse, to enable THM simulation of large-scale complex geological models. Interpolation, adaptive search algorithms, and data exchange techniques are utilized to improve accuracy and applicability, which are validated through benchmark tests.
ENVIRONMENTAL GEOTECHNICS
(2022)
