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Article
Energy & Fuels
Sijia Wang et al.
Summary: CO2 capture and storage technology, particularly CO2-enhanced oil recovery (CO2 EOR), has the potential to significantly contribute to achieving net zero emissions. In this study, the unique physical properties of gas microbubbles (MBs) were utilized to improve pore utilization efficiency in sand samples under reservoir conditions. The results from nuclear magnetic resonance (NMR) testing revealed that MB injection resulted in a more significant left shift of the transverse relaxation time, allowing CO2 to occupy a wider range of large pore spaces. Additionally, the storage efficiency and gas storage potential were significantly enhanced within low-permeability sand when injected with MBs.
Article
Energy & Fuels
Zongfa Li et al.
Summary: The feasibility of N2 alternating CO2 injection for improving CO2 storage and oil production was investigated through laboratory experiments and numerical simulation. The results showed that the N2 alternating CO2 flooding had 2.1% lower CO2 storage factor and 7.1% lower enhanced oil recovery compared to continuous CO2 injection. However, the larger the N2 slug volume, the lower the EOR and CO2 storage factor, due to the reduction of CO2 concentration in the gas phase and CO2 solubility in oil and water. Nevertheless, the N2 slugs significantly reduced mobility differences between flowing zones, resulting in a 1.78 times larger gas swept area and a 44% higher cumulative oil production compared to continuous CO2 injection. Moreover, the optimized N2 alternating CO2 injection scheme achieved 19.6% more CO2 storage than continuous CO2 flooding at a field scale. This study provides valuable experimental and theoretical support for improving CO2 storage and oil production in an oil reservoir.
Article
Energy & Fuels
Wendong Wang et al.
Summary: CO2 storage is an important technique for achieving carbon peak and carbon neutralization, and depleted gas reservoirs are potential candidates for geological CO2 storage. High water-bearing wells in volcanic depleted gas reservoirs can be selected for CO2 storage. The gas-water distribution characteristics of the gas reservoir after CO2 injection are evaluated and the CO2 injection timing and volume are optimized. Typical wells have been selected for CO2 storage based on the research results.
Article
Computer Science, Artificial Intelligence
Yang Yang et al.
Summary: This paper proposes an integrated decision-making method for solving the site selection problem of CO2 geological storage, based on multi-objective optimization by ratio analysis plus the full multiplicative form (MULTIMOORA) method and prioritized aggregation operators in Pythagorean fuzzy environment. The method can evaluate the prioritization of CO2 geological storage candidate sites and provide decision support. The effectiveness and robustness of the method are verified through a comparative analysis of existing methods.
INTERNATIONAL JOURNAL OF COMPUTATIONAL INTELLIGENCE SYSTEMS
(2023)
Article
Environmental Sciences
Liam A. Bullock et al.
Summary: Many countries have committed to reducing CO2 emissions in order to achieve the goals of the Paris Agreement, and Spain, with its diverse geological setting, has the potential for high geochemical carbon dioxide removal (CDR). However, there is currently a lack of pilot schemes and large-scale strategies for CDR implementation in Spain, due to gaps in knowledge and lack of attention from regulatory bodies. This study identifies possible materials, locations, and strategies for future geochemical CDR research and implementation in Spain, highlighting the potential for kilotonne to million tonne scale CDR options.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Energy & Fuels
Sarkar Muheedin Hama et al.
Summary: Injecting surfactants through cEOR has attracted significant attention in improving oil recovery by altering fluid/rock and/or fluid/fluid interaction. The reduction in interfacial tension (IFT) by adsorption of surfactants on the oil/water interface plays a crucial role in mobilizing trapped oil in porous media. However, the toxicity, high cost, and environmental issues associated with chemical surfactants have led to the search for natural alternatives. This study provides a comprehensive overview of natural surfactant types and their performance in EOR, including the impact of fabrication methods, nanoparticle addition, and salinity. It was found that natural surfactants synthesized from seed oil showed superior performance compared to those extracted from other plant parts, achieving IFT reduction of up to 98% and improving ultimate oil recovery by 2-40% of the original oil in place (OOIP).
Article
Energy & Fuels
Xurong Zhao et al.
Summary: Under the background of dual-carbon, using shale gas reservoirs for CO2 injection and storage is strategically significant. A fully coupled model is established in this paper to comprehensively consider the complex characteristics of shale reservoirs for accurate reservoir simulation of CO2 injection and storage. The model's reliability and practicability are verified, and various factors affecting the production curve and CO2 storage characteristics are analyzed. The results show that the model is reliable and practical for studying enhanced shale gas recovery and CO2 storage.
Article
Energy & Fuels
Wendong Wang et al.
Summary: CO2 storage with enhanced gas recovery (CSEGR) technology is a pivotal solution for mitigating the greenhouse effect and complying with energy conservation and emission reduction policies. This paper thoroughly analyzes the mechanisms and potential of CO2 storage in gas reservoirs, as well as the factors affecting CSEGR. It also examines the current challenges and future trends in CSEGR development.
Article
Environmental Sciences
Zhu Liu et al.
Summary: Global CO2 emissions for 2022 increased by 1.5% relative to 2021 (+7.9% and +2.0% relative to 2020 and 2019, respectively), reaching 36.1 GtCO(2). These 2022 emissions consumed 13%-36% of the remaining carbon budget to limit warming to 1.5 degrees C, suggesting permissible emissions could be depleted within 2-7 years (67% likelihood).
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Seyed Soheil Noorizadeh Bajgirani et al.
Summary: In recent years, the use of smart water and surfactants to enhance oil recovery in carbonate reservoirs has gained significant attention. This study investigated the impact of various salts in smart water and two surfactants (CTAB and SDS) on wettability alteration and interfacial tension (IFT) in carbonate rock. Micromodel and core flooding tests were conducted to evaluate the oil recovery under different injection schemes. The results showed that CTAB or SDS in seawater (SW) had a stronger contact angle reduction effect compared to smart water. Increasing the concentration of SO42- and removing Na+ from SW resulted in more water-wet states. Divalent cations (Mg2+ and Ca2+) showed better performance in improving oil recovery. The combination of SW and surfactants had a more positive effect on boosting oil recovery compared to smart water flooding. The first-order injection scheme was more effective than the second-order injection scheme. SW + CTAB and SW + SDS in tertiary injection increased the oil recovery to about 59% and 57%, respectively, with CTAB being more effective than SDS.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Achyut Mishra et al.
Summary: This study presents a new computationally efficient reservoir screening approach using a graph network algorithm to identify the path of least resistance to CO2 flow and minimize the probability of pressure build-up due to lithological heterogeneity near the injection point.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Lucija Jukic et al.
Summary: The benefits of injecting CO2 into a gas-condensate reservoir include reducing emissions and increasing hydrocarbon production. Investing in low risk projects on already producing natural gas fields is feasible. In late production periods, the process can be carbon-negative, making the enhanced gas recovery scheme advantageous as a preliminary step before converting the reservoir to a CO2 storage facility.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Engineering, Environmental
Kaiqiang Zhang et al.
Summary: Geological carbon storage and utilization is a feasible approach to mitigate carbon emissions in the energy transition period, and shale reservoirs have attracted special attention due to their large reserves and wide global distribution. This study provides numerical simulation and analytical theory to investigate and apply the coupled processes of miscible CO2 utilization and post-production geological storage in fractured shales.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Computer Science, Information Systems
Hanlie Cheng et al.
Summary: Layered water injection technology effectively addresses the decrease in oil production and improves the properties of crude oil. However, there are issues with high labor cost and low operating efficiency in the existing technology, which require optimization and further research.
WIRELESS COMMUNICATIONS & MOBILE COMPUTING
(2022)
Article
Energy & Fuels
Ayman Mutahar AlRassas et al.
Summary: This study investigates the feasibility and potential of using the CO2-water alternating gas (CO2-WAG) method for CO2 sequestration and CO2 enhanced oil recovery (CO2-EOR) in a mature mixed sandstone-carbonate reservoir. The results show that the CO2-WAG scheme can increase the oil recovery factor and effectively utilize CO2 for storage in the reservoir.
Review
Engineering, Multidisciplinary
O. A. Odunlami et al.
Summary: This review compared the efficiencies of advanced and modern techniques for CO2 capture with those that are already in place. The study found that the combination of ionic liquids and membranes enhances selectivity for efficient CO2 capture, zeolites remove and store CO2 through adsorption, and molten carbonate fuel cells have high CO2 removal efficiencies at high temperatures.
RESULTS IN ENGINEERING
(2022)
Article
Energy & Fuels
Mohammad Yunus Khan et al.
Summary: This paper presents an analytical solution of the Buckley-Leverett equation in gas displacement process, accounting for viscous fingering and gravity effects. The results provide guidance on predicting pressure and saturation distribution in reservoirs of various properties, showing the significant impact of different parameters on total volumetric flux, breakthrough time, and front location.
Review
Environmental Sciences
Casper Boongaling Agaton
Summary: Real options approaches are increasingly used to evaluate uncertain CCS investments due to their flexibility, and further research is needed to analyze the key trends and hotspots in RO designs in CCS investments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Ariane D. N. Kamkeng et al.
Summary: This study reviews the current status and trends of CO2 transformation technologies, identifies the challenges faced by these technologies, and emphasizes the importance of developing improved catalysts and process intensification techniques for successful scale-up.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Hayder A. Alalwan et al.
Summary: This report discusses recent advancements in CO2 capturing methods, with a focus on chemical looping combustion (CLC) as a promising technology. CLC is highlighted for its ability to reduce the cost of CO2 separation and concentrate the captured CO2, making it a feasible option for carbon capture.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Azeem Sarwar et al.
Summary: In this study, activated carbon based adsorbents were synthesized from hydro-char through modified hydrothermal carbonization and thermochemical activation methods, exhibiting high specific surface area and microporous volume with notable CO2 adsorption capacity. The experimental data fit various adsorption isotherm models, and the adsorption of CO2 was found to be spontaneous and exothermic on the adsorbent.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Multidisciplinary
Sufia Khatoon et al.
Summary: The article introduces the use of polynomial chaos expansions (PCEs) as a replacement for the Markov chain Monte Carlo (MCMC) method in Bayesian inference for history matching. Through this method, accurate estimation of model parameters can be achieved with significantly fewer reservoir simulations.
INVERSE PROBLEMS IN SCIENCE AND ENGINEERING
(2021)
Review
Thermodynamics
Samrand Saeidi et al.
Summary: This paper discusses three promising processes for CO2 transformation using renewable H-2, and investigates influential factors affecting process efficiencies, as well as comparing different reactor configurations to assess the best one. A corrugated-wall dual-type membrane reactor is proposed as an emerging alternative for CO2 hydrogenation to value-added products.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2021)
Article
Energy & Fuels
Xi Yang et al.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Asif Hussain Khoja et al.
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Energy & Fuels
Y. Zapata et al.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Thermodynamics
Asif Hussain Khoja et al.
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Energy & Fuels
Kaiqiang Zhang et al.
Article
Green & Sustainable Science & Technology
Boqiang Lin et al.
JOURNAL OF CLEANER PRODUCTION
(2019)
Review
Energy & Fuels
Bao Jia et al.
Article
Multidisciplinary Sciences
Run-Ping Ye et al.
NATURE COMMUNICATIONS
(2019)
Proceedings Paper
Energy & Fuels
Meng Siwei et al.
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
(2019)
Article
Energy & Fuels
Herberth Arturo Vasquez Haro et al.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2018)
Article
Energy & Fuels
Jamiu Oyekan Adegbite et al.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2018)
Article
Energy & Fuels
Yuan Zhang et al.
Article
Energy & Fuels
Payam Kavousi Ghahfarokhi
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2017)
Article
Energy & Fuels
Ahmed Khalil Jaber et al.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2017)
Article
Chemistry, Physical
Andrew M. Howe et al.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2015)
Article
Energy & Fuels
Amirmasoud Kalantari-Dahaghi et al.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2015)
Article
Energy & Fuels
Azeem Ghani et al.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2015)
Article
Energy & Fuels
Michael L. Godec et al.
Review
Thermodynamics
Takeshi Kuramochi et al.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2012)
Article
Energy & Fuels
Christine Ehlig-Economides et al.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2010)
Article
Thermodynamics
S Bachu
ENERGY CONVERSION AND MANAGEMENT
(2002)
