Greenhouse Gases: Science and Technology最新文献_第5页

Amine-Functionalized Radiation-Induced Glycidyl Methacrylate–Grafted Polyamide 6 for CO2 Capture Using Pressure Swing Adsorption 氨基功能化辐射诱导甲基丙烯酸缩水甘油酯接枝聚酰胺6变压吸附CO2捕集

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-04-23 Epub Date: 2025-12-10 DOI: 10.1002/ghg.70007

Jasmine Kaur, Sudhir Kumar Singh, Raj Kumar Gupta, Haripada Bhunia, K. A. Dubey, Priya Maheshwari, C. V. Chaudhari

{"title":"Amine-Functionalized Radiation-Induced Glycidyl Methacrylate–Grafted Polyamide 6 for CO2 Capture Using Pressure Swing Adsorption","authors":"Jasmine Kaur, Sudhir Kumar Singh, Raj Kumar Gupta, Haripada Bhunia, K. A. Dubey, Priya Maheshwari, C. V. Chaudhari","doi":"10.1002/ghg.70007","DOIUrl":"https://doi.org/10.1002/ghg.70007","url":null,"abstract":"<div>\u0000 \u0000 This study presents a method for the preparation of polymeric adsorbents which involves the simultaneous radiation-induced grafting of glycidyl methacrylate onto Polyamide 6 fibres (GMA-g-PA6), followed by the functionalization of the grafted fibres with ethanolamine. The factors, like monomer concentration and radiation dose, which affect the degree of grafting are studied. The prepared polymeric adsorbents were characterized using Fourier-transform infrared (FTIR), field emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The adsorbents were evaluated for CO2 adsorption from a gas mixture of N2 and CO2 containing 5%–15% CO2, using pressure swing adsorption at four different (1, 3, 5 and 7 bar) pressures. The sample with the highest degree of amination has shown maximum adsorption capacity 1.64 mmol g−1 at 7 bar for 15% CO2 concentration at 20°C. The CO2 adsorption on the prepared adsorbents followed a fractional-order kinetic model. The experimental data aligned effectively with the Freundlich model, reflecting the non-uniform nature of the adsorbent surface. The regeneration ability of the adsorbent was evaluated over five adsorption–desorption cycles, demonstrating good stability with minimal loss in adsorption capacity. 2025 Society of Chemical Industry and John Wiley & Sons, Ltd.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 2","pages":"265-283"},"PeriodicalIF":2.8,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Simulated CO2 Leakage on Soil Microbial Communities in a Greenhouse Experiment 模拟CO2泄漏对温室土壤微生物群落的影响

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-04-23 Epub Date: 2025-11-19 DOI: 10.1002/ghg.2390

Daegeun Ko, You Jin Kim, Ana Mitcov, Gayoung Yoo, Haegeun Chung

{"title":"Effects of Simulated CO2 Leakage on Soil Microbial Communities in a Greenhouse Experiment","authors":"Daegeun Ko, You Jin Kim, Ana Mitcov, Gayoung Yoo, Haegeun Chung","doi":"10.1002/ghg.2390","DOIUrl":"https://doi.org/10.1002/ghg.2390","url":null,"abstract":"<div>\u0000 \u0000 Carbon capture and storage (CCS) is a key technology for mitigating global climate change, yet the environmental risks of potential CO2 leakage from storage sites require thorough evaluation. The short-term impacts of simulated CO2 leakage on soil microbial communities in a controlled greenhouse experiment was investigated in this study. High-purity CO2 was injected at 100 mL min−1 for 30 days into mesocosms planted with maize (Zea mays). The CO2 injection significantly increased soil CO2 concentrations (mean 20.3% at 5 cm, 42.9% at 15 cm) and depleted O2 concentrations. Elevated soil CO2 inhibited plant growth and nutrient uptake, leading to a significant accumulation of inorganic nitrogen (ammonium and nitrate) in the soils. This nutrient shift corresponded with a significant decrease in N-acetyl-glucosaminidase activity, an enzyme mediating microbial nitrogen acquisition. Although bacterial alpha diversity (richness and evenness) remained unchanged, the community composition was significantly altered. The relative abundance of Proteobacteria decreased, whereas that of Saccharibacteria_TM7 increased in CO2-injected soils. Furthermore, the abundance of important nitrogen-fixing families, including Bradyrhizobiaceae and Phyllobacteriaceae, was significantly reduced. These findings indicate that short-term CO2 leakage indirectly alters soil microbial communities by inhibiting plant growth, which subsequently changes soil nutrient availability. Monitoring these plant–microbe interactions is therefore important for the environmental assessment of CCS sites.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 2","pages":"212-225"},"PeriodicalIF":2.8,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148086394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies 对行业的呼吁：挖掘地下存储技术的协同效应

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-04-23 Epub Date: 2025-12-04 DOI: 10.1111/ghg.70002

Julien Mouli-Castillo, Hanna M. Breunig, Curtis M. Oldenburg

{"title":"A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies","authors":"Julien Mouli-Castillo, Hanna M. Breunig, Curtis M. Oldenburg","doi":"10.1111/ghg.70002","DOIUrl":"https://doi.org/10.1111/ghg.70002","url":null,"abstract":"Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand. Yet prevailing design codes, investment models, and licensing regimes still assess each technology in isolation, discouraging developers from sharing pore space, surface infrastructure or access to a wider market. This article contends that co‑locating two or more SSTs within a single reservoir (or porous geological storage system) can, under the right circumstances, unlock bankable advantages by extending asset life, smoothing cash flow and lowering abandonment cost. We highlight the potential benefits of synergies based on historical evidence, field tests and modelling studies. Initially, stakeholders should focus on single-site investigations and on modelling subsurface and surface infrastructure to systematically assess the long-term benefits and sustainability of synergistic SST operations. This approach is crucial for future-proofing SST sites and adapting to evolving energy landscapes, offering a resilient and economically viable path forward for the energy industry.","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 2","pages":"187-195"},"PeriodicalIF":2.8,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ghg.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148066010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and Application of a Simplified Method for Preliminary Assessment of Enhanced Oil Recovery and CO2 Geological Storage in Petroleum Reservoirs 油藏提高采收率及CO2地质储层初步评价简化方法的开发与应用

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-04-23 Epub Date: 2025-12-04 DOI: 10.1002/ghg.70009

Nívia Morgana de Oliveira, Paulo Couto, Alexandre Szklo

{"title":"Development and Application of a Simplified Method for Preliminary Assessment of Enhanced Oil Recovery and CO2 Geological Storage in Petroleum Reservoirs","authors":"Nívia Morgana de Oliveira, Paulo Couto, Alexandre Szklo","doi":"10.1002/ghg.70009","DOIUrl":"https://doi.org/10.1002/ghg.70009","url":null,"abstract":"Geologic carbon storage in depleted oil and gas reservoirs is a key CO2 mitigation strategy, utilizing existing infrastructure such as injection wells and pipelines, while capitalizing on well-characterized subsurface properties. This article introduces a versatile methodology designed to estimate critical parameters, including the number of wells needed for CO2 storage, recoverable oil volumes, the CO2 content in produced oil, maximum storage capacity, and additional recovery time. This approach is based on established correlations and literature data, providing a simplified cost-effective preliminary assessment prior to investing resources (labor and capital) into detailed site-specific studies, which is particularly advantageous in underexplored or emerging basins. The methodology has been validated against field data for a real mature oil field in Brazil, demonstrating its broad applicability and yielding relatively accurate predictions for key performance indicators. This practical tool facilitates the screening of reservoirs worldwide and supports decision-making for CO2-enhanced oil recovery (CO2-EOR) and long-term carbon sequestration initiatives. 2025 Society of Chemical Industry and John Wiley & Sons, Ltd.","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 2","pages":"238-252"},"PeriodicalIF":2.8,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148066006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive Evaluation of Fault Sealing for CO2 Geological Storage in Low-Permeability Reservoirs 低渗透油藏断层封闭性对CO2地质封存的综合评价

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-04-23 Epub Date: 2025-12-10 DOI: 10.1002/ghg.70006

Kun Li, Bohu Zhang, Jinfeng Wu, Zhe Wang, Yu Ni, Ping Wen

{"title":"Comprehensive Evaluation of Fault Sealing for CO2 Geological Storage in Low-Permeability Reservoirs","authors":"Kun Li, Bohu Zhang, Jinfeng Wu, Zhe Wang, Yu Ni, Ping Wen","doi":"10.1002/ghg.70006","DOIUrl":"https://doi.org/10.1002/ghg.70006","url":null,"abstract":"<div>\u0000 \u0000 CO2 storage in low-permeability reservoirs is a key technology for achieving the strategic goals of carbon peak and carbon neutrality. The evaluation of the sealing performance of the geological storage body is an important measure to ensure the safe storage of CO2. The injection of CO2 into the reservoir may cause fault instability within the geological storage body, leading to CO2 leakage. Therefore, it is particularly important to assess the fault sealing integrity for CO2 storage. This study integrates geological and mechanical theories to establish a multiparameter evaluation methodology for fault sealing in CO2 storage within low-permeability reservoirs. By utilizing seismic interpretation data, laboratory experiments, and stress analysis via a three-dimensional geomechanical model, the methodology achieves a quantitative assessment of fault sealing performance. This evaluation system comprehensively considers both the lateral and vertical sealing of faults, integrated with mechanical analysis. It enables a comprehensive evaluation of fault sealing under CO2 storage conditions. The research indicates that, from a geological perspective, the fault sealing integrity of the G block is predominantly low to medium risk, and the overall sealing performance is favorable. In terms of mechanical integrity, the fault sealing safety factor is high. The fault is resistant to tensile rupture and shear slip, and the sealing integrity is good. The multiparameter evaluation method proposed in this article fully incorporates the influence of both geological and mechanical factors on fault sealing in CO2 storage, providing a scientific basis for the evaluation of geological seal integrity and the prevention and control of leakage risks in CO2 storage projects.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 2","pages":"253-264"},"PeriodicalIF":2.8,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Public Perceptions and Engagement for Carbon Capture, Utilization, and Storage: Literature Review With a Case Study of Utah, USA 公众对碳捕获、利用和封存的认知和参与：以美国犹他州为例的文献综述

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-02-23 Epub Date: 2025-10-09 DOI: 10.1002/ghg.2381

Ting Xiao, Erin Middleton, Omar Bakelli, Sophia Cheng, Danyang Zhu, Lei Xu, Brian McPherson

{"title":"Public Perceptions and Engagement for Carbon Capture, Utilization, and Storage: Literature Review With a Case Study of Utah, USA","authors":"Ting Xiao, Erin Middleton, Omar Bakelli, Sophia Cheng, Danyang Zhu, Lei Xu, Brian McPherson","doi":"10.1002/ghg.2381","DOIUrl":"https://doi.org/10.1002/ghg.2381","url":null,"abstract":"Carbon dioxide capture, utilization, and storage (CCUS) is a potential key to mitigating anthropogenic CO2 emissions and associated impacts on global climate change. Successful CCUS deployment hinges on both technological advancements and public support. This article examines public perception research on CCUS over the last 25 years, finding that although awareness and acceptance have slightly increased, overall awareness remains low (less than 50%). No clear relationship is found between public awareness and support from these studies. Public acceptance for CCUS deployment depends on perceived benefits and risks and trust in project developers and authorities. Effective public engagement requires diverse approaches for communities and stakeholders, especially at an early stage in target areas. The media plays a critical role in shaping and evolving public attitudes about CCUS. Newspaper coverage in Utah, USA, was selected as a case study. Utah's coal and energy industries are vital to its economy, with CCUS seen crucial for reducing CO2 emissions. We identified and reviewed approximately 200 newspaper reports on carbon capture and geological storage since the early 21st century. Storylines such as “saving Utah's coal industry” and “key element of energy transition” were frequently used. Technical, economic, and political frames were mostly discussed with neutral to positive tones. To further engage stakeholders and the public, building relationships and trust in an early stage through a variety of communication strategies may be necessary. A cross-sector systemic coordination mechanism, highlighting stakeholder engagement, education, and mutual learning, should be established.","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"125-157"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Co–Cu Bimetallic–Modified ATP Catalysts for Efficient and Low-Energy CO2 Capture Co-Cu双金属修饰ATP催化剂高效低能捕集CO2

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-02-23 Epub Date: 2025-11-08 DOI: 10.1002/ghg.2391

Zhengxiong Jiang, Zhitao Han

{"title":"Co–Cu Bimetallic–Modified ATP Catalysts for Efficient and Low-Energy CO2 Capture","authors":"Zhengxiong Jiang, Zhitao Han","doi":"10.1002/ghg.2391","DOIUrl":"10.1002/ghg.2391","url":null,"abstract":"<div>\u0000 \u0000 The high energy consumption during regeneration of CO2-rich amine solutions remains a major challenge for amine-based carbon capture. However, the addition of solid–acid catalyst accelerates the slow CO2 desorption process while reducing the energy consumption for regeneration of the amine-rich solution. Herein, we developed Co and Cu bimetallic–modified attapulgite (ATP) solid–acid catalysts via impregnation to enable energy-efficient CO2 desorption. The optimized Co2–Cu1/ATP catalyst exhibited exceptional performance in regenerating CO2-rich monoethanolamine (MEA) solution (5 M) at 90°C, achieving a 171% increase in CO2 desorption rate, a 287% enhancement in CO2 desorption amount, and a 75.6% reduction in regeneration heat duty compared to non-catalytic processes. Comprehensive characterization (x-ray diffraction [XRD], Fourier transform infrared [FT-IR], NH3-TPD, N2 adsorption–desorption, scanning electron microscopy [SEM]/EDS, x-ray photoelectron spectroscopy [XPS]) revealed that the synergy between Co3O4 and CuO nanoparticles on ATP generated abundant strong acid sites and optimized mesoporous structure, facilitating proton transfer and carbamate decomposition. FT-IR analysis confirmed the catalytic accelerating effect of catalysts on the conversion of intermediates. The catalyst maintained 83% activity after eight regeneration cycles due to robust Co–O–Si/Cu–O–Si metal-support interactions. This work provides a cost-effective strategy for low-energy carbon capture, advancing industrial deployment of carbon capture, utilization, and storage (CCUS) technology.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"62-74"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of CaO–Ni Blends for Enhanced CO2 Adsorption: Aspen Plus Simulation Study CaO-Ni共混物增强CO2吸附性能的优化：Aspen Plus模拟研究

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-02-23 Epub Date: 2025-10-30 DOI: 10.1002/ghg.2385

Soomro Sarmad, Dennis Lu, Zhenkun Sun, Muhammad Mubashir, Abid Ali, Lunbo Duan

{"title":"Optimization of CaO–Ni Blends for Enhanced CO2 Adsorption: Aspen Plus Simulation Study","authors":"Soomro Sarmad, Dennis Lu, Zhenkun Sun, Muhammad Mubashir, Abid Ali, Lunbo Duan","doi":"10.1002/ghg.2385","DOIUrl":"10.1002/ghg.2385","url":null,"abstract":"<div>\u0000 \u0000 Carbon capture and storage (CCS) technologies are essential for mitigating global CO2 emissions, yet challenges such as high energy consumption and material degradation hinder their widespread adoption. This study investigates the integration of nickel (Ni) into calcium oxide (CaO) sorbents to enhance CO2 capture efficiency by leveraging Ni's catalytic properties to optimize carbonation kinetics. Aspen Plus simulations were employed to evaluate the effects of varying Ni concentrations (5–25 wt%) on reaction rates, activation energy, and carbonation efficiency. The results revealed that adding Ni considerably reduced the activation energy from 178 kJ/mol (pure CaO) to 70–90 kJ/mol. The maximum catalytic efficiency was achieved at 20 wt% Ni. At this concentration, the rate of the carbonation reaction increased exponentially, leading to considerable improvements in CO2 collection and CaCO3 formation rates. Sensitivity analysis identified key operational parameters, such as temperature, CO2 partial pressure, and flow rates, for improving process optimization in industrial settings. In comparison to typical CaO-based sorbents, Ni–CaO blends demonstrated higher catalytic efficiency and lower energy needs, addressing key challenges in CCS systems. This work distinguishes itself from previous CaO stability studies by integrating process optimization and kinetic modeling, resulting in practical insights for the development of energy-efficient CO2 capture technologies. Future research ought to explore the long-term stability of Ni–CaO sorbents and incorporate renewable energy sources to increase the sustainability and economic feasibility of CCS systems.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"33-45"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Two-Phase Layered Model for Simulating Leakage Along Faults Considering the Blocking Effect of CO2 Exsolution 考虑CO2析出封堵效应的两相分层断层泄漏模拟模型

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-02-23 Epub Date: 2025-10-28 DOI: 10.1002/ghg.2384

Wang Jixing, Li Yang, Lin Qianguo, Xue Zhaojie, Ge Zhenxing, Wang Rui

{"title":"A Two-Phase Layered Model for Simulating Leakage Along Faults Considering the Blocking Effect of CO2 Exsolution","authors":"Wang Jixing, Li Yang, Lin Qianguo, Xue Zhaojie, Ge Zhenxing, Wang Rui","doi":"10.1002/ghg.2384","DOIUrl":"https://doi.org/10.1002/ghg.2384","url":null,"abstract":"<div>\u0000 \u0000 CO2 geological storage is associated with the risk of faults activation and CO2 leakage along the activated faults. During the leakage, pressure decline along the fault causes CO2 to exsolve from formation water, forming a lower aqueous phase with dissolved CO2 and an upper two-phase zone with CO2 bubbles dispersed in water. The CO2 bubbles in this zone significantly reduce fluid mobility, lowering leakage rates. Existing leakage models neglecting such CO2 exsolution effect overestimate leakage rates and risks. To address this limitation, this study improves the calculation method for CO2 gas-phase exsolution location by establishing a pressure distribution equation within faults and deriving an analytical solution for the exsolution location using monitorable fault inlet pressure; a two-phase layered flow model is then developed by incorporating two-phase relative permeability which can reflect the flow resistance effects after CO2 exsolution. The application of the developed model to a CO2 leakage case in an oil field located at Ordos Basin, China, demonstrates that the model can reflect the effect of gas-phase CO2 exsolution along faults. Quantitative analysis shows a 67%–75% reduction in CO2 leakage rate simulated by the layered model compared to non-layered models, indicating that the developed model can address the influence of CO2 exsolution on blocking leakage fluid flow and thus calculate the leakage amount more accurately. 2025 Society of Chemical Industry and John Wiley & Sons, Ltd.\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"100-110"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2.8 4区环境科学与生态学

Greenhouse Gases: Science and Technology Pub Date : 2026-02-23

引用次数: 0