Energy & Fuels最新文献

{"title":"Kinetic Study and CO2 Separation Assessment from a CH4/CO2 Gas Mixture in the Presence of Multiwall Carbon Nanotubes","authors":"Omar Nashed*,&nbsp;Behzad Partoon,&nbsp;Bhajan Lal*,&nbsp;Khalik M. Sabil,&nbsp;Juma Al-Arabi and Cornelius Borecho Bavoh,&nbsp;","doi":"10.1021/acs.energyfuels.4c0412510.1021/acs.energyfuels.4c04125","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04125https://doi.org/10.1021/acs.energyfuels.4c04125","url":null,"abstract":"<p >The slow hydrate formation kinetics coupled with limited storage capacity restrict its practical application for gas separation and transportation. This challenge can be addressed by employing nanomaterials as kinetic promoters to enhance the gas hydrate formation process. In this study, the impact of multiwall carbon nanotubes (MWCNT), hydroxylated multiwall carbon nanotubes (OH-MWCNT), and carboxylated multiwall carbon nanotubes (COOH-MWCNT) on the mixture of CH₄ + CO₂ (70:30) hydrate formation kinetics and CO₂ separation is experimentally evaluated. The concentration of nanomaterials is in the range of 0.01–0.05 wt % dispersed in 0.03 wt % SDS solutions or pure water. The results showed that at a pressure of 4.0 MPa and a temperature of 274.15 K, carbon nanotubes slightly enhance the induction time and initial rate of gas consumption. In addition, a successful CO₂ separation with a separation factor within the range of 2.9–3.4 was achieved, and the CO₂ recovery factor was about 65% from the CH₄ + CO₂ (70:30) gas mixture. The separation performance was enhanced by COOH-MWCNT when compared to the other samples. A surfactant-free COOH-MWCNT nanofluid demonstrated higher selectivity to CO₂ when compared to a surfactant aqueous solution at concentrations of 0.03 wt %.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22986–22996 22986–22996"},"PeriodicalIF":5.2,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Ordered Mesoporous Oxides in Plasma-Assisted Ammonia Synthesis","authors":"Sonia E. Arumuganainar,&nbsp;Stavroula Sartzetakis,&nbsp;Cole W. Hullfish,&nbsp;Bruce E. Koel and Michele L. Sarazen*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0327010.1021/acs.energyfuels.4c03270","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c03270https://doi.org/10.1021/acs.energyfuels.4c03270","url":null,"abstract":"<p >Widespread implementation of dielectric barrier discharge (DBD)-assisted NH₃ synthesis, a nascent technology operating under sustainable, ambient conditions, is hindered by low energy yields due to, in part, poor fundamental understanding. Porous oxides used to support metal nanoparticle catalysts have shown significant energy yield contributions for DBD-assisted NH₃ synthesis even without metal. Using an AC-powered, coaxial, single-stage reactor at 16 kV with equimolar (N₂/H₂) feed, we measured NH₃ synthesis rates in the presence of different nonordered oxides, ordered SiO₂ structures (SBA-15 and MCM-41), and ordered Al-incorporated analogues (γ-Al₂O₃-coated with varying Al-loadings and Al-substitution, respectively: Al₂O₃-SBA-15 and Al-MCM-41). We systematically quantified NH₃ energy yield dependence on pore structures and material identities (i.e., ordered pores and Al incorporation) known to facilitate higher DBD-assisted NH₃ synthesis rates. SBA-15 displayed a higher steady-state energy yield than MCM-41, indicating that framework type is a crucial factor, with both ordered porous systems outperforming fumed SiO₂. 10 wt % Al maximized in situ NH₃ uptake among the various Al loadings, exhibiting a higher steady-state energy yield and similar power to SBA-15. However, Al-MCM-41 had a similar steady-state energy yield and lower power than MCM-41, likely due to the extended γ-Al₂O₃ surface that has a dielectric constant higher than that of SiO₂. Both Al-incorporated analogues benefit from surface acid sites that can adsorb NH₃ in situ, resulting in higher overall NH₃ energy yields than that of their parent ordered SiO₂. Al₂O₃-SBA-15 shielded more NH₃ than Al-MCM-41, likely due to a higher acid site density than the acid site identity. Thus, Al incorporation via γ-Al₂O₃ coating more successfully improves the NH₃ energy yield; together with the high-performing ordered framework, these analogues are potential metal catalyst supports with promising energy yields for DBD-assisted synthesis of NH₃ and other chemicals.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"23150–23166 23150–23166"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat Transfer Characteristics of Borehole Briquette Samples in Liquid CO2 High-Temperature Steam Synergistic Impact Process","authors":"Lei Qin*,&nbsp;Weikai Wang,&nbsp;Haifei Lin,&nbsp;Shugang Li,&nbsp;Hui Wang,&nbsp;Jiawei Li and Meiling Xiong,&nbsp;","doi":"10.1021/acs.energyfuels.4c0441610.1021/acs.energyfuels.4c04416","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04416https://doi.org/10.1021/acs.energyfuels.4c04416","url":null,"abstract":"<p >To enhance the effective range of thermally induced fracturing in coal under alternating temperature effects using liquid CO₂ fracturing technology, this paper proposes an improved technique based on traditional liquid CO₂ fracturing: the liquid CO₂ high-temperature steam synergistic fracturing permeability enhancement technology. This study employs an infrared thermal imaging detector to investigate the temperature evolution characteristics of borehole-like coal bodies during thermal shock processes. It quantitatively analyzes the temperature evolution patterns in the <i>x</i>, <i>y</i>, and <i>z</i> directions in the borehole wall and bottom regions during the liquid CO₂ high-temperature steam impact. The results show that during thermal shock, the temperature diffusion in dry coal samples is concentrated and intense, whereas in saturated coal samples, it is uniform and slow. This indicates that fissure water absorbs and stores heat, promoting more uniform temperature diffusion, but also obstructing the migration channels of low-temperature media, thereby reducing the efficiency of temperature diffusion. According to the temperature evolution curves in the <i>x</i>, <i>y</i>, and <i>z</i> directions in the borehole wall and bottom regions, it is found that the temperature of the coal body is negatively correlated with the distance to the impact point. During cold shock, the low-temperature field diffusion is concentrated below the central axis of the coal body, while during heat shock, the high-temperature field is concentrated above the axis. The temperature evolution amplitude is greatest in the middle region between the liquid CO₂ and high-temperature steam injection points, indicating that the migration direction of thermal media significantly affects temperature diffusion in the coal body. This research provides a theoretical basis for the study of liquid CO₂ high-temperature steam synergistic fracturing technology in coal seams.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22787–22803 22787–22803"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bubble Evolution and Its Effects on Methane Hydrate Formation in a Restricted Space","authors":"Zhenchao Li,&nbsp;Wenjiu Cai,&nbsp;Yajun Deng*,&nbsp;Shihang Rao,&nbsp;Qian Zhang and Hailong Lu*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0468010.1021/acs.energyfuels.4c04680","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04680https://doi.org/10.1021/acs.energyfuels.4c04680","url":null,"abstract":"<p >Based on the in situ observation of methane hydrate formation in restricted spaces by confocal Raman imaging microscopy, a bubble intrusion mechanism is proposed. Hydrates are found to form both at the gas–water–solid triple-phase contact line and at the gas–water interface. Hydrates at the triple-phase contact line can form capillary channels with solid surfaces. The formed capillary channels can force the water inside the droplet to diffuse outward, leading to shrinkage of the droplet edge and generation of gas bubbles inside the droplet. Hydrates can then rapidly form at the bubble–solution interface. With the method of Raman imaging, gas channels are found in the interfacial hydrates, acting as bridges connecting bubbles and the surrounding solution. Through these gas channels, methane gas can dissolve rapidly into the solution in the droplets, thereby promoting the formation of hydrates in the droplets.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22876–22884 22876–22884"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Amphiphilicity in Low-Dosage Biodegradable Inhibitors for Clathrate Hydrate: A Kinetic Study of Inhibition by Highly Branched Poly(l-lysine)s","authors":"Ying Xu,&nbsp;Dong Wang,&nbsp;Xin Wang and Jian Dong*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0411210.1021/acs.energyfuels.4c04112","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04112https://doi.org/10.1021/acs.energyfuels.4c04112","url":null,"abstract":"<p >The rapid growth of natural gas clathrate hydrate has been a significant safety hazard in off-shore natural gas drilling and gas transport. Alleviation of hydrate formation can be achieved by applying low-dosage hydrate inhibitors of polymers during operation. In order to combine the advantages of high adsorption potential and environmental friendliness, we study the kinetics of hydrate inhibition of amphiphilic highly branched poly(<span>l</span>-lysine) (PLL) by NMR relaxometry. The introduction of <i>n</i>-butyl and cyclohexyl groups in PLLs was found to be significantly effective in prolonging the induction times of sII clathrate hydrates. Key physical–chemical factors involved in the mechanism previously proposed by molecular dynamics simulations can be clarified by NMR relaxometry. Induction times for the formation of hydrate are associated with the interfacial water amount but are not related to the hydrogen bonding strength or dynamics of the free water component. The amphiphilic PLLs in the interface interact with the hydrate surfaces through their hydration shell. Analysis of the molecular motion and freezing kinetics of water in the fluid before and during hydrate formation reveals that the polymers can reduce the rates of hydrate growth from the free water by a factor of 5 to 10. A further significant decrease in the growth rates from small hydrate particles by a factor of 10 to 2600 was observed in the presence of the amphiphilic PLLs with <i>n</i>-butyl and cyclohexyl groups. The distinct crystal growth kinetics in the heterogeneous interface are influenced by the terminal alkyl groups of the polymers, with changing growth geometry or crystal shapes and consistent with the interfacial Gibbs–Thomson effect. A high Avrami index value of the isothermal crystal growth and nonfreezable water amount favors a long induction time. The PLL inhibitors adsorb to the hydrate surface and act via an interfacial mechanism.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22759–22774 22759–22774"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facile Synthesis of Graphite-SiOx/C Core–Shell Composite Anode for High Stable Lithium-Ion Batteries","authors":"Yulin Zhang,&nbsp;Helang Huang,&nbsp;Xuanning Chen,&nbsp;Tian Gao,&nbsp;Junhui Li,&nbsp;Yao Yao*,&nbsp;Zhenming Xu,&nbsp;Mingbo Zheng* and Zhenhui Liu*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0472310.1021/acs.energyfuels.4c04723","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04723https://doi.org/10.1021/acs.energyfuels.4c04723","url":null,"abstract":"<p >Graphite-silicon composite anodes have been regarded as some of the most practical next-generation anode materials for commercialization. However, poor interfacial contact between Si and graphite and serious volume expansion of Si always lead to even worse electrochemical performances than the pure graphite anode. Herein, we report a stable graphite-SiO_<i>x</i>/C composite anode (Gr@SiO_<i>x</i>/C) with a homogeneous SiO_<i>x</i>/C coating layer on the surface of graphite via a facile sol–gel process and subsequent pyrolysis. SiO_<i>x</i>/C can enhance the overall capacity of the composite anode while possessing a low volume expansion, which is beneficial to maintaining structural stability. Furthermore, the homogeneous distribution of SiO_<i>x</i> and C frameworks also enables rapid and stable Li⁺/electron transport toward the graphite inner core. As a result, the as-prepared Gr@SiO_<i>x</i>/C composite anode exhibits excellent cycling stability and rate capability with more than twice the capacity of graphite at 1 A g^–1. A full cell assembled with NCM811 cathode delivers a high stable cycling performance with a capacity retention exceeding 90% after 300 cycles and an average Coulomb efficiency of 99.24%. This work is expected to provide a reference for the rational design of graphite-silicon composite anodes in lithium-ion batteries.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"23140–23149 23140–23149"},"PeriodicalIF":5.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence, Origin, and Infill Modification Effects of Minerals in Deep Coals in the Ordos Basin, China","authors":"Zhanwei Li,&nbsp;Shida Chen*,&nbsp;Dazhen Tang and Kun Hou,&nbsp;","doi":"10.1021/acs.energyfuels.4c0461510.1021/acs.energyfuels.4c04615","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04615https://doi.org/10.1021/acs.energyfuels.4c04615","url":null,"abstract":"<p >Minerals in deep coals contribute to coal reservoir heterogeneity and influence coalbed methane enrichment by modifying the physical properties of the pore-fracture system. This study has used multiple qualitative and quantitative analytical techniques to characterize pore-fracture system and occurrences of minerals in deep coals in the Daji block, Ordos Basin. The deep coals with high rank and medium-low ash yield show a complex dual pore-fracture structure with obvious cross-scale effects. The pore-fracture system in deep coals is of complex genesis and diverse morphology, and open fractures of varying scales may communicate pores to form complex pore-fracture networks. Mineral phases in deep coals consist mainly of kaolinite, calcite, and pyrite, with minor occurrences of other minerals (quartz, Illite, siderite, collophanite, bauxite minerals, and halite). The modes of mineral occurrence, including syngenetic and epigenetic origins, depended on the mineralogical genesis associated with coal-forming process. Different mineral phases and infilling modes modified the pore-fracture system to varying extents. Overall, mineral occurrences in the deep coal seams have reduced porosity but increased permeability to some extent. Higher clay and carbonate mineral contents is collectively associated with lower porosity; however, higher clay and sulfide mineral contents is collectively associated with higher permeability.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22885–22903 22885–22903"},"PeriodicalIF":5.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Investigation and Kinetic Model of CO2 + C3H8 Hydrate Formation in Porous Media for Seawater Desalination","authors":"Tianbiao He*,&nbsp;Hao Xu,&nbsp;Xialian Xing and Ning Mao,&nbsp;","doi":"10.1021/acs.energyfuels.4c0407810.1021/acs.energyfuels.4c04078","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04078https://doi.org/10.1021/acs.energyfuels.4c04078","url":null,"abstract":"<p >This study seeks to propel the efficacy and predictive accuracy of kinetic models in hydrate-based desalination, a field in which the rate of hydrate formation is a critical determinant of its industrial feasibility and optimization. This study investigates the impact of introducing varying media, quartz sand, nanocopper, and graphite, into the formation of CO₂ + C₃H₈ hydrates in salt solutions. The findings indicate that medium-sized quartz sand can adversely affect gas uptake, with the degree of impact being contingent on the particle size and filling height. Contrarily, the incorporation of nanocopper and graphite notably expedites hydrate formation. Notably, the reaction rate does not exhibit a simple inverse relationship with the particle size; instead, an optimized median size provides the best outcomes. In particular, using copper nanoparticles ranging from 10 to 30 nm and graphite particles around 6.5 μm, both at a concentration of 0.10 wt %, yielded significant increases of 25.89 and 26.53% in the resulting water-to-hydrate conversion to 32.77 and 32.94%, respectively, at the beginning of 1 h compared to a baseline saltwater solution. This study also introduces a sophisticated kinetic model grounded in experimental data designed to predict the rates of hydrate formation in seawater and porous media with greater precision. The model integrates the dynamics among the chemical potential difference, intrinsic formation rate, and heat and mass transfer limitations. Validation under various conditions confirms the model’s robustness and utility, substantially advancing the ability to refine and anticipate hydrate-based desalination process performance.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"22959–22973 22959–22973"},"PeriodicalIF":5.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogen and Carbon Dioxide Kinetic Adsorption and Diffusion Behavior into Organic-Rich Shale: Implications of Mineralogy and Organic Content","authors":"Amer Alanazi*,&nbsp;Hussein Abid,&nbsp;Saleh A. Bawazeer,&nbsp;Norah Aljeban,&nbsp;Israa S. Abu-Mahfouz,&nbsp;Alireza Keshavarz,&nbsp;Stefan Iglauer and Hussein Hoteit,&nbsp;","doi":"10.1021/acs.energyfuels.4c0440510.1021/acs.energyfuels.4c04405","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04405https://doi.org/10.1021/acs.energyfuels.4c04405","url":null,"abstract":"<p >Geological storage of hydrogen (GSH) is a pivotal technology for advancing an industrial-scale hydrogen economy. Shale formations, known for their impermeable sealing and abundance, offer promising potential for secure GSH applications. However, the complex mineralogy and organic content of shale necessitate a detailed investigation. This study examines the potential of organic-rich shale samples from Jordanian oil source rocks for hydrogen (H₂) storage and carbon dioxide (CO₂) sequestration. Adsorption kinetics were measured at two different temperatures (303 and 333 K) and pressures (15 and 45 bar) using a volumetric experimental approach. Common mathematical models were applied to evaluate the adsorption data and calculate the diffusion coefficients. The results indicate that H₂ adsorption on shale surfaces occurs at significantly lower rates than CO₂, with H₂ being adsorbed approximately 2–7 times less as pressure increases from 0.1 to 68 bar. Both gases show increased adsorption with rising pressure and decreased adsorption at higher temperatures. The superior adsorption capacity of CO₂ highlights its potential as a cushion gas, facilitating the preferential in situ separation of H₂ during extraction processes. This study also uses two distinct shale samples to explore the impact of varying total organic carbon (TOC) and calcite contents on gas adsorption capacity. The diffusion coefficients for H₂ were found to be approximately 10 times higher than those for CO₂, offering critical insights into the dynamics of H₂ storage and retrieval in geological formations. The findings provide insights into H₂ storage and retrieval in geological formations and enhance the feasibility of utilizing shale formations as reliable seals or storage media for H₂.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 23","pages":"23009–23024 23009–23024"},"PeriodicalIF":5.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.energyfuels.4c04405","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Permeability Prediction and Rock Typing for Unconventional Reservoirs Using High-Pressure Mercury Intrusion and Fractal Analysis","authors":"Fuyong Wang*,&nbsp;Haojie Hua,&nbsp;Lu Wang and Weiyao Zhu,&nbsp;","doi":"10.1021/acs.energyfuels.4c0312310.1021/acs.energyfuels.4c03123","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c03123https://doi.org/10.1021/acs.energyfuels.4c03123","url":null,"abstract":"<p >Permeability is a crucial parameter for characterizing unconventional reservoirs, yet predicting it in shale oil reservoirs remains challenging due to their extreme heterogeneity and the multifactorial influences on permeability. In this study, a novel analytical permeability prediction model based on fractal theory is provided. This model integrates porosity, maximum pore radius, the fractal dimension of pore size distribution, and tortuosity. The model is validated using tight core samples from shale reservoirs in the Jimsar Sag, Junggar Basin, NW China, with data obtained from high-pressure mercury intrusion measurements. Furthermore, a rock typing method based on a maximum pore radius is introduced, which enhances the accuracy of permeability predictions across different reservoir types, particularly when the model is simplified. Comparative analysis with classical models, including Pittman, Swanson, and Winland, demonstrates that the simplified model consistently provides a higher prediction accuracy for reservoir permeability.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22000–22011 22000–22011"},"PeriodicalIF":5.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}