Petroleum Research最新文献

{"title":"Morphometry, bathymetry, gravity analyses and active tectonics of the petroliferous Gulf of Mannar in the Indian sector","authors":"Kutubuddin Ansari ,&nbsp;Mery Biswas ,&nbsp;Adrija Raha ,&nbsp;M.L. Shilpashree ,&nbsp;Soumyajit Mukherjee","doi":"10.1016/j.ptlrs.2025.03.003","DOIUrl":"10.1016/j.ptlrs.2025.03.003","url":null,"abstract":"<div><div>The Gulf of Mannar has been producing natural gas in the Sri Lankan portion. This indicates that a detail geoscientific study is to be undertaken from the Indian section of the gulf, which can have a far-reaching implication in the Indian petroleum geoscience. In this work, morphometric and gravity studies were made from the gulf/basin near the onshore area, and bathymetric studies from the offshore portion of the Mannar basin within the Indian sector. Five watersheds were delineated based on study of eight geomorphic parameters on remote sensing images form the onshore area. Out of these watersheds 4 and 5 are found to be presently tectonically most active. Well-bore stability issue is to be considered while drilling these portions in future. We further prepared a regional contour map for the offshore study area, analysed the free air gravity data from the onshore area, and deduced the First Vertical Derivative (FVD) and Tilt Derivative Ratio (TDR). Bathymetric height gradually increases along the north-south trend from the coast region of the study area towards the central region, while the gravity magnitudes display a very sharp gradient (around 150 mGal). The gravity anomaly shows positive values at continental shelf (0–160 mGal), which includes parts of watersheds 1 and 3 and attains negative magnitude (up to −20 mGal) towards the basin area. Negative gravity anomaly in the offshore area may indicate presence of hydrocarbon but more studies are needed for confirmation. Apparently, almost a negative correlation (except watershed 1) between surface elevation and free air gravity magnitudes has been found.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 667-678"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Achieving low-carbon future through CO2 storage: A comprehensive review of global projects and policies","authors":"Malik Muhammad Ali Awan ,&nbsp;Farzain Ud Din Kirmani","doi":"10.1016/j.ptlrs.2025.04.004","DOIUrl":"10.1016/j.ptlrs.2025.04.004","url":null,"abstract":"<div><div>Climate change mitigation efforts require innovative solutions to reduce GHG emissions. CCUS is a crucial technology for achieving a low-carbon economy. However, significant research gaps exist in understanding the intersection of CCUS policy and the United Nations' SDGs. This review article addresses these gaps by comprehensively analyzing CO₂ storage projects across six global regions, examining 53 notable CCUS projects, and assessing CCUS policies in 15 leading countries. The primary objectives of this study are to (1) analyze regional trends, challenges, and technological advancements in CO₂ storage projects across diverse geological formations; (2) investigate the integration of CCUS into national strategies across leading economies, including the US, Canada, Brazil, China, Japan, India, the UK, France, the Netherlands, Germany, Australia, KSA, the UAE, and Qatar. The integration of CCUS with renewable energy sources and BECCS is explored, emphasizing its potential to achieve harmful emissions and support net-zero ambitions. Future perspectives focus on advancing CCUS efficiency and economic viability through innovations in sorbents, membranes, and process optimizations. The findings demonstrate significant alignment between CCUS policies and SDG targets, emphasizing the importance of integrated approaches to achieve a low-carbon future. This review serves as a valuable resource for policymakers, researchers, and industry stakeholders involved in the development of CO₂ storage solutions, providing insights into future perspectives and opportunities for CCUS.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 636-658"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine learning approach for modelling and predicting interfacial tension and rheology of crude oil nanoemulsions stabilized by rhamnolipid biosurfactant","authors":"Andaç Batur Çolak ,&nbsp;Sagheer A. Onaizi","doi":"10.1016/j.ptlrs.2025.02.005","DOIUrl":"10.1016/j.ptlrs.2025.02.005","url":null,"abstract":"<div><div>Forecasting the properties of nanoemulsions without engaging in expensive and time-consuming experimental research can yield significant benefits across multiple applications. This study examines the capability of machine learning to precisely forecast the interfacial tension and viscosity of crude oil-water nanoemulsions stabilized by rhamnolipid biosurfactant. Four artificial neural network models were created and assessed for nanoemulsions composed of different concentrations of crude oil and biosurfactants. The performance evaluation of the artificial neural network models demonstrated mean squared error values below 2.26E-03 and coefficients of determination greater than 0.999, signifying exceptional predictive accuracy. The mean overall deviation for all models was determined to be around 0.004%, indicating a negligible divergence from experimental results. The findings indicate that the developed artificial neural network models can accurately and reliably predict interfacial tension and viscosity values, providing an efficient alternative to experimental methods, with potential applications in optimizing nanoemulsion formulations for industrial purposes.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 474-484"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion patterns and optimal materials of tubings in sulfur purification buried wells in the Sichuan Basin","authors":"Yaxin Li ,&nbsp;Shaomu Wen ,&nbsp;Dezhi Zeng ,&nbsp;Sirui Cao ,&nbsp;Yongda Cao ,&nbsp;Chenzhi Huang ,&nbsp;Qiang Liu ,&nbsp;Xue Han","doi":"10.1016/j.ptlrs.2025.01.005","DOIUrl":"10.1016/j.ptlrs.2025.01.005","url":null,"abstract":"<div><div>The study aims to explore the corrosion behaviors of tubings of different materials under the injection condition of sulfur-containing purification exhaust gas buried storage well and select a proper steel. A high-temperature and high-pressure autoclave was used to simulate the injection condition of sulfur-containing purification exhaust gas and carry out corrosion weight loss tests on N80 carbon steel, 13Cr stainless steel, and 825 nickel-based alloy steel under two different partial pressures of CO₂ (2 and 5 MPa). Corrosion rate, the morphology of corrosion products, the morphology of cross-section of corrosion products, and local corrosion depth were explored and the corrosion life prediction and economic evaluation of tubings were performed. Under the simulated conditions, with the increase in CO₂ partial pressure, the corrosion rates of N80 carbon steel, 13Cr stainless steel, and 825 nickel-based alloy steel increased from 0.0548 mm/a, 0.0172 mm/a, and 0.0013 mm/a to 0.102 mm/a, 0.025 mm/a, and 0.0034 mm/a. The corrosion products of the three steels were mainly FeCO₃ and FeS and gradually increased with the increase in CO₂ partial pressure. However, the connection among corrosion products was not dense and cracks and holes were observed in the corrosion product film. N80 steel mainly exhibited the uniform corrosion and its residual tensile strength and tensile safety factor decreased with the increase in service life. Safe service life decreased from 48a to 26a with the increase in CO₂ partial pressure. Pitting corrosion occurred in 13Cr steel and the ultimate perforation life decreased from 6.05a to 3.36a with the increase in CO₂ partial pressure. Based on the consideration of economy and field applicability, N80/825 bimetal composite tubing is recommended as the material of tubings.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 592-601"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatio-temporal characterisation of the Beekeeper Formation of Australia: facies development, mixing of carbonate and siliciclastic materials, and influencing factors","authors":"Muhammad Ridha Adhari ,&nbsp;Marwan ,&nbsp;Husni Husin ,&nbsp;Nazli Ismail ,&nbsp;Azman A. Ghani","doi":"10.1016/j.ptlrs.2025.03.001","DOIUrl":"10.1016/j.ptlrs.2025.03.001","url":null,"abstract":"<div><div>The Beekeeper Formation, a mixed carbonate-siliciclastic reservoir, has long been known as a proven gas reservoir in the northern Perth Basin, Australia. However, its characteristics, and spatio-temporal distribution are still not well understood. There are two main objectives of this study: (1) to identify the main cutting facies groups/subgroups, and electrofacies of the Beekeeper Formation; and (2) to understand spatio-temporal characteristics, and development of the Beekeeper Formation. Integrated multi analyses have been conducted to achieve these objectives including cutting, wireline logging, and XRF analyses. Fifteen types of cutting components, and nine electrofacies were identified forming the Beekeeper Formation. The Beekeeper Formation consists of nine facies sub-groups, and these are classified into carbonate-dominated facies group, siliciclastic-dominated facies group, and mixed carbonate-siliciclastic facies group. Furthermore, this formation can vertically be divided into three parts on the basis of the main facies groups: the lower, middle, and upper parts. The lower and upper parts consist predominantly of siliciclastic materials, while the middle part is dominated by carbonate materials. In the north of the study area, the Beekeeper Formation consists predominantly of siliciclastic materials with minor carbonate materials, whereas in the central to south it consists mainly of carbonate material with minor-moderate siliciclastic materials. Various processes have influenced the evolution of the Beekeeper Formation including influx of siliciclastic components, mixing of carbonate and siliciclastic materials, suitable environment for the growth of carbonate biotas, sea level fluctuation, and tectonic activities. It is expected that findings from this study will provide new insights into characteristics of mixed carbonate-siliciclastic reservoirs in general, and will have regional and global applicability.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 443-457"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulation-driven sensitivity analysis and optimization of critical parameters for maximizing CO2-EOR efficiency","authors":"Ashutosh Rawat ,&nbsp;Tithee Bhavsar ,&nbsp;Bhaskarjyoti Khanikar ,&nbsp;Abhishek Samanta ,&nbsp;Patrick Nguessan ,&nbsp;Soumili Saha ,&nbsp;Namrata Bist ,&nbsp;Anirbid Sircar","doi":"10.1016/j.ptlrs.2025.02.007","DOIUrl":"10.1016/j.ptlrs.2025.02.007","url":null,"abstract":"<div><div>The application of Carbon Dioxide (CO₂) injection in enhanced oil recovery (EOR) has evolved, making a major benefit for increasing the production level from mature reservoirs. This paper investigates the optimization of the CO₂-EOR process based on using a new mode of simulation-based sensitivity analysis to understand two main proposed strategies, namely continuous gas injection and water-alternating-gas (WAG) injection. Prominent dynamical features including multiphase flow and displacement mechanisms were effectively captured in the form of a detailed reservoir model developed with considerable care for both techniques. The performance of each injection method was determined from a comprehensive analysis on the major production performance metrics: i) Oil recovery factor, ii) Gas-oil ratio iii) Cumulative oil production. Applying a wide range of sensitivity methods that included proxy model, Morris analysis and Sobol method were used to analyze the main parameters affecting the effectiveness of CO₂ injection. The analysis then produced an optimization framework highlighting conditions conducive to achieving maximum oil recovery. The results of the study point to the effectiveness of WAG injection strategy in promoting oil recovery through better mobility control and lower gas breakthrough risk compared with continuous gas injection. This approach enhances sweep efficiency and highlights the significance of selecting appropriate injection strategies to maximize recovery in immiscible CO₂ flooding processes. The alternating phases of water and CO₂ in the Water-Alternating-Gas (WAG) process are crucial for optimizing oil recovery outcomes.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 552-563"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing oil recovery with MWCNT and GO nanocomposites in high salinity heterogeneous media","authors":"Ashkan Maleki ,&nbsp;Arash Mehdizad ,&nbsp;Nahid Sarlak ,&nbsp;Behnam Sedaee ,&nbsp;Alimorad Rashidi ,&nbsp;Aliyar Javadi ,&nbsp;Reza Daneshfar ,&nbsp;Vahid Rezaverdinejad ,&nbsp;Sajjad Gharechelou","doi":"10.1016/j.ptlrs.2025.02.010","DOIUrl":"10.1016/j.ptlrs.2025.02.010","url":null,"abstract":"<div><div>Water injection remains the predominant method in the oil recovery process, but chemical flooding methods such as nanohybrid injection, with its distinct advantages, emerge as a promising alternative to traditional water flooding (WF). This study employed a straightforward synthesizing method, specifically the sol-gel process, to graft polyacrylamide (PAM) onto Graphene Oxide (GO) and Carbon Nanotube (CNT). The objective was to combine the advantages of both polymer and nanoparticle flooding. Our investigation comprised a comprehensive series of static and displacement tests, aiming to investigate the impact of nanohybrid injection in comparison to conventional water and polymer flooding. A series of static tests, SEM, TEM, FTIR, as well as viscosity, IFT, contact angle, and stability assessments, were conducted. As dynamic tests, a series of injection tests were done using a glass micromodel with a high degree of heterogeneity containing both connected and disconnected fractures which makes injection fluid's work very hard to recover oil. Results of static tests such as bottle and TGA, showed that the synthesized nanohybrids have great stability against harsh conditions of the reservoir in case of formation water salinity and temperature conditions which differentiates our work from previous studies. By analyzing the results of dynamic tests it was found that reduction of Interfacial Tension or IFT (which is the forces acting at the interface of nanofluids and oil) showed the most effect on oil recovery as CNT/PAM nanohybrid were able to lower the IFT value the most compared to the other injection fluids and therefore exhibited the highest oil recovery factor Alongside IFT reduction mechanism, mobility control was found to be another important factor specially in case of recovering heavy oil when GO/PAM outperformed CNT/PAM's recovery factor as GO/PAM has more viscosity than CNT/PAM.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 3","pages":"Pages 577-591"},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative organic geochemistry of shale deposits of northern Appalachian Basin","authors":"Nandini Kar ,&nbsp;Kathryn Tamulonis ,&nbsp;Richard W. Smith ,&nbsp;Stella C. Woodard ,&nbsp;Mark R. Noll ,&nbsp;Reilly M. Blocho ,&nbsp;Andre Brunette ,&nbsp;William A. Heins","doi":"10.1016/j.ptlrs.2024.09.002","DOIUrl":"10.1016/j.ptlrs.2024.09.002","url":null,"abstract":"<div><div>The organic-rich black shales in the Appalachian basin are a vital producer of natural gas. In this study, we present new multiproxy geochemical data from the Ordovician and Devonian black shales in New York (NY) and Pennsylvania (PA). The samples include outcrop samples collected in NY (Utica Group and Marcellus Formation) and core samples from PA (Marcellus Formation, Skaneateles Formation, and Genesee Group). We combined organic geochemical data (% total organic carbon or %TOC, δ¹³C_org, C/N ratio, and lipid <em>n</em>-alkane distribution) with trace element (TE) data to identify the organic matter (OM) sources and depositional conditions. The TE analysis data shows that water conditions were variable during the deposition of these black shales, fluctuating between oxic and dysoxic conditions with occasional anoxia. There was probably a change from an open water condition (Co∗Mn = 0.2) during the deposition of the Flat Creek Formation to a more restricted exchange later during the deposition of the Indian Castle Formation (Co∗Mn = 2.9) in the Ordovician. Basin circulation likely remained restricted during the deposition of the Devonian black shales (Co∗Mn ranges from 0.4 to 1.3). Based on δ¹³C_org values (−32.9‰ and −29.6‰) that are more depleted than marine OM δ¹³C_org, C/N ratios (11.2 and 9.2) higher than marine OM, and the presence of longer chain <em>n</em>-alkanes in the range of C25 to C33, we suggest that bryophytes were possibly a significant organic source to the Ordovician Utica Group in NY. The kerogen type in Utica Group samples is type III, mostly terrestrial OM. The Devonian NY and PA samples show mostly bimodal distributions. In some samples, a secondary, though sometimes dominant, shorter chain peak in the range of C14 to C20 is present, in addition to the long chain peak. We suggest the bimodal <em>n</em>-alkane distribution signifies a mixed OM source consisting of terrestrial and marine contributions with differing degrees of thermal maturation compared to the samples with a unimodal distribution. Our results suggest that samples from the NY Marcellus Group are composed of type III kerogen, while samples from the PA Marcellus Formation, Skaneateles Formation, and Genesee Group contain both type II and type III kerogens.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 2","pages":"Pages 217-233"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-resolution sequence stratigraphy of the Ponta do Mel Formation, Potiguar Basin, Brazil: Insights into shallow-marine carbonate reservoir zonation and characterisation","authors":"A.J.C. Magalhães ,&nbsp;A.H. Melo ,&nbsp;G.J.S. Terra ,&nbsp;D.G.C. Fragoso ,&nbsp;U.M. Soares ,&nbsp;F.P. Lima-Filho","doi":"10.1016/j.ptlrs.2024.12.002","DOIUrl":"10.1016/j.ptlrs.2024.12.002","url":null,"abstract":"<div><div>This comprehensive study establishes a novel high-resolution sequence stratigraphic framework for a shallow, warm, land-tied carbonate-rimmed shelf represented by the Ponta do Mel Formation. Integration of cores and cuttings with seismic and well-log data provides the detailed subsurface stratigraphic framework encompassing two fourth-order genetic sequences. The high-resolution approach unveiled the step-by-step depositional and diagenetic evolution of the Ponta do Mel Formation at the fourth-order systems tracts scale and established the reservoir zonation. In each zone, the lateral contact between high-energy outer shelf and shelf rim potential reservoirs and low-energy inner shelf deposits constitutes critical reservoir heterogeneities that may affect production planning and development projects. Moreover, the reservoir scale enabled discussion on the controls on deposition, high-resolution sequence architecture, diagenesis, and insight into the zonation and characterisation of similar oil and gas reservoirs worldwide.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 2","pages":"Pages 304-319"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of structural features of asphaltenes used for carbon materials synthesis by arc plasma treatment","authors":"Andrey Grinko ,&nbsp;Evgenia Leushina ,&nbsp;Yuliya Petrova ,&nbsp;Pavel Povalyaev ,&nbsp;Alexander Pak ,&nbsp;Arina Goncharova ,&nbsp;Vasily Kaichev ,&nbsp;Valentina Egorova ,&nbsp;Kirill Cherednichenko ,&nbsp;Dmitry Zelentsov ,&nbsp;Tatiana Cheshkova","doi":"10.1016/j.ptlrs.2024.10.003","DOIUrl":"10.1016/j.ptlrs.2024.10.003","url":null,"abstract":"<div><div>This study presents analysis of asphaltenes isolated from two crude oils: naphthenic-aromatic biodegraded oil and paraffin-naphthenic oil, which have been used as precursors for carbon materials synthesis. The aim of this study is to investigate the interrelationship between the initial structure of asphaltene and the properties of carbon materials. Based on number of spectroscopic and other data, it can be found out that the asphaltenes from napthenic-aromatic biodegraded oil contain less paraffin and more cyclic fragments (aromatic and aliphatic), that are larger and more densely stacked. The asphaltenes of paraffin-naphthenic oil contain a larger number of labile bonds and heteroatoms. Both the asphaltenes contain sulfur enclosed in thiophene and sulfide fragments, nitrogen and oxygen, which are incorporated in different units with different thermal stability. Carbon materials are obtained from both asphaltenes via plasma of an electric arc discharge. The asphaltenes undergo graphitization as a result of plasma treatment, the general trend is an elimination of functional groups and N, S, O. The yields of the carbon materials are almost equal for two studied asphaltenes, giving graphite-like materials as the major product in both cases. The carbon material obtained from the napthenic-aromatic asphaltenes is less thermally stable, the yield of nano-structures and nanofibers are higher compared to the asphaltenes from paraffinic oil, with trace metals remaining during the synthesis process. The carbon material from paraffin-naphthenic oil is amorphous with low heteroatoms content.</div></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"10 2","pages":"Pages 352-369"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}