Article
Energy & Fuels
Muhammad Yusuf, Muhammad Hizbul Wathon, Vorasate Thanasaksukthawee, Alexander Saul, Suparit Tangparitkul
Summary: The study examined the adsorption behavior of natural saponin surfactant on carbonate rock outcrops, showing that saponin adsorbed less than ionic surfactants due to weaker hydrogen bonding rather than electrostatic interactions. Compared to other nonionic surfactants, saponin had greater retention attributed to its molecular structure with more terminal functional groups. These findings are valuable in surfactant selection for EOR, highlighting the potential of natural and environmentally friendly surfactants.
Article
Energy & Fuels
Emil R. Saifullin, Polina O. Putintseva, Rustam N. Sagirov, Mikhail A. Varfolomeev, Chengdong Yuan, Roman S. Pavelyev, Sergey A. Nazarychev, Aleksei O. Malahov, Lucia Akimushkina, Dmitrii A. Zharkov, Alexey O. Bykov, Ulukbek Mirzakimov
Summary: This study successfully synthesized three novel anionic-nonionic surfactants based on the nonionic surfactant NPEO and evaluated their effectiveness for enhanced oil recovery in high salinity water. The modified surfactants showed significant reduction in interfacial tension and improved wettability of the rock, leading to increased oil production. Filtration experiments indicated the great potential of these novel surfactants for enhanced oil recovery in high salinity reservoirs.
Article
Energy & Fuels
Tinuola Udoh, Jan Vinogradov
Summary: This study presents a thorough experimental investigation on enhanced oil recovery through controlled salinity-biosurfactant injection under typical reservoir temperature conditions. The results demonstrate that injection of CSBSB can significantly improve oil recovery compared to FMB and CSB injections, regardless of temperature.
Article
Chemistry, Inorganic & Nuclear
Sumadi Paryoto, Yoga Romdoni, Ivan Kurnia, Oki Muraza, Munawar Khalil
Summary: Enhanced Oil Recovery (EOR) is a method that increases oil production by altering the interaction between fluids and rock minerals in the reservoir. Surfactants, which are part of EOR, have limitations at high temperatures and salinity. Nanoparticles, specifically Fe3O4, show potential in addressing these limitations. This study explores the use of a surfactant mixture and Fe3O4 nanoparticles as nanofluids to enhance oil recovery. Results show that a mixture of 4% surfactant and 0.01% Fe3O4 nanoparticles achieves optimal results, forming a Winsor type III microemulsion with an IFT value of 0.089 mN/m. Coreflooding experiments also demonstrate that the surfactant-Fe3O4 nanofluid improves oil recovery compared to surfactants alone, with a total oil recovery of 76.50% of OOIP. The synergy between surfactants and Fe3O4 nanoparticles holds promise for EOR applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Guillaume Lemahieu, Jesus F. Ontiveros, Valerie Molinier, Jean-Marie Aubry
Summary: This study characterizes the properties of technical grade surfactants used in chemical Enhanced Oil Recovery (EOR) using the PIT-slope and SPI-slope methods. By positioning the surfactants in the SPI-slope/PIT-slope map, it is possible to identify several surfactant mixtures that provide the optimal formulation for a given crude oil at the same salinity.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Moussa Taleb, Farad Sagala, Afif Hethnawi, Nashaat N. Nassar
Summary: This study successfully synthesized novel and stable faujasite nanoparticles without the need for surface modifications under low-salinity water, effectively changing the rock wettability from strong oil wet to strong water wet, and demonstrated their effectiveness as EOR agents in carbonate cores.
Article
Energy & Fuels
Feng Liu, Jiawei Shen, Ping Yue, Rongjun Zhang, Qingli Wang, Gaoming Yu, Jiangtang Zhou, Xiukun Wang
Summary: Carbon neutrality is a long-term development strategy for many countries worldwide. The widespread implementation of carbon capture, utilization, and storage (CCUS) is critical for achieving this goal. This study analyzes the CO2 storage in ultralow permeability reservoirs through experiments and numerical simulations, identifying the main influencing factors and mechanisms.
Review
Energy & Fuels
Afeez Gbadamosi, Shirish Patil, Dhafer Al Shehri, Muhammad Shahzad Kamal, S. M. Shakil Hussain, Emad W. Al-Shalabi, Anas Mohammed Hassan
Summary: This article reviews the combination of low salinity waterflooding (LSWF) and chemical enhanced oil recovery (EOR) for improving oil production in reservoirs. Experimental and modeling results show that the combination of LSWF and chemical EOR is more efficient than individual EOR methods.
Article
Chemistry, Physical
Behnaz Sami, Amin Azdarpour, Bizhan Honarvar, Moein Nabipour, Alireza Keshavarz
Summary: The use of green, eco-friendly, efficient, and sustainable surfactants for enhanced oil recovery (EOR) is crucial. A novel natural surfactant extracted from oat was found to be highly efficient and stable for EOR applications. Different salts were tested, and Na2CO3 showed the best compatibility and achieved the most significant reduction in interfacial tension (IFT). Core flooding tests demonstrated that using the natural surfactant with Na2CO3 as a tertiary recovery agent increased the oil recovery factor by 28.89%.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Xiaoxiao Li, Xiang'an Yue, Jirui Zou, Rongjie Yan
Summary: Surfactant flooding technology has become an important method for enhancing oil recovery in low-permeability reservoirs. This study compared the behaviors of surfactants, including reducing interfacial tension and in-situ emulsification, and used a 2D heterogeneous model to examine their effects. The results showed that in-situ emulsification was more crucial for oil recovery, especially in cores with lower permeability. The strong emulsifying capacity of surfactant dispersed residual oil, blocked pores, and improved efficiency, while avoiding the formation of micro water channels.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Energy & Fuels
Ranjan Phukan, Rahul Saha
Summary: A low salinity surfactant (LSS) system was developed to enhance the performance of immiscible surfactant alternating gas/CO2 (SAG) flooding in sandstone reservoir cores. LSS solutions showed positive impacts on various mechanisms responsible for enhanced oil recovery (EOR), including reducing surface and interfacial tension, altering wettability, improving CO2-foam stability, and decreasing surfactant adsorption.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Peyman Koreh, Mostafa Lashkarbolooki, Majid Peyravi, Mohsen Jahanshahi
Summary: This study investigated the performance of different types of surfactants on the surface activity, emulsion size, and surface charge of five oil samples. The effects of various parameters on the interfacial tension of crude oil/surfactant solutions were comprehensively analyzed. The results showed that the properties of the surfactants, crude oil type, and ionic strength influenced the interfacial tension, surface charge, and microemulsion size, but not in a straightforward manner. Among the surfactants considered, the cationic surfactant showed the lowest dependency on the crude oil type, while the non-ionic surfactant showed the highest dependency. CTAB cationic surfactant exhibited the most efficient performance with a microemulsion size of 102 nm and surface charge near the isoelectric point.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Review
Energy & Fuels
Oguntade Tomiwa Isaac, Hui Pu, Babalola Aisisa Oni, Fadairo Adesina Samson
Summary: Chemical enhanced oil recovery (EOR) methods have gained widespread interest due to depleting crude oil reserves and increasing energy demand. Surfactant flooding, which combines various mechanisms, has proven to be effective in improving oil recovery. However, it still faces challenges such as instability under excessive adsorption and harsh reservoir conditions. This review provides an experimental study on surfactant application in conventional and unconventional reservoirs for EOR, discussing the influence of oilfield element variation, types and EOR mechanisms, surfactant adsorption and adsorption mitigation, and surfactant phase behavior.
Article
Energy & Fuels
Mehdi Zallaghi, Ali Reza Khaz'ali
Summary: The study investigates the efficiency of a mixture of cationic and nonionic surfactants combined with smart water for enhanced oil recovery in carbonate reservoirs. Through experiments and analysis, it demonstrates a strong synergy between low salinity water and surfactant for recovering oil from carbonate reservoirs, showing significant improvements in oil recovery.
Article
Chemistry, Multidisciplinary
Dirk J. Groenendijk, Ron Bouwmeester, Johannes N. M. van Wunnik
Summary: The study uses a Ca(2+)-sensitive dye to measure the Ca2+ concentration and Ca-complex formation constants in solutions containing chelating agents, providing a rapid screening tool for the affinity of different chemicals to form Ca-complexes in low-salinity solutions. The obtained complex formation constants can be used in chemical flooding simulators to investigate their interaction with mineral dissolution, cation exchange, and adsorption processes.
Article
Energy & Fuels
Umer Farooq, Meysam Nourani, Flavien Ivol, Anne Bjerke Arrestad, Gisle Oye
Article
Geosciences, Multidisciplinary
Aurelien G. Meyer, Lars Stemmerik, Peter Frykman, Toms Buls, Meysam Nourani
MARINE AND PETROLEUM GEOLOGY
(2019)
Article
Geosciences, Multidisciplinary
Aurelien G. Meyer, Meysam Nourani, Lars Stemmerik
PETROLEUM GEOSCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Reidun C. Aadland, Salem Akarri, Ellinor B. Heggset, Kristin Syverud, Ole Torsaeter
Article
Chemistry, Multidisciplinary
Edgar Rueda, Salem Akarri, Ole Torsaeter, Rosangela B. Z. L. Moreno
Article
Chemistry, Multidisciplinary
Shidong Li, Yeap Hung Ng, Hon Chung Lau, Ole Torsaeter, Ludger P. Stubbs
Article
Engineering, Chemical
Mohamed Omran, Salem Akarri, Ole Torsaeter
Article
Chemistry, Multidisciplinary
Nanji J. Hadia, Yeap Hung Ng, Ludger Paul Stubbs, Ole Torsaeter
Summary: Surface modification of nanoparticles using a combination of zwitterionic and hydrophilic silanes has been shown to improve stability under high salinity and high temperature conditions. Accelerated stability analysis predicts that the modified nanoparticles can remain stable for at least 6 months, with contact angle measurements indicating potential effectiveness in carbonate reservoirs.
Article
Chemistry, Multidisciplinary
Alberto Bila, Ole Torsaeter
Summary: Laboratory experiments have shown that nanoparticle (NPs) flooding can lead to higher oil recovery rates, mainly through changes in wettability and reduction of interfacial tension. However, gaps still exist in understanding the interactions induced by NPs. This study investigated the performance of four types of polymer-coated silica NPs in harsh reservoir conditions and found that NP aggregation led to decreased core permeability, affecting oil sweep efficiency.
Editorial Material
Chemistry, Multidisciplinary
Ole Torsaeter
Article
Energy & Fuels
Meysam Nourani, Najeh Alali, Saeed Samadianfard, Shahab S. Band, Kwok-wing Chau, Chi-Min Shu
Summary: This study presents a new technology for fast and reliable prediction of porosity in chalk samples using machine learning methods and X-ray fluorescence elemental analysis. Intelligent models trained and tested on different samples show that the combination of genetic algorithm-integrated random forest method with XRF elemental analysis provides an accurate model.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Alberto Bila, Ole Torsaeter
Article
Multidisciplinary Sciences
Meysam Nourani, Thomas Tichelkamp, Bartlomiej Gawel, Jens Norrman, Gisle Oye
SN APPLIED SCIENCES
(2020)
Article
Multidisciplinary Sciences
Meysam Nourani, Niels Hemmingsen Schovsbo, Ashkan Jahanbani Ghahfarokhi, Carsten Moller Nielsen, Lykourgos Sigalas, Aurelien Gabriel Meyer, Dan Olsen, Lars Stemmerik
SN APPLIED SCIENCES
(2020)
Article
Multidisciplinary Sciences
Meysam Nourani, Thomas Tichelkamp, Hamid Hosseinzade Khanamiri, Trine Johansen, Ingrid Karlsen Hov, Bartlomiej Gawel, Ole Torsaeter, Gisle Oye
SN APPLIED SCIENCES
(2020)