Article
Chemistry, Multidisciplinary
Samhar Saleh, Elisabeth Neubauer, Ante Borovina, Rafael E. Hincapie, Torsten Clemens, Daniel Ness
Summary: The study revealed that the synergistic use of nanomaterials and alkali can reduce interfacial tension, improve oil-water emulsification, and potentially enhance oil recovery in oil fields.
Article
Energy & Fuels
Bennet Nii Tackie-Otoo, Mohammed Abdalla Ayoub Mohammed, Esther Boateng Owusu
Summary: Amino acid-based surfactants (AASs) and other novel surfactants have gained attention for their environmentally friendly image in surfactant application. However, their potential in enhancing oil recovery has not been well studied. This research investigates the potential of sodium cocoyl alaninate (SCA) for enhanced oil recovery (EOR) and finds that it is more effective than sodium dodecyl sulfate (SDS) in reducing interfacial tension and emulsifying crude oil-brine mixture, altering rock surface wettability, and achieving higher adsorption density and additional oil recovery. Therefore, SCA and other AASs could be outstanding alternatives to conventional EOR surfactants due to their excellent EOR potential and environmental benign nature.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Energy & Fuels
Fatemeh Ozar Asl, Ghasem Zargar, Abbas Khaksar Manshad, Muhammad Arif, Stefan Iglauer, Alireza Keshavarz
Summary: A new nanocomposite comprising of ZnO nanoparticles and polyacrylamide (PAM) polymer hybrid agent is investigated for enhanced oil recovery in sandstone and carbonate rocks. The study examines the behavior of the nanocomposite in terms of synthesis, characterization, physical properties, stability analysis, interface tension and wettability. It is found that the nanocomposite can improve the wettability of the rocks, leading to increased oil recovery compared to seawater flooding.
Article
Energy & Fuels
Ali Jalali, Ali Mohsenatabar Firozjaii, Seyed Reza Shadizadeh
Summary: This study uses a natural surfactant extracted from Cordia myxa leaf for surfactant flooding, and experimentally demonstrates that it can effectively reduce interfacial tension and improve wettability. Core flooding results show that the use of this surfactant can increase oil recovery and reduce residual oil saturation in porous media.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Energy & Fuels
Hamid Esfandyari, Atieh Haghighat Hoseini, Seyed Reza Shadizadeh, Afshin Davarpanah
Summary: This study investigated the effects of a nonionic natural surfactant on wettability changes in carbonate mineral samples, finding a significant impact of Cedar on wettability and capillary pressure for core samples, particularly for dolomite cores. The presence of Cedar shifted calcite cores from oil-wet to neutral-wet or slightly water-wet, and dolomite samples became more water-wet, resulting in a higher oil recovery rate for dolomite cores. Additionally, there was a notable decrease in the S-wettability in dolomite samples, particularly in D1 (14%). Oil recovery for reservoir samples was lower compared to mineral samples.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Sumadi Paryoto, Yoga Romdoni, Ivan Kurnia, Merry Marteighianti, Oki Muraza, Munawar Khalil
Summary: This study investigates the effects of individual and combined systems on the interfacial tension and wettability alteration characteristics of a combination mixture of colloidal Fe3O4 nanoparticles and amphoteric-anionic surfactant. The results show that combining the two surfactants reduces the interfacial tension and adding Fe3O4 nanoparticles at lower concentrations increases the interfacial tension. Furthermore, the combination also changes the wettability from hydrophilic to strongly hydrophilic conditions. The study also finds that adding 0.01 wt% Fe3O4 colloidal nanoparticles in the surfactant mixture provides an optimal recovery efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Renzhuo Wang, Baofeng Hou
Summary: This study focused on the evaluation of surfactants under harsh reservoir conditions, selecting six types and finding that S-6 and S-7 showed the greatest potential in terms of IFT reduction. Microscopic flooding tests revealed that S-6, with stronger wettability alteration ability, led to higher oil recovery compared to S-7, indicating the importance of wettability alteration in improving oil recovery.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(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)
Article
Energy & Fuels
Eugene N. Ngouangna, Mohd Zaidi Jaafar, M. N. A. M. Norddin, Augustine Agi, Abdul Rahim Risal, Stanley C. Mamah, Jeffrey O. Oseh
Summary: The novel concept of using nanoparticles to enhance oil recovery and reduce trapped oil in hydrocarbon reservoirs is being explored. This study investigates the use of hydroxyapatite nanoparticles for reducing interfacial tension and altering wettability under different salinity and temperature conditions. The results show that HAP nanoparticles are effective in improving these properties in both low and high salinity environments.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Da Wu, Dexin Liu, Jiaju Xu, Han Zhao, Yeliang Dong, Neema Adnan Massawe
Summary: This work proposes a new nanoemulsion to enhance spontaneous imbibition recovery in ultra-low permeability reservoirs. Experimental results show that the nanoemulsion can significantly improve the displacement efficiency of ultra-low-permeability reservoirs through the synergistic effect of extremely small droplet size, excellent wettability alteration performance, and ultra-low interfacial tension.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Fatemeh Ozar Asl, Ghasem Zargar, Abbas Khaksar Manshad, Stefan Iglauer, Alireza Keshavarz
Summary: This study investigates the synergistic effect of a synthesized nanocomposite and surfactant on enhanced oil recovery. Through various tests, it was found that the combination of surfactant and nanocomposite has a positive impact on each other and can improve oil recovery.
Article
Energy & Fuels
Xiao Deng, Shirish Patil, Muhammad Shahzad Kamal, Mohamed Mahmoud, Abdullah Sultan, Tinku Saikia
Summary: This study investigated the synergetic impact of chelating agents and viscoelastic surfactants on the wettability alteration of carbonate rock using contact angle measurement. The results showed that all tested chelating agents exhibited strong wettability alteration performance in deionized water solution. The combination of viscoelastic surfactant and chelating agents demonstrated moderate to strong wettability alteration performance. The optimum formulation of the two changed the wettability from strongly oil-wet to water-wet.
Article
Energy & Fuels
Z. Zhang, Madhar Sahib Azad, J. J. Trivedi
Summary: This study addresses research gaps in understanding the dominant recovery mechanisms during surfactant flooding in unconventional, oil-wet reservoirs by investigating physico-chemical interactions and microfluidic studies using zwitterionic surfactant solutions. The observations show that significant IFT reduction and wettability alteration are both crucial for successful oil displacement in water-wet media during surfactant flooding in oil-wet formations.
Article
Energy & Fuels
Derong Xu, Zhe Li, Baojun Bai, Xin Chen, Hairong Wu, Jirui Hou, Wanli Kang
Summary: This study systematically investigated the static imbibition efficiencies of different surfactants based on molecular structures, finding that sulfate anionic surfactants showed better wettability alteration ability than sulfonate surfactants. Increasing the hydrophilicity of surfactants by introducing the ethylene oxide (EO) groups to the surfactant structures was effective in enhancing wettability alteration ability. Surfactants with longer carbon chain (C16 surfactants) enhanced more imbibition recovery than short carbon chain surfactants (C12 surfactants).
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Faruk Yakasai, Mohd Zaidi Jaafar, Mohd Akhmal Sidek, Sulalit Bandyopadhyay, Augustine Agi, Eugene N. Ngouangna
Summary: After primary and secondary recovery processes, a considerable amount of trapped oil in the reservoir can be recovered by functionalized iron oxide nanoparticles (IONPs) with improved dispersibility and stability. The functionalized IONPs exhibited synergistic effects on interfacial tension (IFT), wettability alteration, and emulsion formation, which promoted oil recovery by reducing pore obstruction and improving sweep efficiency. The experimental study confirmed that functionalization increased the oil recovery efficiency of IONPs at reservoir conditions, providing valuable insights into the oil recovery mechanism and transportation of IONPs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)