Article
Energy & Fuels
Aref Nafisifar, Abbas Khaksar Manshad, Seyed Reza Shadizadeh
Summary: This research evaluated the EOR potential of a novel nanocomposite and a developed surfactant in the presence of various ions and studied the production enhancement mechanisms using a glass micromodel. It was found that the nanocomposite altered the wettability of an oil-wet carbonate surface to a water-wet one, improving the surfactant's wettability alteration ability. By injecting the desired solutions into the glass micromodel, the optimum concentrations and mechanisms of the nano-chemical EOR method were determined, and the performance of each solution in the porous medium was evaluated.
Review
Chemistry, Multidisciplinary
Weipeng Yang, Jun Lu, Bing Wei, Haiyang Yu, Tianbo Liang
Summary: This review briefly summarizes recent advances in micromodel studies of surfactant flooding, showcasing the mechanisms of surfactant flooding demonstrated by micromodel studies and pore-scale findings that cannot be captured by traditional coreflood methods.
Article
Energy & Fuels
Kang Wang, Qing You, Qiu-Ming Long, Biao Zhou, Pan Wang
Summary: Due to the low permeability and porosity in unconventional reservoirs, a significant amount of trapped crude oil can be released and recovered through the use of nanofluids. This study explores the regulating capabilities of nanofluids at the oil/water/solid three-phase interface. The results demonstrate the reduction of interfacial tension and improved interface properties, as well as the visualization of oil mobilization and displacement mechanisms in micro-to nano-scale pores and throats, offering insights into the enhanced oil recovery mechanisms of nanofluids.
Article
Energy & Fuels
Iman Nowrouzi, Amir H. Mohammadi, Abbas Khaksar Manshad
Summary: This research investigates the use of a natural polymer derived from Plantago ovata seeds as a method of enhanced oil recovery (EOR). The findings demonstrate that P. ovata mucilage (POM) can effectively enhance oil recovery when combined with smart water, showcasing its potential as a natural alternative for EOR processes.
Article
Engineering, Chemical
Yawen Tan, Yiqun Zhang, Chengyu Hui, Chao Yu, Shouceng Tian, Tianyu Wang, Fei Wang
Summary: Enhanced oil recovery (EOR) is a crucial technology in the petroleum industry, influenced by factors such as flooding fluids and methods. This study conducted experiments using a glass micromodel to investigate the effect of pulsing water injection on oil recovery. The results showed that resonance occurred when the pulse frequency matched the natural frequency of the micromodel, leading to increased amplitude, enhanced oil mobility, and improved recovery. Our findings have important implications for EOR strategy design and optimization.
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
Xidao Wu, Yu Zhang, Ke Zhang, Bei Liu, Julian Y. Zuo, Guangjin Chen, Peng Xiao
Summary: By forming emulsions with liquid CO2 and water to enhance oil recovery, the mobility of CO2 can be reduced, resulting in higher oil recovery; in slim tube experiments, C/W emulsion flooding can achieve additional oil recovery compared to pure CO2 injection, especially in heavier crude oils.
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
Energy & Fuels
Mariam Shakeel, Aida Samanova, Peyman Pourafshary, Muhammad Rehan Hashmet
Summary: The study investigated hybrid approaches using engineered water (EW) and chemical enhanced oil recovery (CEOR) for carbonate reservoirs. The best combination was found to be the EWASP flooding in slug-wise injection mode, resulting in 36% incremental oil recovery. Hybrid designs were more effective in recovering residual oil due to better mobility control and lower interfacial tension.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Review
Energy & Fuels
Ahmed Bashir, Amin Sharifi Haddad, Roozbeh Rafati
Summary: Surfactant-based oil recovery processes are used to lower interfacial tension and change the wettability of rock in immiscible displacement processes. The key factors affecting this process are temperature, salinity, pH, surfactant concentration, and adsorption. Chemical enhanced oil recovery (cEOR) processes combine surfactants with other chemicals to exploit their synergy. This review study categorizes the role and displacement mechanisms of surfactants and discusses key factors for analyzing fluid displacement in porous media.
Article
Energy & Fuels
Auby Baban, Alireza Keshavarz, Robert Amin, Stefan Iglauer
Summary: The wetting properties of rock play a crucial role in determining the success of CO2-EOR projects and CO2 geo-sequestration. Experimental results show that oil-wet rock can store approximately 12% of CO2, while water-wet rock can store approximately 20% of CO2, and it is also more efficient in extracting oil.
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
Chemistry, Multidisciplinary
Dayan L. Buitrago-Rincon, Veronique Sadtler, Ronald A. Mercado, Thibault Roques-Carmes, Philippe Marchal, Samuel F. Munoz-Navarro, Maria Sandoval, Julio A. Pedraza-Avella, Cecile Lemaitre
Summary: The effect of silica nanoparticles (NP-SiO2) in xanthan gum (XG) solutions was investigated in this study. The addition of nanoparticles showed a slight effect on the viscosity of the fluids, which became more remarkable over time. Interfacial tension tests measured in water-mineral oil systems did not find any effect on the interfacial properties with the addition of polymer or nanoparticles. Three core flooding experiments were conducted using sandstone core plugs and mineral oil, and the nanofluid formulation recovered about 13% of the residual oil, almost double that of the original XG solution.
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)
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
Biochemical Research Methods
J. Mitchell, A. M. Howe, A. Clarke
JOURNAL OF MAGNETIC RESONANCE
(2015)
Article
Chemistry, Multidisciplinary
Paul D. I. Fletcher, Luke D. Savory, Freya Woods, Andrew Clarke, Andrew M. Howe
Article
Chemistry, Physical
Andrew M. Howe, Andrew Clarke, Daniel Giernalczyk
Article
Chemistry, Physical
Andrew Clarke, Andrew M. Howe, Jonathan Mitchell, John Staniland, Laurence Hawkes, Katherine Leeper
Article
Physics, Applied
H. Xu, A. Clarke, J. P. Rothstein, R. J. Poole
APPLIED PHYSICS LETTERS
(2016)
Article
Energy & Fuels
Paul D. I. Fletcher, Luke D. Savory, Andrew Clarke, Andrew M. Howe
Article
Chemistry, Physical
Jonathan Mitchell, Kyle Lyons, Andrew M. Howe, Andrew Clarke
Article
Chemistry, Physical
H. Xu, A. Clarke, J. P. Rothstein, R. J. Poole
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2018)
Article
Mechanics
E. J. Hemingway, A. Clarke, J. R. A. Pearson, S. M. Fielding
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2018)
Article
Mechanics
H. J. Barlowa, E. J. Hemingway, A. Clarke, S. M. Fielding
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2019)
Article
Mechanics
Enny Tran, Andrew Clarke
Summary: It is generally understood that the entanglement effects of viscoelastic polymer solutions are weakened under strong flow. However, recent research has found that high molecular weight HPAM solutions, which are entangled at use concentrations, exhibit a characteristic relaxation time when transitioning to elastic turbulence in porous flow. In this study, we directly measure the apparent characteristic relaxation time under shear using controlled-stress parallel-superposition background shear, and our results align with previous calculations using Rolie-poly and Rolie-double-poly models.
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2023)
Article
Chemistry, Physical
Andrew Clarke, Elizabeth Jamie, Nikolaos A. Burger, Benoit Loppinet, George Petekidis
Summary: This study investigates the structural and mechanical changes of an oil-continuous drilling fluid formulation under high temperature and high pressure conditions using Diffusive Wave Spectroscopy (DWS). The results show that the drilling fluid undergoes local structural changes and exhibits strong hysteresis with temperature and pressure variations. Additionally, microrheology analysis is found to be consistent with direct rheological measurements at ambient pressure.
Article
Chemistry, Physical
Andrew Clarke
Summary: This study investigates the breakdown process of a gelled drilling fluid under the action of repeated deformation, suggesting that the fluid may behave as an arrested phase separating material. The observed evolution shows a maximum in elastic modulus correlated with a maximal connected heterogeneity of structure.
Proceedings Paper
Engineering, Electrical & Electronic
V. J. Anderson, A. Clarke, G. H. Meeten
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)