Article
Energy & Fuels
Zhichao Zhou, Michal Slany, Eva Kuzielova, Wangyuan Zhang, Liwa Ma, Sanbao Dong, Jie Zhang, Gang Chen
Summary: The study found that sodium clay showed the best catalytic effect on the aquathermolysis of heavy oil, while methanol was the most suitable alcohol to enhance viscosity reduction efficiency. Under optimal conditions, the viscosity reduction rate can reach 87.32%.
Article
Chemistry, Physical
Trang T. T. Vu, Nguyen T. T. Nguyen, Linh H. Duong, Anh D. Nguyen, Lan Nguyen-Thanh, Stefan Dultz, Minh N. Nguyen
Summary: This study aims to test the removal of polystyrene microplastics (PSMPs) from aqueous solution by using the cationic polyelectrolyte polydiallyldimethylammonium chloride (polyDADMAC) to stimulate coaggregation of PSMPs and clay minerals with different shape and surface charge properties. The addition of polyDADMAC neutralizes the negative surface charge of clay minerals and PSMPs, allowing their coaggregation. The efficiency to remove PSMPs from aqueous solution follows the order: palygorskite > montmorillonite > kaolinite.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Physical
Azadeh Sadri, Keith F. White, Ian D. Potter, Michael J. Angove
Summary: Considerable quantities of pyrophosphate and orthophosphate are introduced to soils as fertilizers and fire retardants. The sorption behavior of pyrophosphates in soils has received less attention compared to orthophosphates. This study investigated the sorption of pyrophosphate and orthophosphate by boehmite and kaolinite at different temperatures and pH levels, and found that pyrophosphate sorption was higher in lower pH and increased with temperature for kaolinite.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Chemical
Shaohua Zhu, Keteng Tang, Mei Liu, Chengzhen Sun, Bofeng Bai
Summary: This study reveals the effects of ions on the oil-water wettability of rock surfaces and provides molecular insights into the mechanism of wettability alteration under ion-bridging interactions.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Chemical
Mei Liu, Shijing Xu, Shaohua Zhu, Jiazhong Wu, Bofeng Bai, Chengzhen Sun
Summary: This study reveals the effects of ions on the oil-water wettability of quartz surfaces and the mechanism behind it. The results show that alkaline salt solutions can greatly alter the wettability of the surface to become more water-wet, with sodium chloride and potassium chloride solutions being more effective.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Chemical
Chengzhen Sun, Mei Liu, Shijing Xu, Shaohua Zhu, Jiazhong Wu, Bofeng Bai
Summary: The experimental study showed that inorganic salt ions can change the wettability of rock surfaces, making them more water-wet. It was observed that CaCl2 solutions had a more significant effect than NaCl solutions, and Na2SO4 solutions were more effective than NaCl solutions in altering the surface properties.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Energy & Fuels
Abubakar Isah, Mohamed Mahmoud, Muhammad Arif, Murtada Al Jawad, Abduljamiu O. Amao
Summary: Contact angle is a measurement of the wettability of solid surfaces, and the wettability of rock/oil/brine systems can be modified by using solvents for surface cleaning. This study found that different solvents used for cleaning the rock surface can have different effects on the wettability of the rock/oil/brine system.
Article
Energy & Fuels
Kan -Yuan Shi, Jun-Qing Chen, Xiong-Qi Pang, Fu-Jie Jiang, Sha-Sha Hui, Zhen-Cheng Zhao, Di Chen, Qi Cong, Tong Wang, Hui-Yi Xiao, Xiao-Bin Yang, Yu-Ying Wang
Summary: The wetting behavior of water on different clay mineral surfaces at the nanoscale was studied using Molecular dynamics simulation. The wettability of clay minerals was found to follow the order: montmorillonite > chlorite > kaolinite > illite. Factors such as temperature, hydrocarbon type, and water mineralization were found to affect the wettability of clay minerals.
Article
Energy & Fuels
Bruno Marco de Oliveira Silveira, Rafael dos Santos Gioria, Jhonatan Jair Arismendi Florez, Thais Bortotti Fagundes, Mayara Antunes da Trindade Silva, Rodrigo Skinner, Carina Ulsen, Cleyton de Carvalho Carneiro, Jean Vicente Ferrari
Summary: This study emphasizes the importance of oil reservoir wettability in the maintenance and restoration of rock surfaces. The cleaning process may lead to mischaracterization of the original wettability of surfaces, while high temperature and pressure conditions can increase the hydrophobicity of rock surfaces. Furthermore, temperature has a greater impact on contact angle values than pressure.
Article
Multidisciplinary Sciences
Youngsun Kim, Hongru Ding, Yuebing Zheng
Summary: The interfacial behavior at water/oil interfaces in terms of thermal perturbation of dipole arrangement is investigated using opto-thermophoretic tweezers. The study suggests the presence of water molecules and negative charges with specific dipole arrangement at water/oil interfaces, and this arrangement is highly susceptible to thermal perturbation.
NATURE COMMUNICATIONS
(2022)
Article
Energy & Fuels
Hamid Daneshmand, Masoud Rezaeinasab, Masoud Asgary, Meysam Karimi
Summary: Wettability alteration from oil-wet to water-wet on rock surfaces is important for Enhanced Oil Recovery (EOR), where nanoparticles, especially polymer-grafted nanoparticles, show promising results in improving oil recovery. The challenges in applying nanoparticles for EOR lie in the colloidal stability of nanofluids in harsh reservoir conditions. Modified silica nanoparticles with hydrophobic agent trimethoxy (propyl) silane and mixed polyethylene glycol methyl ether have shown effective retention and wettability alteration properties, particularly in oil-wet substrates due to hydrophobic interaction.
Article
Energy & Fuels
Fabio Bordeaux-Rego, Mehran Mehrabi, Alireza Sanaei, Kamy Sepehrnoori
Summary: The study aims to improve and validate a physically based model for predicting rock contact angles; a new surface complexation model is proposed considering the charge interactions among rock, oil, and brine; contact angles are estimated using disjoining pressure calculations and validated against experimental data in the literature.
Article
Environmental Sciences
Chongchong Qi, Xinhang Xu, Qiusong Chen, Hui Liu, Xiaobo Min, Andy Fourie, Liyuan Chai
Summary: This study investigated the adsorption behavior of four heavy metal atoms (As, Cd, Cr, and Hg) on the illite(001) surface using density functional theory calculations. The research found that illite preferentially adsorbs As among the four investigated heavy metal atoms. Additionally, the electronic transfer between the surface atoms and the heavy metal atoms influences the adsorption energy.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geosciences, Multidisciplinary
Mohammad Gholinezhadateni, Behzad Rostami
Summary: This study investigated the wettability alteration of the calcite surface using different aqueous phases and advanced surface analysis tools. The results showed significant effects of different aqueous phases on surface adsorption of carboxylic components, with the adsorption controlled by interactions of negative ions formed during carboxylic acid dissociation with positive salt ions in brine solvents.
NATURAL RESOURCES RESEARCH
(2021)
Article
Engineering, Environmental
Liang Wang, Sijia Ni, Hao Wang, Yiwei Sun, Shenguang Fu, Chenhao Tian, Yuechen Zhao, Jintuo Zhu, Rongkun Pan
Summary: In this study, alkyl polyglycoside (APG) and polyacrylamide (PAM) were used to enhance wetting and convert medium wettability. The effects of these reagents on the wettability alteration mechanism and desorption characteristics of coal were investigated. The results showed that APG treatment increased the surface energy, hydrogen bonds, and oxygen-containing functional groups of coal, while PAM treatment had the opposite effect. Increasing the number of hydrogen bonds and oxygen-containing functional groups improved wettability and reduced the interaction force between coal and methane molecules. APG and PAM promoted gas desorption, with APG treatment yielding better results.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Biotechnology & Applied Microbiology
Norah Albenayyan, Mobeen Murtaza, Sulaiman A. Alarifi, Muhammad Shahzad Kamal, Abdulmohsen Humam, Manar M. AlAhmari, Amjad Khalil, Mohamed Mahmoud
Summary: The production of sand during oil and gas extraction is a major challenge for companies in this industry, causing pipeline erosion, valve damage, pump malfunction, and reduced production. Various methods, including chemical and mechanical means, are being implemented to control sand production. Recent research in geotechnical engineering has focused on the use of enzyme-induced calcite precipitation (EICP) techniques to strengthen sandy soil. This technique involves the enzymatic precipitation of calcite in loose sand, providing stiffness and strength. This study investigates the EICP process using a new enzyme called alpha-amylase, examining parameters such as enzyme concentration, temperature, salt concentrations, and pH to optimize calcite precipitation. The findings demonstrate the significant advantages of alpha-amylase in EICP and pave the way for further research on precipitation mechanisms involving calcite and dolomite.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Xiao Deng, Muhammad Shahzad Kamal, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Dhafer Al-Shehri, Emad W. Al-Shalabi
Summary: Interfacial tension (IFT) reduction and wettability alteration (WA) are important mechanisms for enhanced oil recovery (EOR). They work together to release trapped oil in oil-wet formations. However, studies have shown conflicting observations about their coupled effect, necessitating further research. This study used oil-aged Indiana limestone samples to represent oil-wet carbonate rocks and conducted tests to assess wettability and IFT. Results showed that higher IFT values and stronger WA performance led to faster and higher oil recoveries. The importance of IFT reduction was enhanced in higher permeability conditions, while the importance of WA was enhanced in lower permeability conditions.
Article
Energy & Fuels
M. Elmuzafar Ahmed, Abdullah S. S. Sultan, Muhammad Shahzad Kamal, Tinku Saikia, Mohamed Mahmoud, Shirish Patil, Mazen Kanj
Summary: This study evaluated a locally synthesized gemini surfactant with high stability, salt tolerance, and CEOR potential for reducing interfacial tension and enhancing oil recovery. The study found that as the gemini surfactant concentration increased, the interfacial tension also increased. The lowest interfacial tension value of 0.12 mN/m was obtained at a concentration of 0.0005 wt%, while the highest value of 0.84 mN/m was recorded at concentrations of 0.5 and 1 wt%. The highest ultimate recovery of 50.26% was achieved at a concentration of 0.005% GmS.
Article
Energy & Fuels
Amro Othman, Zeeshan Tariq, Murtada Saleh Aljawad, Bicheng Yan, Muhammad Shahzad Kamal
Summary: The researchers conducted rheology experiments to optimize fracture fluid viscosity in high salinity mediums. Through machine learning models, they found that the feedforward neural network outperformed other models in predicting viscosity with 95% accuracy.
Article
Energy & Fuels
Abubakar Isah, Mohamed Mahmoud, Muhammad Arif, Murtada Saleh Aljawad, Muhammad Shahzad Kamal
Summary: This study examines the effect of rock surface cleaning on the wettability of rock/oil/brine systems using pure quartz substrates. The results suggest that cleaning agents may not completely remove all adsorbed salts and crude oil components from the rock surfaces and may also adsorb onto the surfaces themselves, altering wettability. Surface energy and the presence of oxygen-containing and nonpolar functional groups play a significant role in determining the wetting behavior.
Review
Energy & Fuels
Xiao Deng, Xianmin Zhou, Shirish Patil, Ridha Al-Abdrabalnabi, Sarmad Khan, Murtada Saleh Aljawad, Mohamed Mahmoud, Muslim Abdurrahman, Muhammad Shahzad Kamal
Summary: Micro-CT is a nondestructive visualization tool that can capture multiphase flow dynamics inside opaque rocks. It provides real-time fluid and interface distribution through 3D visualizations and allows for obtaining pore-scale information. Micro-CT can record information without disturbing the flow system, enabling the dynamic study of multiphase flows. This technique is crucial for understanding microscopic displacement mechanisms and oil recovery.
Article
Energy & Fuels
Shams Kalam, Sidqi A. Abu-Khamsin, Shirish Patil, Mohamed Mahmoud, Muhammad Shahzad Kamal, Mobeen Murtaza, Kishore K. Mohanty
Summary: Surfactant flooding is an effective method to enhance oil recovery, but the loss of surfactant due to adsorption on reservoir rocks hinders its efficiency. This study investigates the use of formic acid to reduce the adsorption of cationic gemini surfactant on carbonate rocks. The results show that the addition of 1% formic acid dramatically reduces the surfactant's adsorption on carbonate rocks. It is believed that the carboxyl group released by the formic acid-rock reaction shields the surfactant from the rock surface, resulting in lower adsorption. This study provides a low-cost option for reducing cationic surfactant adsorption on carbonate rocks.
Article
Multidisciplinary Sciences
Shams Kalam, Sidqi A. Abu-Khamsin, Afeez Olayinka Gbadamosi, Shirish Patil, Muhammad Shahzad Kamal, Syed Muhammad Shakil Hussain, Dhafer Al-Shehri, Emad W. Al-Shalabi, Kishore K. Mohanty
Summary: This study investigated the synergistic application of low salinity water and a cationic gemini surfactant in carbonate rock. The results showed that low salinity water can significantly reduce the adsorption of the surfactant, thus improving the effectiveness and economic feasibility of chemical enhanced oil recovery (cEOR) techniques.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Kamal Omarov, Sulaiman A. Alarifi, Mohamed Mahmoud, Muhammad Shahzad Kamal, Mobeen Murtaza, Abdulmohsen Humam, Manar M. AlAhmari
Summary: Sand production is a significant issue in the oil and gas industry. Enzyme-induced carbonate precipitation (EICP) is an environmentally friendly method for sand consolidation. This study investigates the effect of high temperature on EICP reaction and its efficiency in consolidating different types of sand samples. The results show that high temperature does not hinder the efficiency of the reaction and can even enhance it with the optimal concentration of reactants. The study also discusses the controllability of the reaction in relation to temperature, which favors the application of EICP.
SCIENTIFIC REPORTS
(2023)
Review
Energy & Fuels
Afeez O. Gbadamosi, Nasiru S. Muhammed, Shirish Patil, Dhafer Al Shehri, Bashirul Haq, Emmanuel I. Epelle, Mohamed Mahmoud, Muhammad Shahzad Kamal
Summary: Underground hydrogen storage (UHS) has gained attention for its efficient storage of hydrogen on a large scale. This review provides insight into the hydrodynamics of injected hydrogen gas, reservoir fluids, and rock systems, as well as critical factors inherent to the reservoir that affect the UHS process. Understanding fluid-fluid and fluid-rock interactions is crucial for optimizing the storage and withdrawal efficiency of UHS.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Abubakar Isah, Muhammad Arif, Mohamed Mahmoud, Muhammad Shahzad Kamal
Summary: The effect of permeability, rocks surface/saturation condition and initial water saturation on Amott tests and contact angle measurements was investigated. The relationship between contact angle and Amott-Harvey wettability index (I-AH) was explored for different rocks. The findings show that rock surface wetting behavior depends on rock permeability and surface/saturation condition, and the correlation between contact angle and Amott index is only observed in rocks with moderate to high permeability.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Hafiz Mudaser Ahmad, Mobeen Murtaza, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Muhammad Shahzad Kamal
Summary: Three novel cationic surfactants (S1, S2, S3) were used to formulate water-based drilling formulations and assess their interactions with drilling fluids and well-bore formations. The chemical structure of the surfactants was evaluated through rheology, filtration experiments, particle size distribution analysis, and sedimentation tests. The surfactant-based formulations showed enhanced shale inhibition properties compared to conventional base mud formulations, with S1 surfactant displaying the best performance.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Shams Kalam, Sidqi A. Abu-Khamsin, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Muhammad Shahzad Kamal, Emad W. Al Shalabi
Summary: Surfactants are advantageous chemicals for enhanced oil recovery due to their ability to lower interfacial tension and modify wettability. However, their loss by adsorption on rock surfaces is a major drawback.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Jawad Al-Darweesh, Murtada Saleh Aljawad, Zuhair AlYousef, Ahmed BinGhanim, Muhammad Shahzad Kamal, Mohamed Mahmoud, Dhafer Al-Shehri
Summary: This research investigated the rheology of foamed acid using different amine-based surfactants at high pressure and high temperature. The study showed that Duomeen TTM had the highest foam viscosity and stability, while Ethoduomeen T/13 and Duomeen exhibited stable foam viscosity at a steady shear rate. The temperature had a major impact on foam viscosity, and all surfactants showed poor foamability under ambient conditions but generated high bubbles count with fine texture at HPHT.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Isah Mohammed, Ahmed Yaseri, Dhafer Al Shehri, Mohamed Mahmoud
Summary: This study evaluates the impact of mineralization process on the colloidal and electrokinetic characteristics of basaltic rock. The findings suggest that the electrical double layer effect and protonation of the silanol group play important roles in charge formation. The study also highlights the different effects of different precipitates on the electrokinetic characteristics of basaltic rock.
