Article
Engineering, Petroleum
I. W. R. Saputra, D. S. Schechter
Summary: This study introduces a new oil-composition-based IFT correlation that can be used for shale-crude-oil samples. The research reveals that most crude oils from unconventional reservoirs contain little to no asphaltic material. Furthermore, the study provides a thorough investigation on the impact of oil components, salinity, temperature, and their interactions on oil/water IFT.
Article
Energy & Fuels
Kaiqiang Zhang, Apostolos Georgiadis, J. P. Martin Trusler
Summary: Interfacial tensions (IFTs) between crude oil and water or brine systems are critically important in many processes. This study provides a large database of crude oil-water/brine IFTs at different temperatures and pressures. The effects of temperature, pressure, and fluid composition on IFTs were evaluated and the dynamic evolution of IFTs was categorized and described.
Article
Engineering, Chemical
Menad Nait Amar
Summary: In this study, new explicit correlations for estimating the interfacial tension of pure/impure CO2-brine systems were developed using genetic programming, achieving high agreement with real measurements and outperforming existing models. The newly implemented correlations accurately captured the physics sense of the system's behavior under changes in independent variables, showing great potential for applications in carbon capture and sequestration processes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Physical
Saeed Zaker, Roohollah Parvizi, Ebrahim Ghaseminejad, Amin Moradi
Summary: This study focuses on the injection of dissolved CO2 in water into oil reservoirs, comparing it with direct injection methods, and investigating the impact of sulfate anions on dynamic interfacial tension changes. The results suggest that temperature and pressure play significant roles in the IFT variation between crude oil and carbonated brine solutions.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Fatemeh Motraghi, Abbas Khaksar Manshad, Majid Akbari, Jagar A. Ali, S. Mohammad Sajadi, Stefan Iglauer, Alireza Keshavarz
Summary: In this study, the effect of mutual solvents and nanocomposites on the reduction of interfacial tension (IFT) as a mechanism of enhanced oil recovery (EOR) was examined. It was found that the combination of mutual solvents, nanocomposites, and smart water showed the best effect in reducing IFT. The addition of solvents to water and nanofluids has a good potential to reduce IFT in reservoirs with high temperature and high salinity conditions.
Article
Chemistry, Physical
Mohammad Barari, Mostafa Lashkarbolooki, Reza Abedini
Summary: The investigation focused on new families of ionic liquid (IL) based surfactants for enhanced oil recovery. Imidazolium based ILs with different alkyl chain lengths were synthesized and their effects on interfacial tension, emulsification, and wettability alteration were examined. Results showed different responses to NaCl and Na2SO4 salts based on the alkyl chain length of the ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Mohsen B. Horeh, Kamran Hassani, Behzad Rostami, Salman Ghorbanizadeh
Summary: The solubility of amphiphilic compounds of acidic crude oil in water significantly reduces the surface and interfacial tension. The increase in ionic strength of water with NaCl and Na2SO4 salts results in minimizing surface and IFT within a certain range, while the effect of CaCl2 and MgCl2 salts is delayed at high salinity levels. Additionally, divalent cations reduce tension rate compared to monovalent cations, and the pH of salt water shows an acidic trend due to the solubility of acidic and basic groups. The results were confirmed by FTIR tests.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Majid Safaei-Farouji, Hung Vo Thanh, Danial Sheini Dashtgoli, Qamar Yasin, Ahmed E. Radwan, Umar Ashraf, Kang-Kun Lee
Summary: This study used intelligent models to forecast the interfacial tension (IFT) in the CO2-brine system, with the random forest (RF) model performing the best. Sensitivity analysis identified the significant impact of pure and non-pure CO2 systems on the predictions. Additionally, the RF model was used to assess the structural trapping capacity of a specific storage location.
Article
Energy & Fuels
Rukuan Chai, Yuetian Liu, Yuting He, Mingjun Cai, Jialiang Zhang, Feifei Liu, Liang Xue
Summary: Crude oil-aqueous solution interactions play a significant role in low-salinity waterflooding, with core flooding experiments showing that adjusting the ionic composition of the aqueous solution can impact enhanced oil recovery. The ionic composition of aqueous solutions greatly influences these interactions, with specific ions preferentially interacting with acidic polar molecules to enhance the interactions. Mg2+, Ca2+, and Na+ have positive effects, while SO42- shows no positive effect and can reduce the impact of cations on crude oil-aqueous solution interactions.
Article
Computer Science, Information Systems
Angel Delgado-Panadero, Beatriz Hernandez-Lorca, Maria Teresa Garcia-Ordas, Jose Alberto Benitez-Andrades
Summary: This paper proposes a feature contribution method for GBDT, which can calculate the contribution of each feature to predictions. The method not only serves as a local explainability model for GBDT, but also reflects its internal behavior. It is significant for ethical analysis of AI and compliance with relevant regulations.
INFORMATION SCIENCES
(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
Ankur Gupta, Anurag Pandey, Himanshu Kesarwani, Shivanjali Sharma, Amit Saxena
Summary: The study utilizes the pendant drop method and a Python-based computer program to automatically determine interfacial tension and contact angle for reservoir fluid characterization, showing promising results with a standard deviation of less than 1.7 mN/m. This approach provides a convenient and efficient way to analyze surface properties in petroleum industries.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Energy & Fuels
Jordy Sarmas-Farfan, Bryan X. Medina-Rodriguez, Vladimir Alvarado
Summary: The chemical composition of the aqueous phase is important in water-based enhanced-oil recovery processes. The ionic profile of the aqueous phase affects the snap-off response of a crude oil-brine system. Solutions with higher ionic strength form more rigid interfaces, while solutions with polyvalent anions in the low-salinity regime produce more viscoelastic interfaces at faster rates. There is an excellent correlation between the relative stability of the interfacial film predicted in liquid bridge tests and the ratio of interfacial tension and interfacial elastic modulus.
Article
Energy & Fuels
Yarima Mudassir Hassan, Beh Hoe Guan, Lee Kean Chuan, Ahmed Halilu, Mohammed Adil, Abdullahi Abbas Adam, Bashir Abubakar Abdulkadir
Summary: Metal oxide nanoparticles play an important role in enhanced oil recovery. However, the agglomeration of nanoparticles in reservoirs hinders their performance. Injecting nanoparticles in the form of nanofluids under the influence of an electromagnetic field can improve their mobility. In this study, a new ZnOFe2O3/SiO2 nanofluid was synthesized and characterized, and its positive impact on interfacial tension and wettability was demonstrated.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Genetics & Heredity
Shahid Mohammad Ganie, Pijush Kanti Dutta Pramanik, Majid Bashir Malik, Saurav Mallik, Hong Qin
Summary: This study successfully predicted diabetes using machine learning algorithms with a high accuracy rate, and gradient boosting algorithm achieved the best performance among all classifiers. The results demonstrate the applicability of the suggested model for other diseases with similar predicate indications.
FRONTIERS IN GENETICS
(2023)
Article
Energy & Fuels
Cuthbert Shang Wui Ng, Ashkan Jahanbani Ghahfarokhi, Menad Nait Amar
Summary: In the petroleum domain, optimizing hydrocarbon production is crucial for economic prospects and meeting global energy demand. This paper demonstrates the development of proxies using a machine learning technique (LSTM) for a 3D reservoir model, and their successful application in production optimization. The proxies show high accuracy and computational efficiency compared to numerical reservoir simulation.
Article
Thermodynamics
Reza Nakhaei-Kohani, Saeid Atashrouz, Fahimeh Hadavimoghaddam, Ali Abedi, Karam Jabbour, Abdolhossein Hemmati-Sarapardeh, Ahmad Mohaddespour
Summary: This study used machine learning methods such as Deep belief network (DBN), Categorical boosting (Cat-Boost), Multivariate adaptive regression splines (MARS), and Extreme gradient boosting (XGB) to estimate the solubility of oxygen in ionic liquids (ILs). The results showed that the DBN model performed the best in the first strategy, while the XGB model performed the best in the second strategy. It was also found that pressure had the greatest effect on the solubility of oxygen in ILs.
FLUID PHASE EQUILIBRIA
(2023)
Article
Energy & Fuels
Qichao Lv, Tongke Zhou, Rong Zheng, Reza Nakhaei-Kohani, Masoud Riazi, Abdolhossein Hemmati-Sarapardeh, Junjian Li, Weibo Wang
Summary: In this study, two simple-to-use white-box models, GEP and GMDH, were developed to predict the solubility of CO2-N-2 gas mixtures in water. Tuned equations of state (EOSs) and the outcomes of the models were compared. The results showed that the tuned EOSs performed better and the GMDH model had the best predictive performance.
Article
Chemistry, Physical
Fahimeh Hadavimoghaddam, Mohammad -Reza Mohammadi, Saeid Atashrouz, Ali Bostani, Abdolhossein Hemmati-Sarapardeh, Ahmad Mohaddespour
Summary: This study used genetic programming and group method of data handling to estimate the solubility of hydrogen in alcoholic solvents. The results showed that the GMDH model provided the most accurate estimation, with pressure, temperature, and molecular weight of alcohols being the key factors influencing the solubility.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Multidisciplinary Sciences
Sajjad Ansari, Mohammad-Reza Mohammadi, Hamid Bahmaninia, Abdolhossein Hemmati-Sarapardeh, Mahin Schaffie, Saeid Norouzi-Apourvari, Mohammad Ranjbar
Summary: In this research, the adsorption of asphaltenes on magnetite, hematite, calcite, and dolomite nanoparticles in the presence and absence of water was investigated. The results showed that the nitrogen content and aromaticity of asphaltenes are the most important parameters affecting their adsorption onto the nanoparticles, with iron oxide nanoparticles having the highest adsorption capacity. This research provides important insights into the phenomenon of asphaltene adsorption and the role of iron oxide and lime nanoparticles in solving this problem.
SCIENTIFIC REPORTS
(2023)
Article
Green & Sustainable Science & Technology
Qichao Lv, Tongke Zhou, Yingting Luan, Rong Zheng, Xinshu Guo, Xiaoming Wang, Abdolhossein Hemmati-Sarapardeh
Summary: A novel green foam was prepared by combining cellulose nanofibrils (CNFs) and camellia oleifera saponin (COS), which showed stable encapsulation of CO2 and inhibited its diffusion. The foam exhibited high viscosity and stability at the pore-scale, controlling the mobility of the foam and significantly improving CO2 saturation in aquifers and oil reservoirs.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Mahdi Abdi-Khanghah, Arezou Jafari, Goodarz Ahmadi, Abdolhossein Hemmati-Sarapardeh
Summary: A comprehensive study on the composition variation and kinetic of upgrading reactions during microwave-assisted hydrocarbon upgrading was conducted. Experimental results showed that microwave radiation could significantly reduce asphaltene and resin content, and produce gas. Kinetic modeling revealed that at lower oil temperature, aromatic upgrading rate was higher than resin and asphaltene, while increasing oil temperature or radiation exposure time increased asphaltene and resin conversion rate. Based on the kinetic modeling results, it was found that aromatic conversion to gases and resin conversion to aromatics were the dominant mechanisms before and after 8 minutes of radiation, respectively.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Chemical
Qichao Lv, Rong Zheng, Xinshu Guo, Aydin Larestani, Fahimeh Hadavimoghaddam, Masoud Riazi, Abdolhossein Hemmati-Sarapardeh, Kai Wang, Junjian Li
Summary: The energy demand is increasing globally, while concerns about global warming and greenhouse gases have also grown. Injecting CO2 into mature oil reservoirs is a promising solution to meet the rising demand and address environmental issues. Accurate knowledge of the CO2 minimum miscibility pressure (MMP) is crucial for the successful design of such operations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Seyed-Pezhman Mousavi, Reza Nakhaei-Kohani, Saeid Atashrouz, Fahimeh Hadavimoghaddam, Ali Abedi, Abdolhossein Hemmati-Sarapardeh, Ahmad Mohaddespour
Summary: In this study, various machine learning techniques were used to establish models for predicting the solubility of hydrogen sulfide in ionic liquids. The XGBoost model showed higher accuracy in calculating the solubility. Temperature and pressure had the highest negative and positive impact on the solubility, respectively. The chemical structure of the ionic liquids, such as the length of the cation alkyl chain and the fluorine content in the anion, also affected the solubility.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Haimin Zheng, Atena Mahmoudzadeh, Behnam Amiri-Ramsheh, Abdolhossein Hemmati-Sarapardeh
Summary: Carbon dioxide plays a vital role in enhanced oil recovery methods, but capturing it from flue gas and other sources is costly. In this study, machine learning algorithms were used to accurately estimate the viscosity of CO2-N2 mixtures, and the validity of the data and model applicability area were demonstrated through outlier detection.
Article
Thermodynamics
Qichao Lv, Ali Rashidi-Khaniabadi, Rong Zheng, Tongke Zhou, Mohammad-Reza Mohammadi, Abdolhossein Hemmati-Sarapardeh
Summary: In this study, five machine learning models based on Gaussian process regression (GPR) and Extreme gradient boosting (XGBoost) were developed to estimate the diffusion coefficient of CO2 in heavy crude oil/bitumen. The XGBoost model demonstrated the highest precision with an R2 of 0.9998 and an average absolute percent relative error of 0.68%. The trends analysis showed that the diffusion coefficient of CO2 in bitumen is a unimodal function of gas concentration, while temperature and pressure have increasing effects on the CO2 diffusion coefficient, which were accurately predicted by the XGBoost model.
Article
Energy & Fuels
Jafar Abdi, Tahereh Pirhoushyaran, Fahimeh Hadavimoghaddam, Seyed Ali Madani, Abdolhossein Hemmati-Sarapardeh, Seyyed Hamid Esmaeili-Faraj
Summary: Four machine learning models were implemented to predict the capacitance of EDLCs based on different properties. The results showed that the Super Learner (SL) model was the most accurate, with R2 values of 0.9781, 0.9717, and 0.9768 for training, testing, and total dataset, respectively. Among the properties, the specific surface area (SSA) was found to be the most important feature in determining the capacitance of carbon-based electrodes.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Behnam Amiri-Ramsheh, Reza Zabihi, Abdolhossein Hemmati-Sarapardeh
Summary: Crude oil consists of various compositions and materials, including hydrocarbons, oxygen, nitrogen, sulfur, and metals. Deposition of heavy components can restrict flow paths and decrease oil production rate. Wax deposition is a crucial issue that decreases the inner diameter of pipelines, leading to pressure drop in the oil reservoir and blockage of pipelines. This research focuses on developing intelligent models using pour point temperature and degrees API as input variables to predict wax deposition, utilizing smart networks and optimization algorithms. The developed GRNN smart model showed superior performance with accurate predictions and trend analysis, indicating the impact of pour point temperature and oil degrees API on wax deposition. Outlier detection was also conducted to identify abnormal data points.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Mahdi Abdi-Khanghah, Arezou Jafari, Goodarz Ahmadi, Abdolhossein Hemmati-Sarapardeh
Summary: In this study, the effect of reaction temperature and catalysts soaking time on the concentration distribution of upgraded oil samples was investigated using the response surface methodology (RSM) approach and multi-objective optimization. Statistical modeling was performed using experimental data, and correlations for predicting the concentration of different fractions were developed. The results showed good agreement between the RSM model and experimental data, with high coefficients of determination. The optimum upgrading condition, obtained through multi-objective optimization, was found to be 378.81 degrees C and 17.31 hours, with specific compositions for each fraction.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Younes Gholamzadeh, Mohammad Sharifi, Abdolhossein Hemmati-Sarapardeh, Yousef Rafiei
Summary: Surface phenomena between liquid-liquid phases, such as interfacial tension (IFT), play a significant role in the recovery factor of hydrocarbon reservoirs. Nanotechnology offers a promising chemical approach to enhance oil recovery by reducing IFT and altering wettability. SiO2 nanoparticles have been extensively studied for their low cost and good performance in wettability alteration. However, the mechanism of IFT changes under different asphaltene instabilities and in the presence of nanoparticles remains poorly understood.
GEOENERGY SCIENCE AND ENGINEERING
(2023)