Article
Engineering, Chemical
Afshin Tatar, Ali Shafiei
Summary: By collecting 1439 data samples, machine learning models were developed as predictive tools to accurately predict asphaltene precipitation for a wide range of pressure and crude oil properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Javad Ebrahimi, Behnam Shahsavani, Mojtaba Ghaedi, M. Reza Malayeri, Masoud Riazi
Summary: This study presents a systematic screening approach to evaluate the efficacy of different inhibitors for two crude oils with high asphaltene content. Results show that DBSA is the most efficient inhibitor, but its applicability is limited in cases where both water production and asphaltene deposition occur simultaneously. Additionally, dispersant 110 demonstrates superior dispersion capabilities under low centrifugal force. Overall, dispersant 110 shows the most promising performance in different test methods.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Ivan Moncayo-Riascos, Christian Guerrero-Benavides, Juliana Giraldo, Oscar Ramirez-Jaramillo, Fernando A. Rojas-Ruiz, Jorge A. Orrego-Ruiz, Cristiam Cundar, Wilson A. Canas-Marin, Raul Osorio Gallego
Summary: A machine learning-based classification model and a linear regression model were proposed in this study to predict the risk of asphaltene damage and the asphaltene onset pressure. Through experimental evaluation and comparison, the accuracy and effectiveness of these models were demonstrated. The integrated model contributes to predicting and preventing the decline in oil production caused by asphaltene precipitation.
Article
Energy & Fuels
Ato Kwamena Quainoo, Abdulmohsin Imqam
Summary: The employment of predictive techniques combining kinetic and thermodynamic analyses is crucial for controlling asphaltene precipitation during crude oil production. This study investigates the long-time kinetics of asphaltene precipitation using a model oil and confirms the significant impact of temperature, rotation speeds, and precipitant concentrations on asphaltene yields and sizes. The findings contribute to enhancing the predictability of asphaltene-related issues in oil production.
Article
Energy & Fuels
Ato Kwamena Quainoo, Abdulmohsin Imqam
Summary: The employment of predictive techniques combining kinetic and thermodynamic analyses is an effective solution to control asphaltene precipitation during crude oil production. This study found that temperature, rotation speeds, and precipitant compositions significantly affected asphaltene precipitation and were influenced by time. Increasing temperature reduced asphaltene yields and particle size, while rotation speeds showed an inverse relationship. These findings contribute to enhancing the predictability of a production route devoid of asphaltene-related problems.
Article
Energy & Fuels
Yapeng Tian, Zhan Qu, Ping Wang, Nannan Liu, Binshan Ju, Jie Zhan, Mingxian Wang, Yintao Dong
Summary: This study is the first to use the modified Peng-Robinson equation of state (PR-EOS) considering fluid-solid interaction to study the effect of wettability on asphaltene precipitation in CO2 injection into shale reservoirs. The results show that wettability plays a significant role in asphaltene precipitation, and there is a coupling effect between wettability and CO2 in shale oil.
Article
Chemistry, Physical
Mischelle P. Santos, Marcio L. L. Paredes, Eduardo R. A. Lima
Summary: This study investigated the onset of flocculation of asphaltenes and the effect of temperature on the destabilization of shale oil using optical microscopy. The results showed that the volume of larger particles increased after cooling, indicating an irreversible phenomenon. Theoretical analysis revealed that proper parameterization of the model could predict stability changes as a function of temperature. This research provides new insights into the microscopic interactions in asphaltene systems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Kheira Gharbi, Chahrazed Benamara, Khaled Benyounes, Malcolm A. Kelland
Summary: The study highlights the importance of separating the acidic and basic fractions of asphaltenes in order to understand their structure and influence on the selection and mechanism of asphaltene inhibitors. Results indicate that the acid and base fractions of asphaltenes contain aromatic and polar compounds with specific functional groups such as carboxylic acids, phenols, amines, and aliphatic chains.
Article
Energy & Fuels
Mitchell Huffman, H. Scott Fogler
Summary: Asphaltenes are molecules in crude oil that can be dissolved in aromatic solvents but precipitate in the presence of n-alkanes. There are a large number of different molecules classified as asphaltenes in crude oil. Experimental results showed that the amphiphile head group has an effect on asphaltene destabilization and aggregation.
Article
Chemistry, Multidisciplinary
Saad F. F. Alkafeef, Salem S. S. Al-Marri
Summary: Resin molecules are crucial for the stability of colloidal asphaltene particles in petroleum reservoirs. Changes in thermodynamic parameters can cause asphaltene precipitation, leading to problems such as decreased permeability and severe plugging in oil production facilities. Developing synthetic resins with enhanced chemical potential can increase asphaltene stability, but predicting compatibility is challenging. This study investigates the stability of asphaltene and oil recovery using oil pre-fractionation and solvent deasphalting techniques, and finds that resin concentration and aromatic power solvency can enhance stability and permeability without formation damage.
Article
Chemistry, Multidisciplinary
Xiaoqing Li, Dandan Liu, Hao Sun, Xiaobing Li
Summary: The effect of oil-displacing agent composition on the oil/water interface stability of asphaltene-rich ASP flooding-produced water was investigated. Molecular dynamics simulation and experimental tests were conducted to study the adsorption behavior of oil displacement agents and asphaltenes on the interface, as well as the variations in interfacial properties. The results showed that the interaction between oil displacement agents and asphaltenes enhanced the interfacial film strength and impeded the oil/water separation process.
Article
Energy & Fuels
Reza Salehi Nezhad, Amin Kiomarsiyan, Houman Darvish
Summary: In this study, the impacts of various effective parameters and inhibitors on asphaltene deposition rate were investigated. The abilities of SDS, Triton X-100, and salicylic acid in reducing asphaltene deposition were evaluated. The experiments showed that SDS performed better than salicylic acid and Triton X-100. Furthermore, the effect of SDS concentration on the rate of deposition was studied, revealing that an increase in SDS concentration decreased the rate of asphaltene deposition. This study can serve as a helpful tool for petroleum engineers dealing with asphaltene deposition problems.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Petroleum
Mohammed A. Ahmed, Ghassan H. Abdul-Majeed, Ali K. Alhuraishawy
Summary: This paper provides a comprehensive review of asphaltene precipitation and deposition, focusing on its characteristics, behavior, and the strategies for determining onset AP. The study also includes an analysis of measured Iraqi asphaltene data. The findings will contribute to a better understanding of asphaltene and serve as a reference for future studies.
SPE PRODUCTION & OPERATIONS
(2023)
Article
Energy & Fuels
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Ali Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: This study synthesized Fe2O3 and functionalized SiO2 nanoparticles to investigate their effects on asphaltene precipitation and aggregation in live oils. The results showed that Fe2O3 nanoparticles better controlled asphaltene precipitation compared to F-SiO2, leading to increased stability and reduced asphaltene structure size. TEM images confirmed these results and indicated an increase in aromatic sheet interlayer spacing.
Article
Energy & Fuels
Zuguo Yang, Xinpeng Wu, Jixiang Guo, Jianjun Zhang, Ruiying Xiong, Lei Liu, Wyclif Kiyingi
Summary: Some oil wells in the Tahe oilfield produce extremely heavy oil due to asphaltene deposition. To improve the flow of crude oil, engineers use light oil to dissolve the heavy crude, which has led to accelerated asphaltene deposition and wellbore blockage. This research explores the factors influencing the stability of diluted heavy oil, temperature, and mixing ratio on asphaltene deposition characteristics under high pressure.
Article
Engineering, Chemical
Saber Mohammadi, Fariborz Rashidi, Sayed Ali Mousavi-Dehghani, Mohammad-Hossein Ghazanfari
PARTICULATE SCIENCE AND TECHNOLOGY
(2020)
Article
Energy & Fuels
Amir Hosein Saeedi Dehaghani, Bahareh Keshavarz, Seyed Ali Mousavi Dehghani
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2019)
Article
Energy & Fuels
Nasser M. Al Hinai, Matthew B. Myers, Ali Mousavi Dehghani, Colin D. Wood, R. Valdez, Fayang Jin, Quan Xie, A. Saeedi
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Thermodynamics
Mohammad Massah, Ehsan Khamehchi, Seyyed Ali Mousavi-Dehghani, Bahram Dabir, Hamid Naderan Tahan
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2020)
Article
Energy & Fuels
Seyed Abdollah Shojaei, Shahriar Osfouri, Reza Azin, Seyed Ali Mousavi Dehghani
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2020)
Article
Chemistry, Physical
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Alimorad Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: The study showed that the synthesized MWCNT-Fe2O3 nanocomposite can effectively control the precipitation and aggregation of asphaltene, improving the stability and flow properties of crude oil.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Ali Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: This study synthesized Fe2O3 and functionalized SiO2 nanoparticles to investigate their effects on asphaltene precipitation and aggregation in live oils. The results showed that Fe2O3 nanoparticles better controlled asphaltene precipitation compared to F-SiO2, leading to increased stability and reduced asphaltene structure size. TEM images confirmed these results and indicated an increase in aromatic sheet interlayer spacing.
Article
Chemistry, Physical
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Alimorad Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: Synthesized single-walled carbon nanotubes (SWCNTs) effectively delay asphaltene precipitation and reduce the size distribution of asphaltene aggregates. The highest dispersion efficiency value of 93.5% is achieved at a concentration of 100 ppm. The large surface area of SWCNTs and strong pi-pi interactions with asphaltenes contribute to their efficient control of asphaltene precipitation/aggregation.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Fatemeh Mahmoudi Alemi, Saber Mohammadi, Seyed Ali Mousavi Dehghani, Alimorad Rashidi, Negahdar Hosseinpour, Abdolvahab Seif
Summary: In this study, a new class of carbon nanoparticles (CNPs) was synthesized to inhibit/disperse asphaltene precipitation and aggregation in unstable crude oil. Experimental and theoretical results demonstrate that CNPs have high specific surface area and strong chemisorption capability, making them an effective asphaltene handling strategy.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Seyed Hossein Hashemi, Seyed Ali Mousavi Dehghani, Seyed Ehsan Samimi, Mahmood Dinmohammad, Seyed Abdolrasoul Hashemi
MODELING EARTH SYSTEMS AND ENVIRONMENT
(2020)
Article
Energy & Fuels
Mahboobeh Kiani, Shahriar Osfouri, Reza Azin, Seyed Ail Mousavi Dehghani
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Meisam Kamalipour, Seyyed Ali Mousavi Dehghani, Ali Naseri, Saeed Abbasi
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2018)
Article
Engineering, Chemical
Seyed Hossein Hashemi, Seyed Ali Mousavi Dehghani, Abdolhamid Khodadadi, Mahmood Dinmohammad, Seyed Mohsen Hosseini, Seyed Abdolrasoul Hashemi
KOREAN CHEMICAL ENGINEERING RESEARCH
(2017)
Article
Thermodynamics
Mahdi Zeinali Hasanvand, Reza Mosayebi Behbahani, Farzaneh Feyzi, Seyedali Mousavi-Dehghani
HIGH TEMPERATURES-HIGH PRESSURES
(2017)
Article
Energy & Fuels
Mahdi Zeinali Hasanvand, Farzaneh Feyzi, Reza Mosayebi Behbahani, Seyed Ali Mousavi Dehghani
INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY
(2018)
