Article
Engineering, Petroleum
Mukhtar Elturki, Abdulmohsin Imqam
Summary: Gas-enhanced oil recovery by nitrogen injection is efficient but may cause asphaltene deposition. This research focused on nitrogen impact on asphaltene precipitation in nanopores, leading to pore plugging and reduced oil recovery. Increasing nitrogen injection pressure and longer mixing time resulted in higher asphaltene content, causing significant pore plugging.
Article
Energy & Fuels
Raul Gimenez-Aguirre, Javier Dufour, Jose A. Calles, Javier Marugan
Summary: This paper investigates a measurement technique to determine the asphaltene aggregation onset, kinetics, and size-related parameters, and explores the action of several commercial additives as inhibitors.
Article
Multidisciplinary Sciences
Syed Imran Ali, Shaine Mohammadali Lalji, Muhammad Rizwan, Zahoor Awan, Saud Hashmi, Syed Danish Rasool
Summary: The flow properties of crude oil can be improved by increasing temperature or diluting the oil with lower molecular weight hydrocarbons. However, these operational changes often lead to asphaltene deposition problems. In this study, a two-level full factorial design was applied to investigate the effect of three experimental parameters on the yield of asphaltene weight percentage. The results showed that dilution ratio has a significant positive effect, while molecular weight of precipitant and temperature have a moderate negative effect on the response variable. The study provides a useful methodology for optimizing production parameters.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Zhuqing Zhang, Alyssa Perrard, Siwar Trabelsi, Sibani Lisa Biswal
Summary: This study compared the efficiency of D-limonene with other solvent-based microemulsions for removing asphaltene deposits. The results showed that all tested microemulsions had higher removal efficiency than the control formulation, with the type and amount of solvent strongly influencing the rate and amount of removal. The most effective formulations followed a pseudosecond-order desorption kinetic model, supporting a mechanism where the microemulsions solubilize the asphaltene deposits.
Review
Energy & Fuels
Isah Mohammed, Mohamed Mahmoud, Dhafer Al Shehri, Ammar El-Husseiny, Olalekan Alade
Summary: The deposition of asphaltene in reservoirs and pipelines leads to serious flow assurance challenges with significant economic implications. Various preventive and corrective measures have been proposed, but the discussion on the best model and cost-effective prevention strategy is ongoing.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
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.
Review
Energy & Fuels
Camilo Andres Guerrero-Martin, Daniel Montes-Pinzon, Mariana Meneses Motta da Silva, Erik Montes-Paez, Laura Estefania Guerrero-Martin, Raul Salinas-Silva, Stefanny Camacho-Galindo, Elizabete Fernandes Lucas, Alexandre Szklo
Summary: Asphaltene precipitation/deposition is a formation damage problem that reduces oil recovery. It can also cause complications in pipeline and surface installations, leading to decreased oil production. Minimization of asphaltene precipitation can be achieved by reducing flowrate or using chemical inhibitors. Experimental and numerical methods are proposed for analyzing asphaltene stability and precipitation trends. Once risks of precipitation are established, strategies can be formulated for prevention and diagnosis. Testing with dead oil helps understand asphaltene behavior. This review focuses on the problems related to asphaltene precipitation, thermodynamic models, and asphaltene inhibition, control, and removal using nanoparticles.
Article
Energy & Fuels
Syed Imran Ali, Shaine Mohammadali Lalji, Javed Haneef, Usama Ahsan, Syed Mohammad Tariq, Syed Talha Tirmizi, Ramsha Shamim
Summary: The main goal of Petroleum Exploration and Production (E&P) companies is to achieve sustainable hydrocarbon production throughout the oil field life, but asphaltene precipitation and deposition pose a major challenge to this goal. Proper screening of asphaltene stability in crude oils can help predict stability accurately and plan preventive measures. Different dead and live oil screening techniques have their own limitations, risks, and advantages, and a detailed analysis and comparison can help in selecting the best technique for monitoring asphaltene stability in crude oils.
Article
Energy & Fuels
Zhen Li, Ke Gong, Junfeng Wang, Yujian Hao, Youguo Yan, Jun Zhang
Summary: This study investigated the behavior of asphaltene aggregation in gas flooding using molecular dynamic simulations. The results showed that the degree of asphaltene aggregation is high in CO2 flooding and increases with decreasing temperature, providing insights into controlling asphaltene precipitation in gas flooding.
Article
Energy & Fuels
Isah Mohammed, Dhafer Al Shehri, Mohamed Mahmoud, Muhammad Shahzad Kamal, Olalekan Saheed Alade, Abdullah Sultan, Shirish Patil
Summary: This study aims to investigate the impact of reservoir rock mineralogy on the structural characteristics of asphaltene molecules and how these characteristics affect remediation efforts. The results show that while the composition of asphaltene samples from different crude oil samples is similar, their structural makeup varies. Additionally, rock mineralogy has an influence on the structural characteristics of asphaltene, which in turn impacts the effectiveness of remediation fluids in clearing up asphaltene deposits.
Article
Energy & Fuels
Ronald Nguele, Hikaru Hirota, Yuichi Sugai, Kyuro Sasaki
Summary: The study indicates that the use of polymer-based nanofluid can effectively reduce asphaltene adsorption in CO2 oil recovery, with nanofluid exhibiting superior interfacial tension reduction compared to water, and can reduce asphaltene adsorption by providing steric hindrance.
Review
Chemistry, Physical
Alireza Talebi, Masoud Shafiei, Yousef Kazemzadeh, Mehdi Escrochi, Masoud Riazi
Summary: The deposition and precipitation of asphaltene in the reservoir are natural. Different methods, including prevention and treatment, are used to deal with this problem. Treatment of asphaltene precipitation is expensive and has limitations, therefore prevention is recommended. Nanoparticles and nanofluids are effective in inhibiting asphaltene deposition and precipitation due to their unique properties.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Maria Mihailescu, Adina Negrea, Mihaela Ciopec, Petru Negrea, Narcis Duteanu, Ion Grozav, Paula Svera, Cosmin Vancea, Alina Barbulescu, Cristian Stefan Dumitriu
Summary: The study optimized the gold recovery from residual solutions using Am-L-GA through factorial design experiment. It was found that the initial gold concentration plays a critical role in the adsorption process, while contact time has a slightly positive effect, and pH and temperature do not influence the adsorption capacity.
Article
Energy & Fuels
Amir Hossein Nikoo, Mojtaba Ghaedi, M. Reza Malayeri, Masoud Riazi
Summary: The objective of this study was to determine how asphaltene particles that interact with casing surfaces may clog well columns and to investigate the impact of factors such as particle size, production rate, and casing material on wellbore clogging. The extended Derjaguin-Landau-Verwey-Overbeek (XLDVO) interaction theory and surface properties were used to analyze the depth of well column based on measurements of the contact angle. The findings revealed that asphaltene deposition can be determined at a specific depth of the well column and that clogging risk decreases with an increase in particle size and production rate.
Article
Energy & Fuels
D. S. Tananykhin, I. A. Struchkov, A. Khormali, P. Roschin
Summary: This paper investigates the deposition of asphaltenes in the porous medium of a studied Russian field and predicts production profiles based on uncertainty evaluation. The study finds that under natural depletion, asphaltene deposition decreases the productivity of production wells, while water injection into the aquifer can significantly reduce the volume of asphaltene phase transitions and positively affect cumulative oil production.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2022)