Article
Mechanics
Shanzhe Zhang, Xiaorong Sun, Sining Yan, Cuiling Liu, Xinyang Miao, Kun Zhao
Summary: This paper investigates the use of laser technology to reduce the viscosity of high-viscosity oil. Through studying the changes in voltage, temperature, and viscosity under laser irradiation, as well as the effect of laser on the liquid, the importance of laser technology in viscosity reduction is highlighted.
Article
Energy & Fuels
Qian Huang, Hongying Li, Yu Zhuang, Yifei Ding, Chenbo Ma, Chaohui Chen, Yiwei Xie, Huaqing Liang, Shanpeng Han, Jinjun Zhang
Summary: The application of an electric field perpendicular to the flow direction can achieve viscosity reduction in waxy crude oil, similar to that obtained with an electric field parallel to the flow direction. Additionally, higher electric field strength and lower oil temperature result in more significant viscosity reduction, with viscosity recovering gradually after the electric field is removed.
Article
Energy & Fuels
Raheek I. Ibrahim, Manal K. Oudah, Amna M. Al-Mufti
Summary: The key idea of this study is to reduce the viscosity of Iraqi crude oil at low temperatures and enhance its rheological properties by adding graphene. The results show that under the optimal conditions, the dynamic viscosity of the crude oil can be significantly reduced and the mass flow rate can be improved.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Gang Chen, Zhichao Zhou, Xiaodan Shi, Xiaolong Zhang, Sanbao Dong, Jie Zhang
Summary: The study found that chromium alkylbenzenesulfonate and zinc alkylbenzenesulfonate are the most effective crude oil flow improvers, significantly reducing the viscosity and pour point of the crude oil, with promising application potential in enhancing heavy oil recovery.
Article
Energy & Fuels
Chaoyue Zhang, Jinjun Zhang, Jiabao Kang, Yiwei Xie, Shanpeng Han, Hongying Li
Summary: Electrical treatment is an emerging method to improve the cold flowability of waxy crude oil. This study investigates the effect of AC electric fields on the oil's viscosity and yield stress. The results show that AC electric fields can also improve the cold flowability, but to a lesser extent compared to DC fields. The frequency and waveform of the AC field have an impact on its electrorheological effect.
Article
Engineering, Petroleum
Cristhian Porcel, Jorge Luiz Biazussi, William Monte Verde, Valdir Estevam, Antonio Carlos Bannwart, Alexandre Tavares, Marcelo Paulino de Lima Santos, Paulo Sergio de M. Rocha
Summary: This study investigates the performance of a 10-stage ESP with ultraviscous oil and finds the existing correction performance models to be inaccurate. New empirical correlations are proposed to correct the ESP performance. Additionally, the test results show that the ESP can handle high-viscosity fluids.
Article
Chemistry, Multidisciplinary
Haijun Luo, Jiangbo Wen, Rong Jiang, Qianqian Shao, Zhihua Wang
Summary: This study investigates the influence of water cut on the viscosity characteristics of crude oil emulsion and establishes a prediction model for the phase inversion point. The results show that the viscosity of stable W/O emulsion decreases with increasing shear rate and temperature while increasing with the water cut. The viscosity of unstable O/W emulsion decreases with increasing shear rate, water cut, and temperature. The prediction model based on crude oil physical properties achieves a mean relative deviation of 2.9%.
Article
Energy & Fuels
Temurali Kholmurodov, Arash Tajik, Abdolreza Farhadian, Oybek Mirzayev, Pooya Tahay, Alexey V. Vakhin, Alimorad Rashidi
Summary: This study aims to fill the research gap of using aromatic ligands in catalyst synthesis for catalytic aquathermolysis of heavy oil. The developed oil-soluble catalyst (Ni-OSC) using catechol as a novel ligand effectively interacts with heavy oil fractions, reducing the content of resin and asphaltene and increasing the amounts of saturated and aromatic hydrocarbons. GC-MS analysis revealed an increase in low molecular weight hydrocarbons and a higher concentration of alkanes and aromatic hydrocarbons in the presence of Ni-OSC, improving the quality and recovery of heavy oil.
Article
Engineering, Environmental
Yihao Guan, Zhining Wang, Mutai Bao, Xiuping Chen, Limei Dong, Yun Shen, Yiming Li
Summary: Efficient and safe recovery of high-viscosity marine crude oil spills is a worldwide challenge. In this study, a superhydrophobic sponge with excellent performance was successfully prepared by polymerizing dopamine on the skeleton surface and coating it with light-absorbing Fe3O4 NPs-Graphene. The sponge exhibits superior vertical heat conductivity and oil absorption, and can be continuously heated using an electric heating device, making it suitable for recovering high-viscosity marine crude oil spills at night or in extreme weather.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Engineering, Chemical
Jiaqiang Jing, Yuying Guo, Rinat Karimov, Jie Sun, Wanni Huang, Yong Chen, Yuting Shan
Summary: With the depletion of conventional light crude oil, heavy crude oil will play an increasing role in the energy structure. Pipeline transportation of heavy crude oil faces a significant loss of frictional resistance, which needs to be addressed to decrease pump power consumption and improve transportation efficiency. Recently, there have been advancements in drag reduction technologies for heavy crude oil, but they have not been widely implemented in commercial pipelines. Therefore, it is important to discuss the breakthrough achievements and progress made in this field, as well as the advantages, disadvantages, and potential issues.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Jiaqiang Jing, Wen Shi, Qi Wang, Bangliang Zhang
Summary: This study investigates the viscosity-reduction mechanism of high-paraffin petroleum under low-intensity and long-term magnetic stirring. The research finds that magnetic orientation and disaggregation of wax crystals are the microscopic mechanism of magnetization, which can reduce viscosity. This study lays the theoretical foundation for the technical application of magnetic technology in petroleum transportation.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Article
Mechanics
Maria K. Papadimitriou, Pavlos S. Stephanou
Summary: In this paper, we propose a model to predict the rheological response of water-in-oil emulsions during crude oil extraction. The emulsions are modeled as deformable droplets using a determinant-preserving contravariant second-rank tensor. By employing the generalized bracket formalism of non-equilibrium thermodynamics, we ensure the thermodynamic admissibility of the derived model. The introduction of an additional scalar structural variable allows the prediction of a yielding point, with the predictions of the new model showing excellent agreement with experimental measurements.
Article
Chemistry, Physical
Jiawei Liu, Lin Li, Zhongzheng Xu, Jia Chen, Mingwei Zhao, Caili Dai
Summary: A CO2-responsive zwitterionic copolymer emulsifier was prepared for efficient emulsification and rapid phase separation of heavy oil/water emulsions. It showed great potential in various engineering applications including heavy oil exploitation and oil sands washing, which could contribute to reducing water pollution.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Bo Dong, Zongyu Qin, Yiwei Wang, Jiahui Zhang, Zhen Xu, Aixian Liu, Xuqiang Guo
Summary: This study investigates the performance of isooctyl glucoside as an emulsifier for a heavy crude oil-in-water emulsion and reveals that the viscosity and stability of the emulsion increase with increasing oil content, surfactant concentration, mixing speed, mixing time, and pH of the aqueous phase. The optimal parameters result in a significant reduction in viscosity and high stability of the emulsion.
Review
Engineering, Chemical
Ana M. Sousa, Henrique A. Matos, Maria J. Pereira
Summary: The study reviewed the main principles affecting emulsions, the influence of water fraction on flow patterns, the equations for estimating physical properties, and the methods for identifying or characterizing emulsions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)