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Dr. Afshin Davarpanah
Department of Mathematics, Aberystwyth University, Aberystwyth, UK

Basic Info


Research Keywords & Expertise

0 Heat Transfer
0 Fluid Flow through Porous Media
0 Mathematical and numerical Modeling
0 Polymer Flooding
0 In-Situ Foam Generation

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Chemical Enhanced Oil Recovery
Polymer Flooding
Fluid Flow through Porous Media
Thermal Recovery
Heat Transfer
Carbon Sequestration and Adsorption

Honors and Awards

AberDoc and President Scholarship

Aberystwyth University




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Journal article
Published: 03 August 2021 in Sensors
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The power system planning problem considering system loss function, voltage profile function, the cost function of FACTS (flexible alternating current transmission system) devices, and stability function are investigated in this paper. With the growth of electronic technologies, FACTS devices have improved stability and more reliable planning in reactive power (RP) planning. In addition, in modern power systems, renewable resources have an inevitable effect on power system planning. Therefore, wind resources make a complicated problem of planning due to conflicting functions and non-linear constraints. This confliction is the stochastic nature of the cost, loss, and voltage functions that cannot be summarized in function. A multi-objective hybrid algorithm is proposed to solve this problem by considering the linear and non-linear constraints that combine particle swarm optimization (PSO) and the virus colony search (VCS). VCS is a new optimization method based on viruses’ search function to destroy host cells and cause the penetration of the best virus into a cell for reproduction. In the proposed model, the PSO is used to enhance local and global search. In addition, the non-dominated sort of the Pareto criterion is used to sort the data. The optimization results on different scenarios reveal that the combined method of the proposed hybrid algorithm can improve the parameters such as convergence time, index of voltage stability, and absolute magnitude of voltage deviation, and this method can reduce the total transmission line losses. In addition, the presence of wind resources has a positive effect on the mentioned issue.

ACS Style

Rahmad Syah; Peyman Khorshidian Mianaei; Marischa Elveny; Naeim Ahmadian; Dadan Ramdan; Reza Habibifar; Afshin Davarpanah. A New Hybrid Algorithm for Multi-Objective Reactive Power Planning via FACTS Devices and Renewable Wind Resources. Sensors 2021, 21, 5246 .

AMA Style

Rahmad Syah, Peyman Khorshidian Mianaei, Marischa Elveny, Naeim Ahmadian, Dadan Ramdan, Reza Habibifar, Afshin Davarpanah. A New Hybrid Algorithm for Multi-Objective Reactive Power Planning via FACTS Devices and Renewable Wind Resources. Sensors. 2021; 21 (15):5246.

Chicago/Turabian Style

Rahmad Syah; Peyman Khorshidian Mianaei; Marischa Elveny; Naeim Ahmadian; Dadan Ramdan; Reza Habibifar; Afshin Davarpanah. 2021. "A New Hybrid Algorithm for Multi-Objective Reactive Power Planning via FACTS Devices and Renewable Wind Resources." Sensors 21, no. 15: 5246.

Journal article
Published: 02 August 2021 in Water
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Nowadays, water savings on industrial plants have become a significant concern for various plants and sections. It is vitally essential to propose applicable and efficient techniques to retreat produced water from onshore and offshore production units. This paper aimed to implement the PFF (Photo Fenton Flotation) method to optimize the water treatment procedure, as it is a two-stage separation technique. The measurements were recorded for the HF (hydraulic fracturing) and CEOR (chemically enhanced oil recovery) methods separately to compare the results appropriately. To assure the efficiency of this method, we first recorded the measurements for five sequential days. As a result, the total volume of 2372.5 MM m3/year of water can be saved in the HF process during the PFF treatment procedure, and only 20% of this required fresh water should be provided from other resources. On the other hand, the total volume of 7482.5 MM m3/year of water can be saved in CEOR processes during the PFF treatment procedure, and only 38% of this required fresh water should be provided from other resources. Therefore, the total water volume of 9855 MM m3 can be saved each year, indicating the efficiency of this method in supplying and saving the water volume during the production operations from oilfield units.

ACS Style

Rahmad Syah; Alireza Heidary; Hossein Rajabi; Marischa Elveny; Ali Shayesteh; Dadan Ramdan; Afshin Davarpanah. Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs. Water 2021, 13, 2131 .

AMA Style

Rahmad Syah, Alireza Heidary, Hossein Rajabi, Marischa Elveny, Ali Shayesteh, Dadan Ramdan, Afshin Davarpanah. Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs. Water. 2021; 13 (15):2131.

Chicago/Turabian Style

Rahmad Syah; Alireza Heidary; Hossein Rajabi; Marischa Elveny; Ali Shayesteh; Dadan Ramdan; Afshin Davarpanah. 2021. "Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs." Water 13, no. 15: 2131.

Article
Published: 30 July 2021 in International Journal of Chemical Reactor Engineering
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Greenhouse gas (GHG) pollution is considered one of the challenging concerns in industrial plants, and to emit the appropriate designation in nitrogen oxide reduction, it is required to implement proper numerical simulation procedures. In this study, ANSYS Fluent® software is used as dynamic software to solve heat and mass flow transfer numerically by considering non-structured networks for complex geometries. Dry nitrogen oxide burners have an additional thermocouple to provide an extra fuel pathway to combine with air. Then, standard K-ε is used in the numerical simulations to calculate thermal efficiency in combustion processes for turbulent flow regimes. It can cause the removal of 50% of nitrogen oxide into the atmosphere. Furthermore, by the increase of temperature, nitrogen oxide concentration has been increased in the system. After 1975 K, Fuel has been changed to dry fuel, and therefore nitrogen oxide concentration increased because the steam can provide a relatively non-combustible compound increase than fuel. On the other hand, regarding the water volume increase at inlet steam, nitrogen oxide volume percentage has been decreased dramatically, especially in the first periods of water volume increase. Consequently, when the steam percentage is increased instead of water, nitrogen oxide reduction is increased. Moreover, our simulation results have a proper match with Gibbs energy equilibrium.

ACS Style

Ir Sarjito; Marischa Elveny; Abduladheem Turki Jalil; Afshin Davarpanah; Majda Alfakeer; Aboud Ahmed Awadh Bahajjaj; Mohamed Ouladsmane. CFD-based simulation to reduce greenhouse gas emissions from industrial plants. International Journal of Chemical Reactor Engineering 2021, 1 .

AMA Style

Ir Sarjito, Marischa Elveny, Abduladheem Turki Jalil, Afshin Davarpanah, Majda Alfakeer, Aboud Ahmed Awadh Bahajjaj, Mohamed Ouladsmane. CFD-based simulation to reduce greenhouse gas emissions from industrial plants. International Journal of Chemical Reactor Engineering. 2021; ():1.

Chicago/Turabian Style

Ir Sarjito; Marischa Elveny; Abduladheem Turki Jalil; Afshin Davarpanah; Majda Alfakeer; Aboud Ahmed Awadh Bahajjaj; Mohamed Ouladsmane. 2021. "CFD-based simulation to reduce greenhouse gas emissions from industrial plants." International Journal of Chemical Reactor Engineering , no. : 1.

Original article
Published: 02 July 2021 in Energy Science & Engineering
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New advancements in unconventional oil reservoirs to enhance cumulative oil production are essential for petroleum industries to develop new oilfields. Carbon dioxide injection (CO2) is considered one of the most functional enhanced oil recovery (EOR) methods, especially in shale reservoirs, regarding their low permeability of pores and cracks. This paper aims to experimentally investigate the crucial factors such as shale particle size, pressure, and temperature on the CO2 adsorption that can be used as a useful guideline for developing unconventional hydrocarbon reservoirs. Thereby, pressure increase would be an essential parameter to increase CO2 storage capacity; however, temperature increase has a reverse pattern and has caused to decrease the CO2 storage capacity. The essence of the oil recovery factor from shale reservoirs is another crucial factor that depends on the pressure, temperature, and soaking time factors. CO2 injection would be a proper (EOR) method to increase the oil recovery factor for higher pressures and temperatures. Therefore, the applicability of CO2 injection in shale reservoirs could provide efficient results rather than other EOR techniques.

ACS Style

Hongyan Zhang; Majid Khayatnezhad; Afshin Davarpanah. Experimental investigation on the application of carbon dioxide adsorption for a shale reservoir. Energy Science & Engineering 2021, 1 .

AMA Style

Hongyan Zhang, Majid Khayatnezhad, Afshin Davarpanah. Experimental investigation on the application of carbon dioxide adsorption for a shale reservoir. Energy Science & Engineering. 2021; ():1.

Chicago/Turabian Style

Hongyan Zhang; Majid Khayatnezhad; Afshin Davarpanah. 2021. "Experimental investigation on the application of carbon dioxide adsorption for a shale reservoir." Energy Science & Engineering , no. : 1.

Systematic review
Published: 02 June 2021 in Sustainability
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In this comparative study, we investigated different influential factors of mobile-assisted language learning (MALL) for improving productive and receptive language learning skills. To do this, 100 scientific research papers were selected from the top and high-quality journals based on the implications of MALL in higher education language learning. Eight papers were selected according to the specific criteria to categorize the results based on language skills interpretation and technological concepts. Therefore, after thoroughly understanding proposed methodologies and comparing them properly, underlying assumptions about this phenomenon are elaborated, and holistic and sustainable solutions are provided to address this idea. The results of this analysis indicated that Mobile devices are being utilized extensively in developing countries, with vocabulary being the primary language learning area assisted by technology and yielding satisfactory results. According to the findings of this comparative study, LINE and WhatsApp would be of interest among university students to improve receptively (listening and reading) and productivity (writing and speaking), respectively. Moreover, the technology acceptance model (TAM) would be a prominent option for teachers to adapt their current and future educational programs instead of only in-person teaching to improve students’ learning quality.

ACS Style

Mohsen Mortazavi; Mahyuddin Nasution; Foad Abdolahzadeh; Mojtaba Behroozi; Afshin Davarpanah. Sustainable Learning Environment by Mobile-Assisted Language Learning Methods on the Improvement of Productive and Receptive Foreign Language Skills: A Comparative Study for Asian Universities. Sustainability 2021, 13, 6328 .

AMA Style

Mohsen Mortazavi, Mahyuddin Nasution, Foad Abdolahzadeh, Mojtaba Behroozi, Afshin Davarpanah. Sustainable Learning Environment by Mobile-Assisted Language Learning Methods on the Improvement of Productive and Receptive Foreign Language Skills: A Comparative Study for Asian Universities. Sustainability. 2021; 13 (11):6328.

Chicago/Turabian Style

Mohsen Mortazavi; Mahyuddin Nasution; Foad Abdolahzadeh; Mojtaba Behroozi; Afshin Davarpanah. 2021. "Sustainable Learning Environment by Mobile-Assisted Language Learning Methods on the Improvement of Productive and Receptive Foreign Language Skills: A Comparative Study for Asian Universities." Sustainability 13, no. 11: 6328.

Editorial
Published: 12 May 2021 in Processes
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Intricate fluid flow and transport phenomena in porous media are ubiquitous in natural processes and engineering systems

ACS Style

Abdolreza Kharaghani; Afshin Davarpanah. Special Issue “Fluid Dynamics, Multi-Phase Flow, and Thermal Recovery Methods”. Processes 2021, 9, 842 .

AMA Style

Abdolreza Kharaghani, Afshin Davarpanah. Special Issue “Fluid Dynamics, Multi-Phase Flow, and Thermal Recovery Methods”. Processes. 2021; 9 (5):842.

Chicago/Turabian Style

Abdolreza Kharaghani; Afshin Davarpanah. 2021. "Special Issue “Fluid Dynamics, Multi-Phase Flow, and Thermal Recovery Methods”." Processes 9, no. 5: 842.

Journal article
Published: 27 April 2021 in Polymers
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Nowadays, the addition of nanoparticles to polymer solutions would be of interest; however, the feasible property of nanoparticles and their impact on oil recovery has not been investigated in more detail. This study investigates the rheology and capillary forces (interfacial tension and contact angle) of nanoparticles in the polymer performances during oil recovery processes. Thereby, a sequential injection of water, polymer, and nanoparticles; Nanosilica (SiO2) and nano-aluminium oxide (Al2O3) was performed to measure the oil recovery factor. Retention decrease, capillary forces reduction, and polymer viscoelastic behavior increase have caused improved oil recovery due to the feasible mobility ratio of polymer–nanoparticle in fluid loss. The oil recovery factor for polymer flooding, polymer–Al2O3, and polymer–SiO2 is 58%, 63%, and 67%, respectively. Thereby, polymer–SiO2 flooding would provide better oil recovery than other scenarios that reduce the capillary force due to the structural disjoining pressure. According to the relative permeability curves, residual oil saturation (Sor) and water relative permeability (Krw) are 29% and 0.3%, respectively, for polymer solution; however, for the polymer–nanoparticle solution, Sor and Krw are 12% and 0.005%, respectively. Polymer treatment caused a dramatic decrease, rather than the water treatment effect on the contact angle. The minimum contact angle for water and polymer treatment are about 21 and 29, respectively. The contact angle decrease for polymer treatment in the presence of nanoparticles related to the surface hydrophilicity increase. Therefore, after 2000 mg L−1 of SiO2 concentration, there are no significant changes in contact angle.

ACS Style

Yanqiu Hu; Zeyuan Zhao; Huijie Dong; Maria Vladimirovna Mikhailova; Afshin Davarpanah. Hybrid Application of Nanoparticles and Polymer in Enhanced Oil Recovery Processes. Polymers 2021, 13, 1414 .

AMA Style

Yanqiu Hu, Zeyuan Zhao, Huijie Dong, Maria Vladimirovna Mikhailova, Afshin Davarpanah. Hybrid Application of Nanoparticles and Polymer in Enhanced Oil Recovery Processes. Polymers. 2021; 13 (9):1414.

Chicago/Turabian Style

Yanqiu Hu; Zeyuan Zhao; Huijie Dong; Maria Vladimirovna Mikhailova; Afshin Davarpanah. 2021. "Hybrid Application of Nanoparticles and Polymer in Enhanced Oil Recovery Processes." Polymers 13, no. 9: 1414.

Journal article
Published: 29 March 2021 in Sustainability
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In arid and semi-arid lands like Iran water is scarce, and not all the wastewater can be treated. Hence, groundwater remains the primary and the principal source of water supply for human consumption. Therefore, this study attempted to spatially assess the groundwater potential in an aquifer in a semi-arid region of Iran using geographic information systems (GIS)-based statistical modeling. To this end, 75 agricultural wells across the Marvdasht Plain were sampled, and the water samples’ electrical conductivity (EC) was measured. To model the groundwater quality, multiple linear regression (MLR) and principal component regression (PCR) coupled with elven environmental parameters (soil-topographical parameters) were employed. The results showed that that soil EC (SEC) with Beta = 0.78 was selected as the most influential factor affecting groundwater EC (GEC). CaCO3 of soil samples and length-steepness (LS factor) were the second and third effective parameters. SEC with r = 0.89 and CaCO3 with r = 0.79 and LS factor with r = 0.69 were also characterized for PC1. According to performance criteria, the MLR model with R2 = 0.94, root mean square error (RMSE) = 450 µScm−1 and mean error (ME) = 125 µScm−1 provided better results in predicting the GEC. The GEC map indicated that 16% of the Marvdasht groundwater was not suitable for agriculture. It was concluded that GIS, combined with statistical methods, could predict groundwater quality in the semi-arid regions.

ACS Style

Aliasghar Azma; Esmaeil Narreie; Abouzar Shojaaddini; Nima Kianfar; Ramin Kiyanfar; Seyed Seyed Alizadeh; Afshin Davarpanah. Statistical Modeling for Spatial Groundwater Potential Map Based on GIS Technique. Sustainability 2021, 13, 3788 .

AMA Style

Aliasghar Azma, Esmaeil Narreie, Abouzar Shojaaddini, Nima Kianfar, Ramin Kiyanfar, Seyed Seyed Alizadeh, Afshin Davarpanah. Statistical Modeling for Spatial Groundwater Potential Map Based on GIS Technique. Sustainability. 2021; 13 (7):3788.

Chicago/Turabian Style

Aliasghar Azma; Esmaeil Narreie; Abouzar Shojaaddini; Nima Kianfar; Ramin Kiyanfar; Seyed Seyed Alizadeh; Afshin Davarpanah. 2021. "Statistical Modeling for Spatial Groundwater Potential Map Based on GIS Technique." Sustainability 13, no. 7: 3788.

Research article
Published: 11 March 2021 in Petroleum Science and Technology
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Surfactant adsorption is one of the crucial issues in surfactant flooding to enhance the oil recovery factor. In this paper, we investigated the profound impact of two different surfactants on the carbonate rocks adsorption density in different temperatures. According to the results of this experiment, carbonate rocks adsorption density increased with the increase of surfactant concentrations. Higher surfactants’ concentration, adsorption density had reached a plateau after 7 hours. Furthermore, temperature increase has caused to reduce the adsorption density for all surfactant concentration. The maximum adsorption density is about 50 mg/g at 20 °C. Besides, polyacrylamide addition would decrease the adsorption density.

ACS Style

Ke Jiao; Qiao Feng; Afshin Davarpanah. Effect of anionic and non-anionic surfactants on the adsorption density. Petroleum Science and Technology 2021, 39, 362 -372.

AMA Style

Ke Jiao, Qiao Feng, Afshin Davarpanah. Effect of anionic and non-anionic surfactants on the adsorption density. Petroleum Science and Technology. 2021; 39 (9-10):362-372.

Chicago/Turabian Style

Ke Jiao; Qiao Feng; Afshin Davarpanah. 2021. "Effect of anionic and non-anionic surfactants on the adsorption density." Petroleum Science and Technology 39, no. 9-10: 362-372.

Journal article
Published: 03 March 2021 in Petroleum Research
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Sand production is considered as one of the significant production issues that significantly reduce wellbore productivity. The process of sand or solids production in production operations is one of the crucial operational inefficiencies that can lead to wells collapsing. Besides, the drilling mud might erupt through the formation. Therefore, it is essential to properly determine what types of solids or sand are produced to correctly predict efficient sand control mechanisms. This paper aimed to compare different sand production control mechanisms and how to control or minimize sand production. Moreover, we consider injection pressure and sand moisture on the sand production rate. According to this study’s findings, pressure injection and moisture increase had caused sand production increase, which should be considered in operational performances. Furthermore, chemical injection such as resin and hydrogel injection usually has efficient sand production control methods. An expandable sand screen is an expandable three-layer component that is driven into the well and expanded.

ACS Style

Arman Salahi; Ali Naghi Dehghan; Seyed Jamal Sheikhzakariaee; Afshin Davarpanah. Sand production control mechanisms during oil well production and construction. Petroleum Research 2021, 1 .

AMA Style

Arman Salahi, Ali Naghi Dehghan, Seyed Jamal Sheikhzakariaee, Afshin Davarpanah. Sand production control mechanisms during oil well production and construction. Petroleum Research. 2021; ():1.

Chicago/Turabian Style

Arman Salahi; Ali Naghi Dehghan; Seyed Jamal Sheikhzakariaee; Afshin Davarpanah. 2021. "Sand production control mechanisms during oil well production and construction." Petroleum Research , no. : 1.

Research article
Published: 18 February 2021 in Mathematical Problems in Engineering
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Chemical recovery techniques have always been considered as one of the efficient secondary and tertiary recovery methods to enhance the oil recovery factor. Regarding the diversity of reservoir heterogeneity and rock properties for each field, various chemical agents were taken into consideration to provide a feasible process that has the best agreement with the reservoir characterization. The objective of this paper is to investigate the considerable influence of a set of chemical agents and temperature impact on the surfactant adsorption density of carbonate rocks. According to the results of this experiment, higher temperatures provide lower surfactant adsorption density. The lowest adsorption carbonate rocks’ adsorption density had occurred at 80°C. Furthermore, it was witnessed that hydrolyzed polyacrylamide addition to the surfactant would cause a dramatic decrease in the adsorption density in comparison with the surfactant or polymer individually.

ACS Style

Hamid Esfandyari; Abdorrahman Moghani; Feridun Esmaeilzadeh; Afshin Davarpanah. A Laboratory Approach to Measure Carbonate Rocks’ Adsorption Density by Surfactant and Polymer. Mathematical Problems in Engineering 2021, 2021, 1 -7.

AMA Style

Hamid Esfandyari, Abdorrahman Moghani, Feridun Esmaeilzadeh, Afshin Davarpanah. A Laboratory Approach to Measure Carbonate Rocks’ Adsorption Density by Surfactant and Polymer. Mathematical Problems in Engineering. 2021; 2021 ():1-7.

Chicago/Turabian Style

Hamid Esfandyari; Abdorrahman Moghani; Feridun Esmaeilzadeh; Afshin Davarpanah. 2021. "A Laboratory Approach to Measure Carbonate Rocks’ Adsorption Density by Surfactant and Polymer." Mathematical Problems in Engineering 2021, no. : 1-7.

Journal article
Published: 12 February 2021 in Processes
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Numerous studies have been performed on the generation of several silicon-based engineering materials that often have used chemical materials that have high risks for health and the safety of the environment. Generally, in the synthesis of Nano-silica, tetramethoxysilane, tetraethoxysilane, and tetraethyl orthosilicate (TEOS) are used as precursor materials; however, these materials are toxic and expensive for the production of Nano-silica. This paper presents an environmentally friendly short method (EFSM) with high efficiency for the synthesis of amorphous silica oxide Nanoparticles by using agricultural waste called rice husks (RHs). Use of the EFSM method as an alternative to the chemical methods would have the advantages of fast and simple operation, controllability, great pureness of the Nanoparticles, and low manufacturing cost. A Nanoparticles (NPs) evaluation was conducted with energy-dispersive spectroscopy (EDS), field emission scanning electron microscope (FESEM) and X-ray fluorescence (XRF). By applying the EFSM method, non-toxic amorphous silica nanoparticles with a purity of 94.5% and particle size less than 100 nm was synthesized without using any chemical material.

ACS Style

Vahid Zarei; Mojtaba Mirzaasadi; Afshin Davarpanah; Alireza Nasiri; Majid Valizadeh; Mohammad Hosseini. Environmental Method for Synthesizing Amorphous Silica Oxide Nanoparticles from a Natural Material. Processes 2021, 9, 334 .

AMA Style

Vahid Zarei, Mojtaba Mirzaasadi, Afshin Davarpanah, Alireza Nasiri, Majid Valizadeh, Mohammad Hosseini. Environmental Method for Synthesizing Amorphous Silica Oxide Nanoparticles from a Natural Material. Processes. 2021; 9 (2):334.

Chicago/Turabian Style

Vahid Zarei; Mojtaba Mirzaasadi; Afshin Davarpanah; Alireza Nasiri; Majid Valizadeh; Mohammad Hosseini. 2021. "Environmental Method for Synthesizing Amorphous Silica Oxide Nanoparticles from a Natural Material." Processes 9, no. 2: 334.

Journal article
Published: 20 January 2021 in Petroleum Research
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Conventional diverting techniques may not be useful, and the use of the advanced and well-documented diverting technique is needed to overcome the complexity and heterogeneity of carbonate reservoirs. Nowadays, there have been a lot of materials and techniques utilized for acid diversion. This paper aimed to consider various utilization of fiber-assisted self as the diverting system in acidifying carbonate reservoirs. One of the main reasons for its ability to overcome uncertainty is that the fiber itself is an inherent property, allowing for an automatic diversion adjustment downhole. When a media with infinite permeability, such as a perforation tunnel or natural fracture, is filled and bridged with a material of finite permeability such as degradable fiber, this creates a temporary skin to injectivity in that zone. This is a powerful concept, as it is a way, despite uncertainty from a lack of logging data or uncertainty in the data itself, of dampening the reservoir’s natural permeability contrast. It does not rely on petrophysical certainty to design a successful treatment.

ACS Style

Reza Abdollahi; Hamid Esfandyari; Mahdi Nadri Pari; Afshin Davarpanah. Conventional diverting techniques and novel fibr-assisted self-diverting system in carbonate reservoir acidizing with successful case studies. Petroleum Research 2021, 1 .

AMA Style

Reza Abdollahi, Hamid Esfandyari, Mahdi Nadri Pari, Afshin Davarpanah. Conventional diverting techniques and novel fibr-assisted self-diverting system in carbonate reservoir acidizing with successful case studies. Petroleum Research. 2021; ():1.

Chicago/Turabian Style

Reza Abdollahi; Hamid Esfandyari; Mahdi Nadri Pari; Afshin Davarpanah. 2021. "Conventional diverting techniques and novel fibr-assisted self-diverting system in carbonate reservoir acidizing with successful case studies." Petroleum Research , no. : 1.

Chemical engineering
Published: 01 January 2021 in Cogent Engineering
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Recent advancement in enhanced oil recovery techniques has given petroleum industries the chance to find optimum solutions to recover remained oil from hydrocarbon reservoirs. This paper aims to experimentally investigate the profound impact of reservoir characteristics such as permeability and pressure drop and foams properties such as foam quality and foams resistance factor in enhanced oil recovery processes. Therefore, a hybrid recovery technique containing a thermal recovery method (carbon dioxide) and a chemical method (foam injection) with different brine concentrations was performed to enhance the oil recovery factor. Consequently, after brine injectivity, foam injection has provided the highest recovery factor among other scenarios in shale reservoirs. Permeability increase has caused to increase in the resistance factor as the fluid mobilization is increased in the porous media. Therefore, for 80% of foam quality, the resistance factor is about 7.5, while for 40%, foam quality is about 5 at the permeability of 10mD.

ACS Style

Huang Jing; Afshin Davarpanah. Implications of Chemical-Thermal enhanced oil recovery methods in shale reservoirs. Cogent Engineering 2021, 8, 1 .

AMA Style

Huang Jing, Afshin Davarpanah. Implications of Chemical-Thermal enhanced oil recovery methods in shale reservoirs. Cogent Engineering. 2021; 8 (1):1.

Chicago/Turabian Style

Huang Jing; Afshin Davarpanah. 2021. "Implications of Chemical-Thermal enhanced oil recovery methods in shale reservoirs." Cogent Engineering 8, no. 1: 1.

Journal article
Published: 30 December 2020 in Journal of Petroleum Science and Engineering
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Wettability alteration would play a significant role in the hydrocarbon displacement as it can improve oil recovery factor both in conventional and unconventional reservoirs. Therefore, accurate prediction of this parameter would be of importance in displacement sweep efficiencies. In this paper, we aimed to experimentally investigate wettability changes in the presence of a nonionic natural surfactant (Cedar) for different carbonate mineral samples. To do this, Imbibition and USBM tests were taken into consideration to predict capillary pressure and how it affects oil production rate. It is observed that the presence of Cedar had a profound impact on the wettability and capillary pressure for calcite and dolomite samples. Due to the different composition of rock minerals, Cedar has a good effect on both core sample (calcite and dolomite), whereas the oil recovery for dolomite cores is more than calcite cores. This change for calcite cores corresponding oil-wet to neutral-wet or slightly water-wet and for dolomite samples become to water-wet. In addition, the most Sor decreasing occurs in dolomite samples particularly in D1 (14%). Moreover, the oil recovery for reservoir samples is less than mineral samples.

ACS Style

Hamid Esfandyari; Atieh Haghighat Hoseini; Seyed Reza Shadizadeh; Afshin Davarpanah. Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals. Journal of Petroleum Science and Engineering 2020, 200, 108285 .

AMA Style

Hamid Esfandyari, Atieh Haghighat Hoseini, Seyed Reza Shadizadeh, Afshin Davarpanah. Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals. Journal of Petroleum Science and Engineering. 2020; 200 ():108285.

Chicago/Turabian Style

Hamid Esfandyari; Atieh Haghighat Hoseini; Seyed Reza Shadizadeh; Afshin Davarpanah. 2020. "Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals." Journal of Petroleum Science and Engineering 200, no. : 108285.

Journal article
Published: 06 December 2020 in Energies
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: Efficient solar and wind energy to electricity conversion technologies are the best alternatives to reduce the use of fossil fuels and to evolve towards a green and decarbonized world. As the conventional photovoltaic systems use only the 600–1100 nm wavelength range of the solar radiation spectrum for electricity production, hybrid systems taking advantage of the overall solar radiation spectrum are gaining increasing interest. Moreover, such hybrid systems can produce, in an integrated and combined way, electricity, heating, cooling, and syngas through thermochemical processes. They have thus the huge potential for use in residential applications. The present work proposes a novel combined and integrated system for residential applications including wind turbines and a solar dish collector for renewables energy harvesting, an organic Rankine cycle for power production, an absorption chiller for cold production, and a methanation plant for CH4 production from captured CO2. This study deals with the energy, exergy, economic, and exergoenvironmental analyses of the proposed hybrid combined system, to assess its performance, viability, and environmental impact when operating in Tehran. Additionally, it gives a clear picture of how the production pattern of each useful product depends on the patterns of the collection of available renewable energies. Results show that the rate of methane production of this hybrid system changes from 42 up to 140 Nm3/month, due to CO2 consumption from 44 to 144 Nm3/month during a year. Moreover, the energy and exergy efficiencies of this hybrid system vary from 24.7% and 23% to 9.1% and 8%, respectively. The simple payback period of this hybrid system is 15.6 and the payback period of the system is 21.4 years.

ACS Style

Saeed Esfandi; Simin Baloochzadeh; Mohammad Asayesh; Mehdi Ali Ehyaei; Abolfazl Ahmadi; Amir Arsalan Rabanian; Biplab Das; Vitor A. F. Costa; Afshin Davarpanah. Energy, Exergy, Economic, and Exergoenvironmental Analyses of a Novel Hybrid System to Produce Electricity, Cooling, and Syngas. Energies 2020, 13, 6453 .

AMA Style

Saeed Esfandi, Simin Baloochzadeh, Mohammad Asayesh, Mehdi Ali Ehyaei, Abolfazl Ahmadi, Amir Arsalan Rabanian, Biplab Das, Vitor A. F. Costa, Afshin Davarpanah. Energy, Exergy, Economic, and Exergoenvironmental Analyses of a Novel Hybrid System to Produce Electricity, Cooling, and Syngas. Energies. 2020; 13 (23):6453.

Chicago/Turabian Style

Saeed Esfandi; Simin Baloochzadeh; Mohammad Asayesh; Mehdi Ali Ehyaei; Abolfazl Ahmadi; Amir Arsalan Rabanian; Biplab Das; Vitor A. F. Costa; Afshin Davarpanah. 2020. "Energy, Exergy, Economic, and Exergoenvironmental Analyses of a Novel Hybrid System to Produce Electricity, Cooling, and Syngas." Energies 13, no. 23: 6453.

Journal article
Published: 12 October 2020 in Processes
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Due to the harmful effects and depletion of non-renewable energy resources, the major concerns are focused on using renewable energy resources. Among them, the geothermal energy has a high potential in volcano regions such as the Middle East. The optimization of an organic Rankine cycle with a geothermal heat source is investigated based on a genetic algorithm having two stages. In the first stage, the optimal variables are the depth of the well and the extraction flow rate of the geothermal fluid mass. The optimal value of the depth of the well, extraction mass flow rate, and the geothermal fluid temperature is found to be 2100 m, 15 kg/s, and 150 °C. In the second stage, the efficiency and output power of the power plant are optimized. To achieve maximum output power as well as cycle efficiency, the optimization variable is the maximum organic fluid pressure in the high-temperature heat exchanger. The optimum values of energy efficiency and cycle power production are equal to 0.433 MW and 14.1%, respectively.

ACS Style

Mehdi A. Ehyaei; Abolfazl Ahmadi; Marc A. Rosen; Afshin Davarpanah. Thermodynamic Optimization of a Geothermal Power Plant with a Genetic Algorithm in Two Stages. Processes 2020, 8, 1277 .

AMA Style

Mehdi A. Ehyaei, Abolfazl Ahmadi, Marc A. Rosen, Afshin Davarpanah. Thermodynamic Optimization of a Geothermal Power Plant with a Genetic Algorithm in Two Stages. Processes. 2020; 8 (10):1277.

Chicago/Turabian Style

Mehdi A. Ehyaei; Abolfazl Ahmadi; Marc A. Rosen; Afshin Davarpanah. 2020. "Thermodynamic Optimization of a Geothermal Power Plant with a Genetic Algorithm in Two Stages." Processes 8, no. 10: 1277.

Journal article
Published: 10 October 2020 in Sustainability
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The rapid pace of development and technology enhancements revolutionize the way people communicate and subsequently exert a considerable influence on a student’s involvement and motivation. Mobile phones are considered among the most important devices to have made a breakthrough in every aspect of human life. Students' persistence in using mobile phones during classroom hours has become a significant concern because of distractions, disruptions, cheating, and inappropriate use. The objective of this paper is to identify the reasons why students use mobile phones during lecture hours by quantitative computer-based analysis. The participants were 520 undergraduate students who completed a questionnaire that is significantly based on the comparison of three principal perceptions of age, gender, and grades. To investigate the reliability of the proposed factors, Cronbach’s alpha parameter was adequately utilized in this study to check the consistency adaptation of these factors and to provide questions on the questionnaire. To validate the measurement scales, qualitative content validity was taken into consideration. The analysis of the correlation matrix that is based on the six administered variables in this study has been conducted in the statistic correlation level of 0.01, which is ranged from 0.043 to 0.601. Although no statistically significant differences were found in the students' perception regarding their gender and age, the differences were significant regarding their grades as far as the addiction reason was concerned. Consequently, the overwhelming majority of the students tended to use mobile phones during the lecture hours for class-related purposes.

ACS Style

Mohsen Mortazavi; Fatma Tansu Hocanın; Afshin Davarpanah. Application of Quantitative Computer-Based Analysis for Student’s Learning Tendency on the Efficient Utilization of Mobile Phones during Lecture Hours. Sustainability 2020, 12, 8345 .

AMA Style

Mohsen Mortazavi, Fatma Tansu Hocanın, Afshin Davarpanah. Application of Quantitative Computer-Based Analysis for Student’s Learning Tendency on the Efficient Utilization of Mobile Phones during Lecture Hours. Sustainability. 2020; 12 (20):8345.

Chicago/Turabian Style

Mohsen Mortazavi; Fatma Tansu Hocanın; Afshin Davarpanah. 2020. "Application of Quantitative Computer-Based Analysis for Student’s Learning Tendency on the Efficient Utilization of Mobile Phones during Lecture Hours." Sustainability 12, no. 20: 8345.

Journal article
Published: 10 October 2020 in Journal of Molecular Liquids
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In recent decades, chemical surfactants have significantly been utilized in enhanced oil recovery (EOR) process and researchers still have a distinctive look to applications of these chemicals. In this study, Hexadecyl-tetra Methyl Ammonium Bromide (henceforth; HTMAB) and Hexadecyl-Amino-Benzene Sulfonic Acid (henceforth; HABSA) were used as surfactants to drive relative permeability curves in carbonate rocks. To this end, the contact angle between different concentrations of two surfactant solutions was measured in the bulk volume of kerosene using a VIT-6000 apparatus. Additionally, the unsteady state core flooding process (JBN method) in three steps (water injection, surfactant HTMAB injection and surfactant HABSA injection) was utilized to analyze the relative permeability measurements and finally oil recovery was evaluated at different conditions. According to the results of this study, HTMAB has the maximum oil recovery factor of 63.50% among the other scenarios assessed in this work. Hence, it is concluded that in carbonate rocks, HTMAB is more effective than HABSA as it has better efficiency to modify the wettability toward water-wet. Furthermore, for HTMAB flooding, it is indicated that relative permeability curves intersection depicts the water saturation of 0.67and according to the outcomes; the end-point of water is less than oil in relative permeability curve. Therefore, it can be concluded that HTMAB is more impressive than HABSA in wettability variation of these sorts of rocks.

ACS Style

Hamid Esfandyari; Abdolrahman Moghani Rahimi; Feridun Esmaeilzadeh; Afshin Davarpanah; Amir H. Mohammadi. Amphoteric and cationic surfactants for enhancing oil recovery from carbonate oil reservoirs. Journal of Molecular Liquids 2020, 322, 114518 .

AMA Style

Hamid Esfandyari, Abdolrahman Moghani Rahimi, Feridun Esmaeilzadeh, Afshin Davarpanah, Amir H. Mohammadi. Amphoteric and cationic surfactants for enhancing oil recovery from carbonate oil reservoirs. Journal of Molecular Liquids. 2020; 322 ():114518.

Chicago/Turabian Style

Hamid Esfandyari; Abdolrahman Moghani Rahimi; Feridun Esmaeilzadeh; Afshin Davarpanah; Amir H. Mohammadi. 2020. "Amphoteric and cationic surfactants for enhancing oil recovery from carbonate oil reservoirs." Journal of Molecular Liquids 322, no. : 114518.

Journal article
Published: 15 September 2020 in Renewable Energy
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Reduction of carbon dioxide (CO2) emissions will have a positive impact on the environment by preventing adverse effects of global warming. To achieve an eco-environment, the primary source of energy needs to shift from fossil fuels to clean renewable energy. Thus, increased utilization of renewable energy overtime reduces air pollution and contributes to securing sustainable energy supply to satisfy future energy needs. The main purpose of this study is to investigate several sustainable hybrid renewable systems for electricity production in Iran. In this regard, critical indicators that have the strongest impact on the environment and energy sustainability are presented in this study. After a comprehensive review of environmental issues, data was collected from the meteorological organization and a techno-economic assessment was performed using HOMER software. It was concluded that the hybrid configuration composed of photovoltaic (PV), wind turbine, diesel generator and battery produced the best outcome with an energy cost of 0.151$/kWh and 15.6% return on investment. In addition, the results showed that with a higher renewable fraction exceeding 72%, this hybrid system can reduce more than 2000 Kg of CO2 emission per household annually. Although excess electricity generation is a challenge in stand-alone systems, by using the fuel cell, an electrolyzer, and a hydrogen tank unit, the amount of energy loss was reduced to less than one-sixth. These results show that selecting useful indicators such as appropriate implementation of policies of new enabling technologies and investments on renewable energy resources, has three potential benefits namely: CO2 reduction, greater sustainable electricity generation and provides an economic justication for stakeholders to invest in the renewable energy sector.

ACS Style

A. Razmjoo; L. Gakenia Kaigutha; M.A. Vaziri Rad; M. Marzband; Afshin Davarpanah; M. Denai. A Technical analysis investigating energy sustainability utilizing reliable renewable energy sources to reduce CO2 emissions in a high potential area. Renewable Energy 2020, 164, 46 -57.

AMA Style

A. Razmjoo, L. Gakenia Kaigutha, M.A. Vaziri Rad, M. Marzband, Afshin Davarpanah, M. Denai. A Technical analysis investigating energy sustainability utilizing reliable renewable energy sources to reduce CO2 emissions in a high potential area. Renewable Energy. 2020; 164 ():46-57.

Chicago/Turabian Style

A. Razmjoo; L. Gakenia Kaigutha; M.A. Vaziri Rad; M. Marzband; Afshin Davarpanah; M. Denai. 2020. "A Technical analysis investigating energy sustainability utilizing reliable renewable energy sources to reduce CO2 emissions in a high potential area." Renewable Energy 164, no. : 46-57.