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Integrated Mineral Analysis of sandstone and dolomite formations using different chelating agents during matrix acidizing

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Petroleum 2019年第1期5卷 67-76页

作者： Mian Umer Shafiq Hisham Khaled Ben Mahmud mohsen ghasemi Curtin University CDT 25098009 MiriSarawakMalaysia Curtin University Kent StreetBentleyPerth6102Australia

Mineral analysis plays a major role in the successful matrix acidizing as it shows the change in physiochemical changes in the formation due to the reaction with fluids *** of the reservoir can be altered by injecting mineral acids during matrix *** various complications are connected during the application of these acids such as environmental hazards,corrosion of pipes and tubings,precipitation of fluosilicates and fast spending of *** mitigate these problems,chelating agents have been applied as an alternative by different *** this study,three different chelating agents EDTA,GLDA and HEDTA were applied to stimulate sandstone and dolomite *** pH value of these chelates ranges from 1.7 to 3 and is measured before and after core flooding to observe physiochemical *** flooding experiments under 180F temperature were performed at a constant flow rate of 1 ml/min on core samples having dimensions(3 inch1.5 inch).Porosity,permeability,Inductively Coupled Plasma(ICP),and TESCAN Integrated Mineral Analysis(TIMA)were employed to measure changes in formation properties such as morphology,topology and *** reacted sample of acids was analyzed for sodium,potassium,calcium,aluminium,magnesium,and iron using the ICP technique to find the capability of these chelates to remove positive *** found to be effective in chelating iron,calcium and magnesium and it also removed some amount of aluminium ions from the sandstone *** and porosity analysis concluded that HEDTA is more efficient in creating new big pore *** analysis confirms that HEDTA is effective in dissolving quartz and other positive ions while dissolved a large amount of calcium and sodium from the sandstone as compared to other *** analysis also concluded that HEDTA is effective in increasing porosity of sandstone formation while GLDA is effective in dolomites.

关键词： sandstone matrix porosity

Geyser Inspired Algorithm:A New Geological-inspired Meta-heuristic for Real-parameter and Constrained Engineering Optimization

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Journal of Bionic Engineering 2024年第1期21卷 374-408页

作者： Mojtaba ghasemi mohsen Zare Amir Zahedi Mohammad-Amin Akbari Seyedali Mirjalili Laith Abualigah Department of Electronics and Electrical Engineering Shiraz University of TechnologyShirazIran Department of Electrical Engineering Faculty of EngineeringJahrom UniversityJahromFrasIran Department of Electrical and Computer Engineering Tarbiat Modares UniversityTehranIran Department of Electrical and Computer Engineering University ofCyprusNicosiaCyprus Centre for Artificial Intelligence Research and Optimisation Torrens University AustraliaBrisbaneQLD 4006Australia University Research and Innovation Center Obuda University1034 BudapestHungary Department of Electrical and Computer Engineering Lebanese American UniversityByblos 13-5053Lebanon Hourani Center for Applied Scientific Research Al-Ahliyya Amman UniversityAmman 19328Jordan MEU Research Unit Middle East UniversityAmman 11831Jordan Applied Science Research Center Applied Science Private UniversityAmman 11931Jordan

Over the past years,many efforts have been accomplished to achieve fast and accurate meta-heuristic algorithms to optimize a variety of real-world *** study presents a new optimization method based on an unusual geological phenomenon in nature,named Geyser inspired Algorithm(GEA).The mathematical modeling of this geological phenomenon is carried out to have a better understanding of the optimization *** efficiency and accuracy of GEA are verified using statistical examination and convergence rate comparison on numerous CEC 2005,CEC 2014,CEC 2017,and real-parameter benchmark ***,GEA has been applied to several real-parameter engineering optimization problems to evaluate its *** addition,to demonstrate the applicability and robustness of GEA,a comprehensive investigation is performed for a fair comparison with other standard optimization *** results demonstrate that GEA is noticeably prosperous in reaching the optimal solutions with a high convergence rate in comparison with other well-known nature-inspired algorithms,including ABC,BBO,PSO,and *** that the source code of the GEA is publicly available at https://***/projects/gea.

关键词： Nature-inspired algorithms Real-world and engineering optimization Mathematical modeling Geyser algorithm(GEA)

A Global Best-guided Firefly Algorithm for Engineering Problems

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Journal of Bionic Engineering 2023年第5期20卷 2359-2388页

作者： mohsen Zare Mojtaba ghasemi Amir Zahedi Keyvan Golalipour Soleiman Kadkhoda Mohammadi Seyedali Mirjalili Laith Abualigah Department of Electrical Engineering Faculty of EngineeringJahrom UniversityJahrom***FrasIran Department of Electronics and Electrical Engineering Shiraz University of TechnologyShiraz***Iran Department of Electrical and Computer Engineering Tarbiat Modares UniversityTehran***Iran Department of Computer Engineering Sari BranchIslamic Azad UniversitySari***Iran Department of Electrical Engineering Urmia BranchIslamic Azad UniversityUrmia571696896Iran Centre for Artificial Intelligence Research and Optimisation Torrens University AustraliaBrisbaneQLD4006Australia Yonsei Frontier Lab Yonsei UniversitySeoul03722South Korea Computer Science Department Prince Hussein Bin Abdullah Faculty for Information TechnologyAl Al-Bayt UniversityMafraq25113Jordan Hourani Center for Applied Scientific Research Al-Ahliyya Amman UniversityAmman19328Jordan Faculty of Information Technology Middle East UniversityAmman11831Jordan School of Computer Sciences Universiti Sains Malaysia11800George TownPulau PinangMalaysia University Research and Innovation Center Obuda University1034BudapestHungary School of Engineering and Technology Sunway University MalaysiaPetaling Jaya27500Malaysia Applied science research center Applied science private universityAmman11931Jordan

The Firefly Algorithm(FA)is a highly efficient population-based optimization technique developed by mimicking the flashing behavior of fireflies when *** article proposes a method based on Differential Evolution(DE)/current-to-best/1 for enhancing the FA's movement *** proposed modification increases the global search ability and the convergence rates while maintaining a balance between exploration and exploitation by deploying the global best ***,employing the best solution can lead to premature algorithm convergence,but this study handles this issue using a loop adjacent to the algorithm's main ***,the suggested algorithm’s sensitivity to the alpha parameter is reduced compared to the original *** GbFA surpasses both the original and five-version of enhanced FAs in finding the optimal solution to 30 CEC2014 real parameter benchmark problems with all selected alpha ***,the CEC 2017 benchmark functions and the eight engineering optimization challenges are also utilized to evaluate GbFA’s efficacy and robustness on real-world problems against several enhanced *** all cases,GbFA provides the optimal result compared to other *** that the source code of the GbFA algorithm is publicly available at https://***/projects/gbfa.

关键词： Firefly algorithm New movement vector Global best-guided firefly algorithm Global optimization Engineering design

Integrated Biostratigraphy, Depositional Setting and Geochemical Analyses for Petroleum Potential Evaluation of the Lower Cretaceous(Barremian – Albian) Strata of the Koppeh-Dagh Basin, Northeastern Iran

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1885-1899页

作者： Sharifi MOHAMMAD Foroughi FARIBA ghasemi-Nejad EBRAHIM Shekarifard ALI Yazdi-Moghadam mohsen Sarfi MEHDI Department of Geology Faculty of SciencesUniversity of TehranTehranIran School of Chemical Engineering College of EngineeringUniversity of TehranTehranIran Exploration Directorate of the National Iranian Oil Company TehranIran School of Earth Sciences Damghan UniversityDamghanIran

The lower Cretaceous rock units of the Koppeh-Dagh Basin of northeastern Iran were investigated here in terms of biostratigraphy,depositional setting and geochemical analyses to find out if they,alike other parts of the world,are rich in *** this purpose,a stratigraphic framework is established using calcareous nannofossil and palynological elements.A nannoplankton zonation based on which subzones of the zones CC7–CC8 of Sissingh(1977)and their equivalent NC6–NC8 of Roth(1978)was established indicating a Late Barremian–Albian *** assemblages led us to establish the local palynozone of Odontochitina operculata.A dominantly marginal basin to a transitional zone between shelf and basin under a dysoxic–anoxic condition with low to moderate sedimentation rates coincided with a gradual sea level rise was introduced as the environment of deposition for the strata via interpretation of the palynological parameters and quantitative *** obtained data from Rock-Eval pyrolysis in compilation with palynofacies analysis reveals that the studied succession contains mainly gas-prone type III *** Spore Coloration Index(SCI)alongside with the Rock-Eval pyrolysis results(low values of HI and TOC)proves that these rock units locally produced natural gas during the time under consideration.

关键词： Koppeh-Dagh Lower Cretaceous Biostratigraphy Palaeoenvironment Rock-Eval pyrolysis

A multiscale material model for heterogeneous liquid droplets in solid soft composites

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Frontiers of Structural and Civil Engineering 2021年第5期15卷 1292-1299页

作者： Hamid ghasemi Department of Mechanical Engineering Arak University of TechnologyArak 38181-41167Iran

Liquid droplets in solid soft composites have been attracting increasing attention in biological *** contrary with conventional composites,which are made of solid elastic inclusions,available material models for composites including liquid droplets are for highly idealized configurations and do not include all material real *** are also all deterministic and do not address the uncertainties arising from droplet radius,volume fraction,dispersion and *** research revisits the available models for liquid droplets in solid soft composites and presents a multiscale computational material model to determine their elastic moduli,considering nearly all relevant uncertainties and heterogeneities at different length *** effects of surface tension at droplets interface,their volume fraction,size,size polydispersity and agglomeration on elastic modulus,are *** micromechanical material models are incorporated into the presented computational *** results clearly indicate both softening and stiffening effects of liquid droplets and show that the model can precisely predict the effective properties of liquid droplets in solid soft composites.

关键词： liquid in solid soft composite computational modeling multiscale model heterogeneity

Assessing the seismic behavior of steel moment frames equipped by elliptical brace through incremental dynamic analysis(IDA)

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Earthquake Engineering and Engineering Vibration 2020年第2期19卷 435-449页

作者： ghasemi Jouneghani Abbas Haghollahi Department of Civil Engineering Shahid Rajaee Teacher Training UniversityTehranIran

Incremental dynamic analysis and nonlinear static pushover analysis are carried out on a performance-based design to determine the seismic demands and capacities of an elliptic braced moment resisting frame(ELBRF).The objective is to assess ductility,overstrength and response modification factors in a modern steel-braced structural system based on incremental dynamic *** integrated system is connected to a beam and column with an appropriate length while providing enough architectural space to allow for an opening without having the common problems associated with architectural spaces in braced *** different classes of buildings are considered on soil type *** dynamic analysis,nonlinear static pushover analysis and incremental nonlinear dynamic analysis related to 12 records from past earthquakes are carried out using OpenSees *** factors of ductility,overstrength and response modification are calculated for this *** values of 9.5 and 6.5 are found and suggested only for the response modification factor for ELBRF systems in allowable stress and ultimate limit state methods,*** fragility curves are plotted for the first time for this type of bracing,which contributes to the assessment of building seismic damage.

关键词： elliptic brace response modification factor overstrength factor ductility factor incremental dynamic analysis,fragility curve

One-dimensional structure made of periodic slabs of SiO2/InSb offering tunable wide band gap at terahertz frequency range

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Chinese Physics B 2019年第12期28卷 170-179页

作者： Sepehr Razi Fatemeh ghasemi Faculty of Electrical Engineering Urmia University of Technology(UUT)UrmiaIran Department of Energy Engineering and Physics Amirkabir University of Technology TechnologyPO Box 15875-4413TehranIran

Optical features of a semiconductor–dielectric photonic crystal are studied theoretically. Alternating layers of micrometer sized SiO2/In Sb slabs are considered as building blocks of the proposed ideal crystal. By inserting additional layers and disrupting the regularity, two more defective crystals are also proposed. Photonic band structure of the ideal crystal and its dependence on the structural parameters are explored at the first step. Transmittance of the defective crystals and its changes with the thicknesses of the layers are studied. After extracting the optimum values for the thicknesses of the unit cells of the crystals, the optical response of the proposed structures at different temperatures and incident angles are investigated. Changes of the defect layers’ induced mode(s) are discussed by taking into consideration of the temperature dependence of the In Sb layer permittivity. The results clearly reflect the high potential of the proposed crystals to be used at high temperature terahertz technology as a promising alternative to their electronic counterparts.

关键词： photonic band gap photonic crystal semiconductor layer defect mode

Using the Hg_xMg_(1-x)Te ternary compound as a room temperature photodetector: The electronic structure, charge transport, and response function of the energetic electromagnetic radiation

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Chinese Physics B 2018年第5期27卷 143-149页

作者： ghasemi Hasan Mokhtari Ali Department of Physics Faculty of SciencesShahrekord University

In the present work, firstly, a first-principles study of the structural, electronic, and electron transport properties of the HgxMg1-xTe（HMT） ternary compound is performed using the ABINIT package and the results are compared with Cd0.9Zn0.1 Te（CZT） as a current room-temperature photodetector. Next, the response functions of Hg0.6Mg0.4Te and Cd0.9Zn0.1Te under electromagnetic irradiation with 0.05 Me V, 0.2 MeV, 0.661 MeV and 1.33 MeV energies are simulated by using the MCNP code. According to these simulations, the Hg0.6Mg0.4Te ternary compound is suggested as a good semiconductor photodetector for use at room temperature.

关键词： band gap charge-carrier transport photodetector density functional theory

Border-search and jump reduction method for size optimization of spatial truss structures

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Frontiers of Structural and Civil Engineering 2019年第1期13卷 123-134页

作者： Babak DIZANGIAN Mohammad Reza ghasemi Department of Civil Engineering Velayat UniversityIranshahr ***Iran Department of Civil Engineering University of Sistan and BaluchestanZahedan ***Iran

This paper proposes a sensitivity-based border-search and jump reduction method for optimum design of spatial *** is considered as a two-phase optimization approach,where at the first phase,the first local optimum is found by few analyses,after the whole searching space is limited employing an efficient random strategy,and the second phase involves finding a sequence of local optimum points using the variables sensitivity with respect to corresponding values of constraints *** reach the global solution at phase two,a sequence of two sensitivity-based operators of border-search operator and jump operator are introduced until convergence is *** analysis is performed using numerical finite difference *** do structural analysis,a link between open source software of OpenSees and MATLAB was *** truss problems were attempted for optimization in order to show the fastness and efficiency of proposed *** were compared with those reported in the *** shows that the proposed method is competitive with the other optimization methods with a significant reduction in number of analyses carried.

关键词： optimum design sensitivity analysis reduction method spatial tresses OpenSees