Mohammad Sedghi. Education. June E Canby St Apt 202 Laramie WY USA

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1 Mohammad Sedghi 1420 E Canby St Apt 202 Laramie WY USA June msedghi@uwyo.edu Education PhD in Petroleum Engineering, University of Wyoming, USA Dissertation: Measurement and Modeling of Asphaltene Aggregation and Phase Behavior in Petroleum Fluids Calculating Gibbs free energy of association between asphaltenes utilizing the Umbrella Sampling technique as implemented in Molecular Dynamics simulations Fitting association parameters of PC-SAFT EOS for asphaltenes to the MD simulation results Modication of PC-SAFT EOS to enable accurate modeling of the eect of non-ionic dispersants on asphaltene phase behavior Investigating the role of resins on asphaltene stabilization in solutions through series of impedance measurement experiments Related courses Applied Mathematical Methods Transport Phenomena Flow through Porous Media Reservoir Simulation Thermodynamics Statistical Mechanics Quantum Chemistry Molecular modeling GPA: 4.0/4.0 BSc in Petroleum Engineering, Sharif University of Technology, Iran Thesis: A New Universal Model for Predicting Asphaltene Precipitation in Crude Oil GPA: 17.10/20 1

2 Academic Experience Postdoc Research Associate, Piri research group at the University of Wyoming 2014 present 1. Investigating capillary pressure between oil and water in organic nanopores Molecular Dynamics (MD) simulations were performed using DL_POLY simulation package to determine capillary pressure between oil and water in organic nanopores with dierent cross-section A FORTRAN code was written to implement DPD thermostat in the DL_POLY simulation package Oil, water, and the pore walls were represented with the MARTINI coarse-grained model Interfacial tension (IFT) between oil and water and equilibrium and dynamic contact angles for oil/water/wall system were obtained from the simulations 2. Investigating capillary pressure of oil and water in a calcite nanopore: A calcite nanopore with a square cross-section was created utilizing Crystal Maker software an atomistic representation of oil was developed by assembling a mixture of 26 polar and nonpolar organic molecules with their concentrations estimated from SARA analysis and from matching the oil-water IFT values to their experimental counterparts Large-scale simulations were carried out employing GROMACS simulation package The capillary pressure obtained from the simulations were compared against the calculations of a thermodynamic method (MS-P method) and the dierence between them was investigated 3. Examining nanoconnement eects on capillary condensation of hydrocarbons in nanopores A FORTRAN code was developed to calculate local pressure tensor components inside the simulation box Structural forces were characterized for pure methane and pentane as well as their binary mixtures inside carbon nanoslits of varying sizes between 1 to 5 nm Capillary condensation of methane at dierent pore sizes were simulated using LAMMPS software to perform hybrid NVT and GCMC simulations Capillary pressure of methane was determined during capillary condensation at dierent pore sizes. The simulation results were compared against the modied Laplace equation calculations 4. Comparing the eciency of surfactant and microemulsion solutions in removing oil contaminants MD simulations were performed to investigate removal of an oil blob adsorbed on a calcite surface Underlying mechanism for the superior performance of the microemulsion over the surfactant solution in detaching the oil droplet from the calcite surface was documented 2

3 5. Assessing dierent polymer dispersants in providing asphaltene stability in super critical CO2 and normal alkane solvents A FORTRAN code was developed to calculate and track the average aggregation number of 200 asphaltene molecules during MD simulations Performance of various polymer dispersants in curbing the aggregation of asphaltenes with dierent molecular structure in sc-co2 and alkane solvents were evaluated Density distribution and SANS analysis were performed to quantify phase separation of asphaltenes and dispersants 6. Investigating the underlying mechanism responsible for the enhanced oil recoveries under low salinity brine injections Investigating adsorption of carboxylate acids and carboxylate ions on calcite surfaces in presence of water and brine solutions Brine solutions with dierent compositions were injected to observe their impacts on detaching the adsorbed oil phase from the calcite surfaces A hybrid of LJ and Buckingham force eld was employed to accommodate solubility of calcite surface during the simulations Teaching Assistant, University of Wyoming Interfacial Phenomenon: delivering a series of lectures on interfacial forces, statistical thermodynamics, and molecular modeling 2. Fluid through porous media: teaching and providing handouts on Darcy equation 3. Well testing & Well logging: correcting homework 4. Enhance oil Recovery: correcting homework and exams 5. Drilling uid laboratory: teaching and evaluating reports Computer Skills Programming Languages Fortran 90, Bash, Matlab, Python Modeling Simulations Molecular Dynamics: GROMACS, LAMMPS, DL_POLY Quantum Mechanics: GAUSSIAN, Gabedit Reservoir Simulation: CMG 3

4 Research Interest Multiphase ow of oil and brine in micro- and meso-pores Molecular modeling of nano-scaled material properties Interfacial phenomena at oil-water interfaces Thermodynamics and phase behavior of multicomponent systems Honors and Activities Referee/Reviewer: Journal of Physical Chemistry, Langmuir Journal Coarsera course: An Introduction to Interactive Programming in Python Recipient of Anadarko fellowship for excellence in energy scholarship 2012 Member of Tau Beta Pi Treasurer of the Persian Student Association at University of Wyoming Recipient of TOTAL Summer school program scholarship â Publications [1] Mohammad Sedghi and Lamia Goual. Role of resins on asphaltene stability. Energy & Fuels, 24(4): , [2] Lamia Goual, Mohammad Sedghi, Huang Zeng, Farshid Mostow, Richard McFarlane, and Oliver C Mullins. On the formation and properties of asphaltene nanoaggregates and clusters by dc-conductivity and centrifugation. Fuel, 90(7): , [3] Mohammad Sedghi, Lamia Goual, William Welch, and Jan Kubelka. Eect of asphaltene structure on association and aggregation using molecular dynamics. The Journal of Physical Chemistry B, 117(18): , [4] Mohammad Sedghi and Lamia Goual. Pc-saft modeling of asphaltene phase behavior in the presence of nonionic dispersants. Fluid Phase Equilibria, 369:8694, [5] Lamia Goual, Mohammad Sedghi, Xiaoxiao Wang, and Ziming Zhu. Asphaltene aggregation and impact of alkylphenols. Langmuir, 30(19): , [6] Lamia Goual, Mohammad Sedghi, Farshid Mostow, Richard McFarlane, Andrew E Pomerantz, Soheil Saraji, and Oliver C Mullins. Cluster of asphaltene nanoaggregates by dc conductivity and centrifugation. Energy & Fuels, 28(8): , [7] Lamia Goual and Mohammad Sedghi. Role of ion-pair interactions on asphaltene stabilization by alkylbenzenesulfonic acids. Journal of colloid and interface science, 440:2331,

5 [8] Mohammad Sedghi, Mohammad Piri, and Lamia Goual. Molecular dynamics of wetting layer formation and forced water invasion in angular nanopores with mixed wettability. The Journal of chemical physics, 141(19):194703, [9] Gina Javanbakht, Mohammad Sedghi, William Welch, and Lamia Goual. Molecular dynamics simulations of co2/water/quartz interfacial properties: Impact of co2 dissolution in water. 31(21): , Langmuir, [10] Mohammad Sedghi, Lamia Goual, et al. Molecular dynamics simulations of asphaltene dispersion by limonene and pvac polymer during co 2 ooding. In SPE International Conference and Exhibition on Formation Damage Control. Society of Petroleum Engineers, [11] Mohammad Sedghi, Mohammad Piri, and Lamia Goual. Atomistic molecular dynamics simulations of crude oil/brine displacement in calcite mesopores. Langmuir, 32(14): , [12] Evan Lowry, Mohammad Sedghi, and Lamia Goual. Molecular simulations of napl removal from mineral surfaces using microemulsions and surfactants. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 506:485494, [13] Evan Lowry, Mohammad Sedghi, and Lamia Goual. Novel dispersant for formation damage prevention in co2: A molecular dynamics study. Energy & Fuels, Presentations Sedghi, M.; Goual, L. Molecular Dynamics Simulations of Asphaltene Dispersion by Limonene and PVAc Polymer During CO2 Flooding, SPE International Conference and Exhibition on Formation Damage Control at Lafayette LA, February 24 â - 26, Javanbakht, G.; Sedghi, M.; Goual, L.; Welch, W. Molecular Dynamics Simulations of CO2/Water/Quartz Interfacial Properties: Impact of CO2 Dissolution in Water. 250th American Chemical Society National Meeting & Exposition, August 16 â - 20, Sedghi, M.; Piri, M.; Goual, L. A molecular dynamics study on wettability alteration of calcite nanopores by crude oilâ s polar components. EMI 2015 Conference at Stanford University June 1619, Sedghi, M.; Piri, M.; Goual, L. Fluid/uid displacements in nanopores: A molecular dynamics approach. Workshop: Experimentation, Mathematical Modeling & Numerical Simulation of Porous Media Flows, Laramie, USA Sedghi, M.; Goual, L. Electrokinetic Separation of Heteroatoms and Metals from Asphaltenes. The 11th International Conference on Petroleum Phase Behavior and Fouling, Jersey City, USA