Principles & Applications of Phase Behavior & Flow Assurance in Oil & Gas Systems


Dr. G.Ali Mansoori, PhD

Internet Sites:

Paraffin / Wax and Waxy Crude Oil (The Role of Temperature on Heavy Organics Deposition from Petroleum Fluids)


SOCAR Proceedings, No.3, Pages 038-046, 2020.
Magnetic treatment of petroleum and its relation with asphaltene aggregation onset (an atomistic investigation),
Journal of Petroleum Science and Technology, https://DOI: 10.1016/j.petrol.2019.01.059, 2019.
Microscopic details of asphaltenes aggregation onset during waterflooding,
Journal of Petroleum Science and Technology,, 2019.
Asphaltenes aggregation during petroleum reservoir air and nitrogen flooding,
Journal of Petroleum Science and Engineering Vol. 173, Pages 1121-1129, February 2019.
Asphaltene aggregation onset during high-salinity waterflooding of reservoirs (a molecular dynamic study),
Journal of Petroleum Science and Technology Vol. 36, Issue 21, Pages 1725-1732, Sept. 05, 2018.
The Role of Supercritical/Dense CO2 Gas in Altering Aqueous/Oil Interfacial Properties,
Energy & Fuels, 2018, 32 (2), pp 2095-2103; DOI: 10.1021/acs.energyfuels.7b03863.
Asphaltene Aggregation due to Waterflooding (A Molecular Dynamics Study),
Journal of Petroleum Science and Engineering Vol. 170, Pages 177-183, November 2018.
Molecular insights on the interfacial and transport properties of supercritical CO2/brine/crude oil ternary system,
Journal of Molecular Liquids Vol. 263, Pages 268-273, 1 August 2018.
Effect of CO2 on the Interfacial and Transport Properties of Water/Binary and Asphaltenic Oils,
Energy & Fuels, 2018, 32 (4), pp 5409-5417, Publication Date (Web): March 7, 2018.
A new insight into asphaltenes aggregation onset at molecular level in crude oil (an MD simulation study),
Journal of Petroleum Science and Engineering Vol. 162, Pages 244-250, March 2018.
Molecular dynamics studies of interaction between asphaltenes and solvents,
Journal of Petroleum Science and Engineering, Vol. 156, Pages 118-124, 2017.
Energy: Sources, Utilization, Legislation, Sustainability. World Sci Pub Co, Hackensack, NJ, 2016.

Tricritical phenomena in asphaltene/aromatic hydrocarbon systems,
Revista Mexicana de Fisica, Vol. 59, pp.584-593, 2013.
Effect of Fluid Viscosity on Asphaltene Deposition Rate During Turbulent Flow in Oil Wells,
American J. Chemical Eng'g, Vol.1, Issue 2, pp.45-49, 2013.
Diamondoids: Occurrence in fossil fuels, applications in petroleum exploration and fouling in petroleum production. A review paper,
International Journal of Oil, Gas and Coal Technology, Volume 5, Issue 4, Pages 316-367, 2012.

Diamondoid Molecules with Applications in Biomedicine, Materials Science, Nanotechnology & Petroleum Science. World Sci Pub Co, Hackensack, NJ, 2012.
Heavy-organic particle deposition from petroleum fluid flow in oil wells and pipelines,
Petroleum Science 7:502-508, (2010).
Remediation of Asphaltene and other Heavy Organic Deposits in Oil Wells and in Pipelines,
ELMI a Sarlar, J. Reservoir and Petroleum Engineering, SOCAR, pp.12-23, 2010.
Prefouling Behavior of Suspended Particles in Petroleum Fluid Flow,
Scientia Iranica, Vol. 17, No. 1, pp.77-85, 2010.
A unified perspective on the phase behaviour of petroleum fluids,
Int. J. Oil, Gas and Coal Technology, Vol. 2, No. 2, 2009 pp.141-167 (2009).
Petroleum Engineering-Downstream section of Encyclopedia of Life Support Systems, 33 pages, UNESCO, UN, Paris, France (2009).
The Effects of Asphaltene Deposition on Unconsolidated Porous Media Properties during Miscible Natural Gas Flooding ,
Petroleum Science and Technology, Vol. 26: pp. 231-243, 2008.
Characterization of Asphaltene Using Potential Energy and Nanocalculation,
Iranian Journal of Chemistry & Chemical Engineering Volume 27, No.2, Pages 47-58, 2008.
Theory of Interfacial Viscosity,
arXiv:0806.2289v1 [cond-mat.stat-mech], 2008.
Simulation of Natural Depletion and Miscible Gas Injection Effects on Asphaltene Stability in Petroleum Reservoir Fluids,
Petroleum Science and Technology, Vol.25: pp.1435-1446, 2007.
Polydispersity of heavy organics in crude oils and their role in oil well fouling,
J. Petrol. Sci. & Eng., Volume 58, Issues 3-4, Pages 375-390, 2007.
Reservoir organic geochemistry: Processes and applications,
J. Petrol. Sci. & Eng., Volume 58, Issues 3-4, Pages 341-343, 2007.
An introduction to natural gas hydrate/clathrate: The major organic carbon reserve of the Earth,
J. Petrol. Sci. & Eng., Vol. 56, No.s 1-3, pp.1-8, March 2007.
Study of asphaltene flocculation using particle counting method,
Proceed. Filtech 2005 (Int'l Conf. & Exhib. for Filteration & Separation Tech.), Vol. I, 506-511, Weisbaden, Ger., Oct. 11-13, 2005.
A perturbation correction of the Flory-Huggins polymer solution theory,
Condensed Matter Physics, 8, 2(42), 389-396, 2005.
Measurement and Corresponding States Modeling of Asphaltene Precipitation,
J. Petrol. Sci. & Eng., Vol. 41, No.s 1-3, pp.199-212 1-242, January 2004.
An analysis of methods for determination of onsets of asphaltene phase separations,
J. Petrol. Sci. & Eng., Vol. 42, No.s 2-4, April 2004, pp.145-156.
A new theory for polymer/solvent mixtures based on hard-sphere limit,
European Polymer Journal, Volume 39, No.6, pp.1141-1150, June 2003.
Petroleum Waxes, ,
Chapter 19 in "Fuels and Lubricants Handbook", ASTM Int'l, West Conshohocken, PA, 525-558, 2003.
New equation of state is accurate for VLE, PVT calculations of oil mixtures,
Oil & Gas Journal, Pages 50-52, December 9, 2002.
Cause and effect of deposition and fouling of heavy organics and other compounds in fuel and petrochemical processes,
KU Int'l J Sci. & Tech., Transaction B, 1-17, 2002.
Physicochemical Basis of Fouling Prediction and Prevention in the Process Industry,
Journal of the Chinese Institute of Chemical Engineers, Vol. 33, No.1, 25-31, 2002
Measurement of property relationships of nano-structure micelles and coacervates of asphaltene in a pure solvent,
Chem. Eng. Science, Vol.56, pp.6933-6939, 2001.
Principles of Deposition and Fouling of Heavy Organic Oils and Other Compounds,
Proceed.9th Int'l Conf. on Prop's & Phase Equil. for Product & Process Design (PPEPPD 2001), Kurashiki, Okayama, Japan, 9 Pages, May 20-25, 2001.
Predictive Theory and Model of Asphaltene flocculation and collapse from petroleum fluids,
J. Petrol. Sci. & Eng., Vol.32, pp.217-230, 2001.
Structure & Properties of Micelles and Micelle Coacervates of Asphaltene Macromolecule,
Nanotechnology Proceed. of 2001 AIChE Annual Meet., 2001.
Continuous Thermodynamics of Petroleum Fluids Fractions,
Chemical Engineering and Processing, Volume 40, Issue 5, Pages 431-435, 2001.
An equation of state for property prediction of alcohol-hydrocarbon and water-hydrocarbon systems,
Journal of Petroleum Science and Engineering Volume 32 Pages 103-114, 2001.
Identification and Measurement of Petroleum Precipitates,
J. Petrol. Sci. & Engineering, Vol. 26, Nos. 1-4, pp.49-56, 2000.
Thermodynamic Modeling and Experimental Studies of Dearomatization Process from a Complex Petroleum Fraction,
Separation Science and Technology, 35(5) 743-754, 2000.
Nanoscale Modeling of Organics Deposition from Petroleum Fluids,
G. A. Mansoori, Proceedings of the "2nd International Oil, Gas and Petrochemical Congress", 18 pages, May 2000.
Physicochemical Basis of Arterial Blockage / Fouling Prediction and Prevention,
in the Proceedings of "Heat Exchanger Seminar" Lecture 1, 18 pages, AIChE (Chicago Section) and ASME International (Chicago Section), Chicago, IL, February 9, 2000.
Advances in Prediction & Prevention of Heavy Organics Deposition from Petroleum Fluids,
Proceedings of Flow Assurance week, IBC Global Conf's, 27 Pages, 28 & 29 October 1999, Aberdeen, Scotland, GB
Statistical Mechanics and Kinetics Modeling of Organics Deposition from Petroleum Fluids,
Proceedings of the 8th Petroleum Society of CIM Conference, Paper No. PET-SOC-99-106, 15 Pages, Regina, Canada, October 18-21, 1999.
Characterization of Crude Oils of the Jujo-Tecominoacan Fields, Tabasco, Mexico,
Chapter 7, Giant oil and gas fields of the decade, 1990-1999, American Association of Petroleum Geologists.
Phase behavior prediction of petroleum fluids with minimum characterization data,
Journal of Petroleum Science and Engineering, Volume 22, Issue 1-3, Pages 67-93, 1999.
Heavy Organics Characterization of Crude Oils from Southeastern Mexican Oilfields (Aromatics, Asphaltenes, Resins, Saturates),
Proceed.1998 Int'l Petrol. Tech. Exhib. (EXITEP 96), CIPM, 25 Pages, Placio de Los Deportes, Mexico City, MX, 15-18 November 1998.
Prediction of the Phase Behavior of Asphaltene Micelle / Aromatic Hydrocarbon Systems,
Petrol. Sci. & Technology, Vol. 16, No's 3&4, pp.377-394 (1998).
Asphaltene micellization and its measurement,
S. Priyanto and G.A. Mansoori, Proceedings of the 3rd. International symposium on advanced and aerospace science and technology in Indonesia (ISASTI, 98), Jakarta August 31-September 3, 1998, Vol. 2, ISASTI-98-4.8.8, pp.843-860, 1998.
In situ remediation of heavy organic deposits using aromatic solvents,
SPE Paper # 38966, 13p, Proceedings the 68th Annual SPE Western Regional Meeting, Bakersfield, CA, 11-15 May, 1998.
Identification and Measurement of Heavy Organics in Petroleum Fluids,
Symp. Adv. Chem. of Asphaltene & Related Sub., 5th N. Amer. Chem. Cong., Cancun, MX, Nov 11-15, 1997.
Surface Tension Prediction of Liquid Mixtures,
AIChE Journal, Vol. 44, No. 10, pp.2324-2332, 1998.
Modeling of asphaltene and other heavy organics depositions,
J. Petroleum Science & Engineering, Vol. 17, pp.101-111, 1997.
Modeling the behavior of asphaltene micelle in petroleum fluids,
Paper # 12, Proceedings of the Second International Symposium on Colloid Chemistry in Oil Production (ISCOP '97), 6p, Rio de Janeiro, Brazil, August 31 to September 3, 1997.
Heavy organic deposition during oil production from a hot deep reservoir: A field experience,
SPE Paper # 38989, 9p, Proceedings of the 5th Latin American and Caribbean Petroleum Engineering Conference and Exhibition, Rio de Janeiro, Brazil, 30 August - 3 September 1997.
New analytic techniques for petroleum fluid characterization using molar refraction,
Proceedings of the 1997 SPE Meeting, held in Long Beach, CA 25-27 June, 1997, SPE Paper # 38312 (11 pages), Society of Petroleum Engineers, Richardson, TX.
Viscometric principles of onsets of colloidal asphaltene flocculation in paraffinic oils and asphaltene micellization in aromatics,
SPE Production & Facilities, Vol. 12(2), pp.116-122, May 1997.
Vapor pressure of hydrocarbons, generalized equation,
in "Encyclopedia of Chemical Processing and Design - 61" pp.362-365 Marcell-Dekker, Inc., New York, NY, 1997.
Prevention and remediation of heavy organics deposits in petroleum fluid transfer lines,
Proceedings of the International Conference on Fluid and Thermal Energy Conversion '97, ISSN 0854-9346, pp.K17-K39, 1997.
ASPHALTENE DEPOSITION AND ITS CONTROL (The Role of Asphaltene in Petroleum Flow Arterial Blockage),
Theory of Viscosity as a Criterion for Determination of Onset of Asphaltene Flocculation,
SPE paper # 28729, PEER-APPROVED MANUSCRIPT. This was later published with modifications as: "Viscometric Principles of Onsets of Colloidal Asphaltene Flocculation in Paraffinic Oils and Asphaltene Micellization in Aromatics" SPE Prod. & Fac. J. 12(2):116-122,1997.
Modeling and Control of Organic Deposits in Petroleum Production Systems ,
Proceed.1996 Int'l Petrol. Tech. Exhib. (EXITEP 96), CIPM, 25 Pages, Placio de Los Deportes, Mexico City, MX, 17-20 November 1996.
Asphaltene, resin, and wax deposition from petroleum fluids,
The Arabian Journal for Science and Engineering, Vol. 21, Number 4B, pp.707-723, December 1996.
Surface Tension Prediction of Pure Fluids,
AIChE Journal, Vol. 42, No. 5, pp.1425-1433, 1996.
Asphaltene and other heavy organic particle deposition during transfer and production operations,
SPE paper # 30672, Proceedings of the 1995 SPE Annual Technical Conference, 22-25 October 1995, Dallas, Texas, Pages 343-358, 1995.
Viscometric determination of the onset of asphaltene flocculation: A novel method,
J. SPE Prod. & Facilities, May 1995, pp.115-118, 1995.
Solid particle deposition during turbulent flow production operations,
Proceedings of the 1995 Production Operations Symposium, 2-4 April 1995, Oklahoma City, Oklahoma, SPE paper No. 29488, pp.439-446, 1995.
Thermodynamic behavior of hydrogen / natural gas mixtures,
Proceedings of the 74th Annual Convention of the Gas Processors Association, GPA, Tulsa, OK, pp.23-27, 1995.
Ch. 8 of ''Asphaltenes and Asphalts 1'' G.V. Chilingarian and T.F. Yen (Editors), Elsevier Sci., Pages 179-205, 1994.
Modeling and prevention of asphaltene and other heavy organic deposition in oil wells,
SPE paper No. 27070, Proceed. III LACPEC, Buenos Aires, Argentina, 27-29 April 1994
Sour Natural Gas and Liquid Equation of State,
Journal of Petroleum Science and Engineering l2(2): 127-136, 1994.
Modeling and characterization of high pressure phase behavior of heavy oil,
Proceedings of the International Conference on Fluid and Thermal Energy Conversion '94, Vol. I, pp.131-137, 1994.
A simple cubic equation of state for hydrocarbons and other compounds,
SPE paper No. 26667, Proceedings of the 68th Annual SPE Meeting, Pages 651-659, held in Houston, TX, 3-8 October 1993.
Generalized Equation Predicts Vapor Pressure of Hydrocarbons,
Oil & Gas Journal, pp.39-40, February 1, 1993.
Heavy organic deposition from petroleum fluids, G.A. Mansoori, Proceedings of 1993 Non-Renewable Energy Sources Congress (INRESC '93), pp.455-475, 1993.
Use of the Velocity of Sound in Predicting the PVT Relations,
Fluid Phase Equilibria J., Vol.90, pp.251-264, 1993.
Sour Natural Gas and Liquid Equation of State,
SPE Paper # 26906, Proceed. 1993 SPE Eastern Reg. Conf. & Exhib., Pittsburgh, PA. USA, 2-4 November 1993.
Simple equation of state accurately predicts hydrocarbon densities,
Oil & Gas Journal, pp.108-111, July 12, 1993.
Sour, hydrogen containing and liquefied natural gas equation of state,
Proceedings of Int'l Non-Renewable Energy Sources Congress (INRESC '93), pp.516-535, 1993.
A colloidal model for asphaltene flocculation from petroleum fluids,
Ir. J. Science & Technology, Vol. 16, No's 2&3, pp.249-267, 1992.
Heavy Organic Deposition and Plugging of Wells (Analysis of Mexico's Experience,
SPE Paper # 23696, Proceed. 2nd LAPEC, Pages 349-362, Caracas, Venezuela, March 8-11, 1992.
Organic Deposition from Reservoir Fluids,
SPE Reservoir Engineering Journal, Vol.6 (2), pp.185-192, May 1991.
Theory for Interfacial Tension of Partially Miscible Liquids,
PHYSICA, A, Vol. 179, Issue 2, pp. 219-231, March 1991.
Fluctuation Theory of Mixtures, Taylor & Francis Pub. Co., New York, 1990.
Statistical mechanics basis of Macleod's formula,
Journal Phys. Chem., 1990, 94 (21), pp 8362-8364; DOI: 10.1021/j100384a068.
The Role of Asphaltene in Wettability Reversal,
SPE Paper # 20700, Proceed. 65th SPE Ann. Tech. Conf., New Orleans, LA, Pages 799-809, Sep. 23 - 26, 1990.
C7+ Fraction Characterization, Taylor & Francis Pub. Co., New York, 1989.
Fast Crude-Oil Heavy-Component Characterization Using Combination of ASTM, HPLC, and GPC Methods,
Journal Petroleum Science & Eng. Vol. 2(1), pp.1-12, 1989.
Thermodynamic and Colloidal Models of Asphaltene flocculation,
Oil Field Chemistry", ACS Symposium Series No. 396, Chapter 24, pp. 443-458. American Chemical Society, Washington, D.C. 1989.
Equilibrium in Multiphase Polydisperse Fluids,
International Journal of Thermophysics, Volume 1O, No. 6, Pages 1181-1204, 1989.
Asphaltene Deposition and its Role in Petroleum Production and Processing,
Arabian J. Science & Engineering, Vol. 13, pp.17-34, 1988.
Proceed. 4th UNITAR / UNDP Heavy Crude Oil and Tar Sand International Conf., Vol. 2, Paper#225: Pages 471-483, 1988.
Asphaltene Deposition: An Economic Challenge in Heavy Petroleum Crude Utilization and Processing,
OPEC Review, pp.103-113, 1988.
Asphaltene Deposition: A survey of Field Experiences and Research Approaches,
J. Petrol. Sci. & Eng., Vol. 1, pp.229-239, 1988.
Aggregation and Deposition of Heavy Organics in Petroleum Crudes,
International J. Energy Sources, Vol. 10, pp.109-125, 1988.
The Role of Asphaltene Deposition in EOR Gas Flooding: A Predictive Technique,
SPE Paper#17376, Proceedings of the 1988 SPE/DOE Symposium on Enhanced Oil Recovery, Society of Petroleum Engineers, Richardson, TX, 1988.
Buried Gas Transmission Pipelines: Temperature Profile Prediction through the Corresponding States Principle
Energy Sources, Vol. 10, pp.247-252, 1988.
Minimum Miscibility Pressure Prediction With Equations of State,
SPE Reservoir Engineering Journal, Pages 559-564, May 1988.
Descriptive Accounts of Thermodynamic and Colloidal Models of Asphaltene Flocculation,
Proceedings of Symposium on Thermodynamic and Transport Properties of Fluids. Astrohall, Houston, TX, March 29 - April 2, 1987.
Statistical Mechanical Description of Supercritical Fluid Extraction and Retrograde Condensation,
Int'l J. Thermophysics 8(4): 449-471, 1987.
Asphaltene Flocculation During Oil Recovery and Processing: A Thermodynamic-Colloidal Model,
SPE Paper#16258, Proceedings of the 1987 SPE Symposium on Oil Field Chemistry, Society of Petroleum Engineers, Richardson, TX, 1987.
Chemical Engineering Communications Volume 54, Pages139-148, 1987.
Fluid Phase Equilibria Journal Volume 30, Pages 57-64, 1986.
Asphaltene Deposition in Oil Recovery: A Survey of Field Experiences and Field Approaches,
Proceedings of International Conference on Advanced Technologies (ICAT 86) DeKalb, IL, USA 1986.
Continuous Mixture Computational Algorithm of Reservoir Fluid Phase Behavior - Applicable for Compositional Reservoir Simulation,
SPE Paper#15953, Proceed. SPE Eastern Reg. Meet.281-288, Columbus, Ohio, USA, November 12-14, 1986.
A Continuous Mixture Computational Algorithm for Reservoir Fluids Phase Behavior,
SPE Paper # 15082, pp.391-398, Proceed. 56th SPE Calif. Reg. Meet. Oakland, CA, April 1986
Asphaltene Deposition and its Role in Enhanced Oil Recovery Miscible Gas Flooding,
Proceedings of the 3rd European Symposium on Improved Oil Recovery, Rome, Italy, April 1985.


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