Monodisperse Thermodynamic Model Based on Chemical + Flory–Hüggins Polymer Solution Theories for Predicting Asphaltene Precipitation

Asphaltene precipitation is traditionally modeled using the Flory–Huggins polymer solution theory. The existing thermodynamic models, generally, do not take into account the aggregation/association phenomena in the system. This work aims at providing a monodisperse thermodynamic model for estimating asphaltene precipitation by taking into account the aforementioned phenomena. The chemical theory of associated solutions with physical interactions along with the Flory–Huggins polymer solution theory is applied to develop this model. The results of this method are compared with some selected experimental data from the literature. It is shown that taking into account the aggregation/association phenomena in the system can lead to better predictions of the model. Moreover, it is shown that this method simplifies to the existing activity coefficient based models when ignoring the association.

[1]  Joel H. Hildebrand,et al.  SOLUBILITY. XII. REGULAR SOLUTIONS1 , 1929 .

[2]  A. Gil-Villegas,et al.  Asphaltene Precipitation in Crude Oils: Theory and Experiments , 2004 .

[3]  Y. Koga,et al.  Characterization of Athabasca asphaltenes by small-angle X-ray scattering , 1995 .

[4]  Abbas Firoozabadi,et al.  Molecular-thermodynamic framework for asphaltene-oil equilibria , 1998 .

[5]  Sunil Kokal,et al.  Measurement And Correlation Of Asphaltene Precipitation From Heavy Oils By Gas Injection , 1992 .

[6]  N. Smirnova,et al.  Thermodynamic Model of Petroleum Fluids Containing Polydisperse Asphaltene Aggregates , 1998 .

[7]  J. G. Briano,et al.  Molecular thermodynamics of continuous mixtures , 1983 .

[8]  Muhammad Sahimi,et al.  Asphalt flocculation and deposition : II. Formation and growth of fractal aggregates , 1996 .

[9]  M. Vafaie-Sefti,et al.  Application of association theory to the prediction of asphaltene deposition: Deposition due to natural depletion and miscible gas injection processes in petroleum reservoirs , 2006 .

[10]  Stanley I. Sandler,et al.  Phase equilibrium calculations for continuous and semicontinuous mixtures , 1987 .

[11]  E. Rogel,et al.  Asphaltenes: Structural Characterization, Self-Association, and Stability Behavior , 2000 .

[12]  Abbas Firoozabadi,et al.  Thermodynamics of Hydrocarbon Reservoirs , 1999 .

[13]  D. Peng,et al.  A New Two-Constant Equation of State , 1976 .

[14]  T. Guo,et al.  Experimental and modeling studies on the asphaltene precipitation in degassed and gas-injected reservoir oils , 1999 .

[15]  Abbas Firoozabadi,et al.  Cubic-Plus-Association Equation of State for Asphaltene Precipitation in Live Oils , 2010 .

[16]  Davood Rashtchian,et al.  Comprehensive Study of Asphaltene Precipitation due to Gas Injection: Experimental Investigation and Modeling , 2011 .

[17]  G. A. Mansoori,et al.  Organic deposition from reservoir fluids : a thermodynamic predictive technique , 1991 .

[18]  S. Ayatollahi,et al.  Prediction of Asphaltene Precipitation: Learning from Data at Different Conditions , 2010 .

[19]  H. S. Fogler,et al.  Effect of Asphaltene Dispersants on Aggregate Size Distribution and Growth , 2009 .

[20]  Huanquan Pan,et al.  Thermodynamic Micellization Model for Asphaltene Precipitation from Reservoir Crudes at High Pressures and Temperatures , 2000 .

[21]  Dimitrios P. Tassios,et al.  An Equation of State for Associating Fluids , 1996 .

[22]  Geraldo L. Rochocz,et al.  Critical point calculations for semi-continuous mixtures , 1997 .

[23]  R. Cimino,et al.  Thermodynamic Modelling for Prediction of Asphaltene Deposition in Live Oils , 1995 .

[24]  R. Heidemann,et al.  A thermodynamic mixed-solid asphaltene precipitation model , 1998 .

[25]  Mohammad Jamialahmadi,et al.  A New Thermodynamic Scale Equation for Modelling of Asphaltene Precipitation Form Live Oil , 2009 .

[26]  Abbas Firoozabadi,et al.  Molecular thermodynamics of asphaltene precipitation in reservoir fluids , 2000 .

[27]  E. Rogel,et al.  Aggregation of asphaltenes in organic solvents using surface tension measurements , 2000 .

[28]  Abbas Firoozabadi,et al.  Modeling Asphaltene Precipitation by n-Alkanes from Heavy Oils and Bitumens Using Cubic-Plus-Association Equation of State , 2010 .

[29]  P. Flory.  Principles of polymer chemistry , 1953 .

[30]  P. Flory.  Thermodynamics of Heterogeneous Polymers and Their Solutions , 1944 .

[31]  M. Sahimi,et al.  Asphalt flocculation and deposition: I. The onset of precipitation , 1996 .

[32]  M. Jamialahmadi,et al.  A New Scaling Equation for Modeling of Asphaltene Precipitation , 2003 .

[33]  L. Nghiem,et al.  Compositional Simulation of Asphaltene Deposition and Plugging , 1998 .

[34]  C. Soto-Figueroa,et al.  Methodology for Predicting the Phase Envelope of a Heavy Crude Oil and Its Asphaltene Deposition Onset , 2007 .

[35]  Huanquan Pan,et al.  Pressure and Composition Effect on Wax Precipitation: Experimental Data and Model Results , 1997 .

[36]  Mohsen Edalat,et al.  Developing of Scaling Equation with Function of Pressure to Determine Onset of Asphaltene Precipitation , 2008 .

[37]  D. Espinat,et al.  Macrostructure of asphaltene dispersions by small-angle X-ray scattering , 1988 .

[38]  A. Firoozabadi,et al.  Thermodynamic micellizatin model of asphaltene precipitation from petroleum fluids , 1996 .

[39]  J. Buckley,et al.  Crude oil and asphaltene characterization for prediction of wetting alteration , 2002 .

[40]  Riyaz Kharrat,et al.  Developing a New Scaling Equation for Modelling of Asphaltene Precipitation , 2009 .

[41]  V. Lazzeri,et al.  Asphaltene Cake Properties , 2008 .

[42]  Ali Abedini,et al.  Comparison of scaling equation with neural network model for prediction of asphaltene precipitation , 2010 .

[43]  G. Soave.  Equilibrium constants from a modified Redlich-Kwong equation of state , 1972 .

[44]  F. Dolezalek.  Zur Theorie der binären Gemische und konzentrierten Lösungen , 1908 .

[45]  W. Svrcek,et al.  A generalized regular solution model for asphaltene precipitation from n-alkane diluted heavy oils and bitumens , 2005 .

[46]  E. Sheu,et al.  Development of Solid Properties and Thermochemistry of Asphalt Binders in the 25−65 °C Temperature Range , 1996 .

[47]  G. Scatchard,et al.  THE ATTRACTIONS OF PROTEINS FOR SMALL MOLECULES AND IONS , 1949 .

[48]  G. A. Mansoori,et al.  Asphaltene Flocculation During Oil Production and Processing: A Thermodynamic Collodial Model , 1987 .

[49]  V. Lazzeri,et al.  Reversible description of asphaltene colloidal association and precipitation , 2003 .

[50]  G. Mansoori,et al.  Fractal nature of asphaltene aggregation , 1993 .

[51]  J. S. Rowlinson,et al.  Molecular Thermodynamics of Fluid-Phase Equilibria , 1969 .

[52]  H. Yarranton,et al.  Molar mass distribution and solubility modeling of asphaltenes , 1996 .

[53]  N. E. Burke,et al.  Measurement and Modeling of Asphaltene Precipitation (includes associated paper 23831 ) , 1990 .

[54]  A. Mohammadi,et al.  A monodisperse thermodynamic model for estimating asphaltene precipitation , 2007 .

[55]  R. Scott,et al.  The Thermodynamics of High‐Polymer Solutions: I. The Free Energy of Mixing of Solvents and Polymers of Heterogeneous Distribution , 1945 .

[56]  A. Mohammadi,et al.  The Scott-Magat Polymer Theory for Determining Onset of Precipitationof Dissolved Asphaltene in the Solvent + Precipitant Solution , 2008 .

[57]  Joel H. Hildebrand,et al.  The solubility of nonelectrolytes , 1964 .

[58]  H. Yarranton,et al.  An Asphaltene Association Model Analogous to Linear Polymerization , 2001 .

[59]  N. Smirnova,et al.  Description of asphaltene polydispersity and precipitation by means of thermodynamic model of self-assembly , 1999 .

[60]  William Y. Svrcek,et al.  Effect of Resins on Asphaltene Self‐Association and Solubility , 2008 .

[61]  L. X. Nghiem,et al.  Efficient Modelling of Asphaltene Precipitation , 1993 .

[62]  G. Hirasaki,et al.  Prediction of Asphaltene Instability under Gas Injection with the PC-SAFT Equation of State† , 2005 .

[63]  Huanquan Pan,et al.  Thermodynamic micellization model for asphaltene precipitation inhibition , 2000 .

[64]  A. Mohammadi,et al.  Estimating Onset of Precipitation of Dissolved Asphaltene in the Solution of Solvent + Precipitant Using Artificial Neural Network Technique , 2008 .

[65]  S. Godbole,et al.  EOS Modeling and Experimental Observations of Three-Hydrocarbon-Phase Equilibria , 1995 .

[66]  T. Guo,et al.  A study on the application of scaling equation for asphaltene precipitation , 2000 .

[67]  J. Speight.  The Chemistry and Technology of Petroleum , 1980 .

[68]  A. Teja,et al.  Prediction of dew points of semicontinuous natural gas and petroleum mixtures. 2. Nonideal solution calculations , 1987 .

[69]  G. Hirasaki,et al.  Modeling of Asphaltene Phase Behavior with the SAFT Equation of State , 2003 .

[70]  Ali Eslamimanesh,et al.  Estimation of solubility parameter by the modified ER equation of state , 2010 .

[71]  J. G. Meijer,et al.  Influence of Temperature and Pressure on Asphaltene Flocculation , 1984 .

[72]  Muhammad Sahimi,et al.  Asphalt Flocculation and Deposition. V. Phase Behavior in Miscible and Immiscible Injections , 1999 .

[73]  F. Chung,et al.  Modeling of asphaltene and wax precipitation , 1991 .

[74]  Arash Mirzabozorg,et al.  A Novel Method to Develop a New Scaling Equation for Modeling of Asphaltene Precipitation , 2009 .

[75]  Chorng H. Twu,et al.  An internally consistent correlation for predicting the critical properties and molecular weights of petroleum and coal-tar liquids , 1984 .

[76]  William Y. Svrcek,et al.  Regular Solution Model for Asphaltene Precipitation from Bitumens and Solvents , 2003 .

[77]  H. Yarranton,et al.  Applying the PR-EoS to Asphaltene Precipitation from n-Alkane Diluted Heavy Oils and Bitumens , 2006 .

[78]  Huanquan Pan,et al.  A Thermodynamic Micellization Model for Asphaltene Precipitation: Part I: Micellar Size and Growth , 1998 .

[79]  Gholamreza Zahedi,et al.  Prediction of asphaltene precipitation in crude oil , 2009 .

[80]  G. Ali Mansoori,et al.  Aggregation and Deposition of Heavy Organics in Petroleum Crudes , 1988 .

[81]  L. Nabzar,et al.  The Colloidal Approach. A Promising Route for Asphaltene Deposition Modelling , 2008 .

[82]  C. Browarzik,et al.  Modeling the Onset of Asphaltene Flocculation at High Pressure by an Association Model , 2005 .

[83]  Seyyed Alireza Tabatabaei-Nejad,et al.  Application of Chebyshev polynomials to predict phase behavior of fluids containing asphaltene and associating components using SAFT equation of state , 2010 .

[84]  J. E. Tackett,et al.  A unified approach to asphaltene precipitation: Laboratory measurement and modeling , 1995 .

[85]  M. Fasih,et al.  An Applied and Efficient Model for Asphaltene Precipitation In Production and Miscible Gas Injection Processes , 2010 .

[86]  Ning Liu,et al.  Measurement and corresponding states modeling of asphaltene precipitation in Jilin reservoir oils , 2004 .

[87]  James G. Speight,et al.  Thermodynamic models for asphaltene solubility and precipitation , 1999 .