Solubility parameter of oils by several models and experimental oil compatibility data: implications for asphaltene stability

Santos, David C.; Filipakis, Sofia D.; Lima, E. R. A.; Paredes, Márcio L.L.

doi:10.1080/10916466.2019.1594288

Cited by 12 publications

(9 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… a) In previous studies it was shown that the maximum combined uncertainty for this method is ± 0.2 MPa 1/2 2.…”

Section: Resultsmentioning

confidence: 95%

“…It is well-known that some properties of petroleum and fuels can be correlated as a function of the solubility parameter value (d, Eq. (1)) [1][2][3][4]. The solubility parameter also has an important role in the selection of solvents and in pharmaceutical proposals [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, from some of these empirical methods, it is also possible to assess the temperature dependence of d. For instance, Wang and Buckley [10] and Correra et al [9] proposed methods relating d to refractive index (n) and specific gravity (SG), according to Eqs. (2) and (3), respectively.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

2020

View full text Add to dashboard Cite

The thermodynamic information relating cohesive energy and internal pressure is explored in order to calculate the solubility parameter for hydrocarbons, some of its mixtures, and crude oils taking into account the effect of temperature. Singlephase data of pure hydrocarbons and some of their binary and ternary mixtures, such as speed of sound, density, and heat capacity at constant pressure, are used to adjust the proposed models. Finally, the results are compared with an experimental method recently presented by us in a previous publication. This evaluation demonstrates that the proposed methods are robust for highly saturated oils. Moreover, a general expression including SARA (percentage by weight of saturates S, aromatics A, resins R, and asphaltenes As) composition is proposed to predict the solubility parameter of oils with high content of resins and asphaltenes.

show abstract

“… a) In previous studies it was shown that the maximum combined uncertainty for this method is ± 0.2 MPa 1/2 2.…”

Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

2020

View full text Add to dashboard Cite

show abstract

“…al. [8][9][10], to adjust their models when relating cohesive energy, enthalpy of vaporization, and internal pressure in the calculation of SP values of asphaltene and crude oils. Interfacial tension wettability, ratio of isobaric to isothermal compressibility factors, and the boiling points of nonpolar liquids are thermodynamic parameters can be calculated by determining the SP [11].…”

Section: Introductionmentioning

confidence: 99%

Adopting a Residual‐Energy‐Based Approach to Calculate the Solubility Parameters of n‐Alkanes

et al. 2022

View full text Add to dashboard Cite

Two different paths were followed to calculate the solubility parameters (SP) of 133 alkanes. The first approach calculates SP from the points of view of internal pressure and residual energy, whereby Soave‐Redlich‐Kwong and Peng‐Robinson equations of state (EOSs) are employed with and without the volume‐shift correction. In the second approach, the cohesive energy concept is used and the saturation pressure and saturated liquid molar volume are separately computed by different models and coupled to one another. The results indicated that Approach 1 predicts SP with an error of 2.24 %, which is in the same order as that of Approach 2 but slightly better. The performance of Approach 1 was assessed by estimating the SP values of 33 substances from various families and comparing the results to an EOS‐based study.

show abstract

“…Previous studies have demonstrated that viscosity behaves differently from other additive properties, such as molar mass, density, or solubility parameter [20,21]. However, there are also other mixing rules in literature, most of which were proposed to estimate the viscosity of the liquid mixtures using the viscosity of the components at a given pressure and temperature.…”

mentioning

confidence: 99%

Experimental and modeling studies of density and viscosity behavior of a live fluid due to CO₂injection at reservoir condition

Santos

Lamim

Costa

et al. 2021

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

Self Cite

View full text Add to dashboard Cite

In this study, highly accurate measurements of density and dynamic viscosities of a recombined live oil and its mixture with additional CO2 were performed. The experiments were carried out under pressure and temperature gradients found in Brazilian Pre-salt reservoirs, that is, in the pressure range from (27.6 to 68.9) MPa and at (333.15 and 353.15) K. The assumption of volume change on mixing is evaluated from the experimental results, and the influence of pressure and temperature on the volume change upon mixing is assessed. The densities of mixtures are calculated considering (i) the excess volume approach, and (ii) no volume change. The densities are better correlated using the excess volume approach with Average Absolute Deviations (AAD) of 0.03%. Thirteen mixing rules of viscosity are examined by comparing the predicted values with the experimental viscosity of the recombined live oil + CO2 mixture. The performance of some rules using compositional fractions (molar, volume and weight) is also evaluated. Thus, a total of 28 different ways to calculate the mixture viscosities were tested in this study. The worst result was obtained with Bingham’s method, leading to 148.6% AAD. The best result was obtained from Lederer’s method with 2% AAD and a maximum deviation of 5.8% using volume fractions and the fitting parameter α. In addition, deviations presented by the predictive methods of Chevron, Double log, and Kendall did not exceed 9% AAD, using weight fractions (Chevron and Double log) and molar fractions (Kendall and Monroe).

show abstract

Solubility parameter of oils by several models and experimental oil compatibility data: implications for asphaltene stability

Cited by 12 publications

References 31 publications

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

Adopting a Residual‐Energy‐Based Approach to Calculate the Solubility Parameters of n‐Alkanes

Experimental and modeling studies of density and viscosity behavior of a live fluid due to CO₂injection at reservoir condition

Contact Info

Product

Resources

About

Solubility parameter of oils by several models and experimental oil compatibility data: implications for asphaltene stability

Cited by 12 publications

References 31 publications

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

Adopting a Residual‐Energy‐Based Approach to Calculate the Solubility Parameters of n‐Alkanes

Experimental and modeling studies of density and viscosity behavior of a live fluid due to CO2injection at reservoir condition

Contact Info

Product

Resources

About

Experimental and modeling studies of density and viscosity behavior of a live fluid due to CO₂injection at reservoir condition