Thermodynamic predictions of scale potential, pH, and gas solubility in glycol-containing systems

SPE Seventh International Symposium on Oilfield Scale 2005: Pushing the Boundaries of Scale Control, Proceedings

Volumn , Issue , 2005, Pages 165-177

  Kaasa, B ^a   Sandengen, K ^b   Ostvold T ^b  

^a STATOIL   (Norway)

^b NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

Author keywords

[No Author keywords available]

Indexed keywords

ACIDITY; FLOW OF FLUIDS; GAS HYDRATES; GLYCOLS; HYDROCARBONS; PH EFFECTS; SOLUBILITY; THERMODYNAMICS;

GAS SOLUBILITY; MONO ETHYLENE GLYCOLS (MEG); SCALE INHIBITORS; SCALE POTENTIAL;

SCALE (DEPOSITS);

EID: 27744513882     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2523/95075-ms     Document Type: Conference Paper

References (19)

1. Olsen, S., Lunde, O., Dugstad, A., "Stabilizing pH in Troll pipelines solves glycol-regeneration problems", Oil & Gas Journal, (1999), 97(26), 59-62.
2. Kaasa, B., Prediction of pH, Mineral precipitations and multiphase equilibria during oil recovery, Dr.Ing thesis, NTNU, (1998)
3. Soave, G. "Equilibrium constants from a modified Redlich-Kwong equation of state", Chem. Eng. Sci., (1972), 27, 1197-1203.
4. Pitzer, K. S, Brewer, L. Lewis, G.N., Randall M., Thermodynamics 2.ed., McGraw-Hill, (1961)
5. Kan, A.T., Fu, G., Tomson, M.B." ffect of Methanol and Ethylene Glycol on Sulfates and Halite Scale Formation" Ind. Eng. Chem. Res., (2003) 42, 2399-2408
6. Covington, A. K., Bates, R. G., Durst, R. A." Definition of pH scales, standard reference values, measurement of pH and related terminology", Pure Appl. Chem., (1985) 57, 531-542
7. Mussini, P. R., Marcolungo, I., Rondinini, S., Longhi, P."Acid-base equilibria and acidity scales in ethylene glycol/water solvent mixtures: recommended reference-value pH-metric standards and ionization constants for ophthalic acid at normal and subzero temperatures" Chimica et L'lndustria, (1991) 73, 262-8
8. Mussini, T., Mazza, F." Medium effects as key electrochemical variables for corrosion and electrochemistry studies in non-aqueous and mixed solvents", Electrochimica Acta., (1987) 32(6), 855-862
9. Mussini, T.,Covington, A. K., Longhi, P., Rondinini, S." Criteria for Standardization of pH measurements in Organic-Solvents and water+Organic solvent", Pure Appl. Chem., (1985) 57(6), 865-876
10. Bates, R. G., Determination of pH. Theory and practice, 2.ed., John Wiley & Sons
11. Bates, R. G., Paabo, M., Robinson, R. A." Interpretation of pH measurements in alcohol-water solvents", J. Phys. Chem., (1963), 67, 1833-38
12. Elsemongy, M. M., Kenawy, I. M." Thermodynamics of Hydrochloric acid in Ethylene Glycol + Water Mixtures from Electromotive Force Measurements", Z. Phys. Chem., (1982) 129(2), 185-96
13. Bagg, J."Computer calculation of liquid-junction potentials - I. Concentration profiles at junctions with concentrated potassium chloride", Electrochim. Acta, (1990), 35(2), 367
14. Marion Seiersten, Institute for Energy Technology, Private communications 2004
15. 2O system, to high temperature and concentration" Geochim. Cosmochim. Acta. (1988), 52, 821-837
16. Masoudi, R., Tohidi, B., Anderson, R., Burgass, R.W., Yang, J. "Experimental measurement and thermodynamic modelling of chlathrate hydrate equilibria and salt solubility in aqueous ethylene glycol and electrolyte solutions" Fluid Phase Equilibria, (2003), 219, 157-163
17. Kraus, K.A., Raridon, R.J. and Baldwin, W.H." Properties of organic-water mixtures. I. Activity coefficients of sodium chloride, potassium chloride, and barium nitrate in saturated water mixtures of glycol, glycerol, and their acetates" J.Am.Chem.Soc., (1964), 86(13), 2571-2576
18. Rasmussen, P. Chiavone-Fihlo, C.O." Solubilities of salts in mixed solvents", J.of Chemical and engineering data, (1993), 38(3)367-369
19. th ed. Am Chem Soc Washington D.C (1965)