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Title: The nucleation kinetics of barium sulfate in NaCl solutions up to 6 m and 90 C

Abstract

The formation of barite crystals is both desirable for quantitative analysis of barium or sulfate concentrations and undesirable as scale deposits in wells and associated facilities during geothermal drilling, gas and oil production, and brine disposal. Induction periods for the nucleation of barium sulfate were experimentally determined as a function of supersaturation in NaCl solutions from 0 to 6 m at 25 C and in 1.0 m NaCl solutions at temperatures from 25 to 90 C. Employing the classical nucleation theory, the interfacial tension between barite and supersaturated solutions with NaCl was estimated to be about 93 mJ/m{sup 2} (less than 0.003 m NaCl) and 79 mJ/m{sup 2} (1 m NaCl) at 25 C. It decreases slightly with increasing temperature (to 71 mJ/m{sup 2} in 1 m NaCl solutions at 90 C). It was observed that the induction period decreases with increasing NaCl concentrations to 3 mm and then starts to increase slightly at a given temperature and saturation index. The electrolyte effect on nucleation was proportional to the enhanced solubility of barium sulfate in NaCl solutions. This phenomenon may result from decreased crystal-solution interfacial tensions caused by increased barite solubility in electrolyte solutions. The increase in induction period atmore » high NaCl concentrations may be due to the substitution of Na{sup +} ions into the lattice of BaSO{sub 4}.« less

Authors:
; ;  [1]
  1. Rice Univ., Houston, TX (United States). Dept. of Environmental Science and Engineering
Publication Date:
OSTI Identifier:
106234
Resource Type:
Journal Article
Journal Name:
Journal of Colloid and Interface Science
Additional Journal Information:
Journal Volume: 174; Journal Issue: 2; Other Information: PBD: 15 Sep 1995
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; 15 GEOTHERMAL ENERGY; BARIUM SULFATES; PRECIPITATION; OIL WELLS; SCALE CONTROL; NATURAL GAS WELLS; GEOTHERMAL WELLS; SODIUM CHLORIDES; SURFACE TENSION; INTERFACES; TEMPERATURE DEPENDENCE; DISPOSAL WELLS; DISSOLUTION; COPRECIPITATION; NATURAL RADIOACTIVITY; RADIOACTIVE MINERALS

Citation Formats

He, S, Oddo, J E, and Tomson, M B. The nucleation kinetics of barium sulfate in NaCl solutions up to 6 m and 90 C. United States: N. p., 1995. Web. doi:10.1006/jcis.1995.1397.
He, S, Oddo, J E, & Tomson, M B. The nucleation kinetics of barium sulfate in NaCl solutions up to 6 m and 90 C. United States. https://doi.org/10.1006/jcis.1995.1397
He, S, Oddo, J E, and Tomson, M B. Fri . "The nucleation kinetics of barium sulfate in NaCl solutions up to 6 m and 90 C". United States. https://doi.org/10.1006/jcis.1995.1397.
@article{osti_106234,
title = {The nucleation kinetics of barium sulfate in NaCl solutions up to 6 m and 90 C},
author = {He, S and Oddo, J E and Tomson, M B},
abstractNote = {The formation of barite crystals is both desirable for quantitative analysis of barium or sulfate concentrations and undesirable as scale deposits in wells and associated facilities during geothermal drilling, gas and oil production, and brine disposal. Induction periods for the nucleation of barium sulfate were experimentally determined as a function of supersaturation in NaCl solutions from 0 to 6 m at 25 C and in 1.0 m NaCl solutions at temperatures from 25 to 90 C. Employing the classical nucleation theory, the interfacial tension between barite and supersaturated solutions with NaCl was estimated to be about 93 mJ/m{sup 2} (less than 0.003 m NaCl) and 79 mJ/m{sup 2} (1 m NaCl) at 25 C. It decreases slightly with increasing temperature (to 71 mJ/m{sup 2} in 1 m NaCl solutions at 90 C). It was observed that the induction period decreases with increasing NaCl concentrations to 3 mm and then starts to increase slightly at a given temperature and saturation index. The electrolyte effect on nucleation was proportional to the enhanced solubility of barium sulfate in NaCl solutions. This phenomenon may result from decreased crystal-solution interfacial tensions caused by increased barite solubility in electrolyte solutions. The increase in induction period at high NaCl concentrations may be due to the substitution of Na{sup +} ions into the lattice of BaSO{sub 4}.},
doi = {10.1006/jcis.1995.1397},
url = {https://www.osti.gov/biblio/106234}, journal = {Journal of Colloid and Interface Science},
number = 2,
volume = 174,
place = {United States},
year = {1995},
month = {9}
}