A Zinc Nitrate–Calcium Nitrate–Water System: The Solubility of Solids and the Density of Liquids in a Wide Range of Temperatures

Belova, Ekaterina V.; Brusinski, Nikita A.; Mamontov, M. N.; Uspenskaya, I. A.

doi:10.1021/acs.jced.7b00036

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Calcium salts and zinc salts are widely used to prepare workover fluids owing to their high density and inexpensive spending. The isothermal equilibrium phase diagrams of ZnNO 3 –CaNO 3 –H 2 O at 251.85, 262.35, and 288.15 K were investigated . Moreover, the equilibrium phase diagrams of the NaCl–ZnCl 2 –H 2 O system at 260.35 and 250.15 K were also conducted by the isothermal method, wet slag method, and thermogravimetric analysis .…”

Section: Introductionmentioning

confidence: 99%

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K

Zhang

Zhou

2019

J. Chem. Eng. Data

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This paper describes the results of the solid–liquid equilibria phase diagram in the two ternary systems sodium chloride–zinc chloride–water and calcium chloride–zinc chloride–water at 323 K using the method of isothermal dissolution equilibrium. Integrated with the determined equilibrated liquid phase and humid residue composition, the phase diagrams of the two systems were generated. At the same time, the invariant points, the univariant solubility curves, and the solid crystalline phase regions are displayed and discussed. The results of the experiment testify that the types of two ternary systems are classified as complex owing to the formation of a double salt. The phase diagram of the ternary system NaCl–ZnCl2–H2O at 323 K is constituted of two eutectic points, three univariant solubility curves, and three solid crystalline phase regions corresponding to NaCl, ZnCl2, and 2NaCl·ZnCl2. The phase diagram of the ternary system CaCl2–ZnCl2–H2O at 323 K includes two eutectic points, three univariant solubility curves, and three solid crystalline phase regions corresponding to CaCl2·2H2O, CaCl2·ZnCl2·2H2O, and ZnCl2. The experimental densities of the equilibrium solution were measured using a density bottle method. Based on the Laliberte model, the theoretical density of each saturated solution was calculated. The results show that the model gives worse prediction for two ternary systems with stronger interactions between components.

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Section: Introductionmentioning

confidence: 99%

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K

Zhang

Zhou

2019

J. Chem. Eng. Data

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“…Solutions of inorganic salts are widely used in the oil and gas industry as heavy workover fluids, which are applied in the operation and drilling of wells under conditions of abnormally high reservoir pressure. − …”

Section: Introductionmentioning

confidence: 99%

“…6 Among heavy workover fluids of high density, compositions based on formate solutions (potassium or cesium) stand out due to their qualities. 7−9 However, despite the low eutectic temperature, relative environmental safety, and low corrosivity, such fluids cannot reach very high densities (1.6−2.0 g/cm 3 ) at low freezing temperatures. Therefore, they cannot be used as winter workover fluids in the case of abnormally high reservoir pressure.…”

Section: ■ Introductionmentioning

confidence: 99%

Phase Equilibria and Thermodynamic Properties in the Zinc Chloride–Zinc Methanesulfonate–Water System

2019

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Obtained isothermal sections of the ZnCl 2 −Zn(CH 3 SO 3 ) 2 −H 2 O phase diagram at −10.8 and 25 °C (262.35 and 298.15 K) showed the Zn(CH 3 SO 3 ) 2 •4H 2 O hydrate to be stable under 25 °C in compositions with high ZnCl 2 content. The change of the solubility of the Zn(CH 3 SO 3 ) 2 •4H 2 O is slower with temperature than that of Zn(CH 3 SO 3 ) 2 •12H 2 O both in binary and ternary mixtures. The Laliberte model parameters were obtained for Zn(CH 3 SO 3 ) 2 −H 2 O and were used to predict density in the ternary aqueous solutions. Density and water activity of the aqueous solutions containing both ZnCl 2 and Zn(CH 3 SO 3 ) 2 were measured at several temperatures. The measured values were compared with predicted densities; the deviation does not exceed 2% for all compositions.

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Development of a novel packer fluid for high-temperature and high-pressure oil and gas wells with using design of experiments and artificial intelligence

Mahdavi Kalatehno,

Khamehchi

2024

J Petrol Explor Prod Technol

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This study introduces a novel phosphate-based packer fluid, designed for use in high-temperature and high-pressure oil and gas wells. The research aims to evaluate the performance of this innovative fluid in comparison with traditional acetate and formate-based fluids. The study highlights the enhanced performance metrics of the phosphate-based fluid, which include a higher density of 114 pcf, moderated pH levels from 13.5 to 10, and a significantly reduced corrosion rate to below 4 mpy, achieved through the addition of diammonium phosphate and potassium vanadate. Moreover, the research presents two machine learning models (an artificial neural network (ANN) and genetic programming (GP)) developed to predict the penetration depth of the phosphate-based fluid. Both models demonstrate high accuracy, with R-square values of 0.9468 and 0.9140, respectively, with the ANN model exhibiting slightly superior performance. The findings of the study indicate that the phosphate-based fluid, free of solubilizers and enhanced with innovative corrosion inhibitors, provides optimal thermal stability, minimal formation damage, and shallow penetration depth, thus representing a significant advancement in well completion technologies. The fluid’s distinctive properties and the predictive models’ high accuracy highlight its suitability for challenging environments, marking a notable progression in well completion technologies.

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A Zinc Nitrate–Calcium Nitrate–Water System: The Solubility of Solids and the Density of Liquids in a Wide Range of Temperatures

Cited by 4 publications

References 24 publications

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K

Phase Equilibria and Thermodynamic Properties in the Zinc Chloride–Zinc Methanesulfonate–Water System

Development of a novel packer fluid for high-temperature and high-pressure oil and gas wells with using design of experiments and artificial intelligence

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A Zinc Nitrate–Calcium Nitrate–Water System: The Solubility of Solids and the Density of Liquids in a Wide Range of Temperatures

Cited by 4 publications

References 24 publications

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl2–H2O and CaCl2–ZnCl2–H2O at 323 K

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl2–H2O and CaCl2–ZnCl2–H2O at 323 K

Phase Equilibria and Thermodynamic Properties in the Zinc Chloride–Zinc Methanesulfonate–Water System

Development of a novel packer fluid for high-temperature and high-pressure oil and gas wells with using design of experiments and artificial intelligence

Contact Info

Product

Resources

About

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K

Solid–Liquid Phase Equilibria in the Ternary Systems NaCl–ZnCl₂–H₂O and CaCl₂–ZnCl₂–H₂O at 323 K