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Synthesis and laboratory evaluation of iso‐tridecyloxypolyethylene glycol acrylate copolymers as potential viscosity reducers for heavy oil.

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Title: Synthesis and laboratory evaluation of iso‐tridecyloxypolyethylene glycol acrylate copolymers as potential viscosity reducers for heavy oil.
Authors: Zhang, Fusheng1 (AUTHOR), Lei, Qun2 (AUTHOR), Liu, Guoliang1 (AUTHOR), Liao, Gongqing3 (AUTHOR), Xu, Xiaofang3 (AUTHOR), Meng, Weidong3 (AUTHOR) wdmeng@dhu.edu.cn
Source: Energy Science & Engineering. Sep2020, Vol. 8 Issue 9, p3303-3313. 11p.
Subject Terms: *Heavy oil, *Acrylamide, *Viscosity, *Polymer solutions, *Molecular weights, *Ethylene glycol
Abstract: As driven by the increase in global fuel demand and decrease in worldwide reserves of conventional oil, it is important to develop new production technologies for heavy oil. In this work, copolymers PAAI7, PAAI10, and PAAI15 were synthesized and evaluated as potential viscosity reducers for heavy oil. iso‐Tridecyloxypolyethylene glycol acrylates (I13CxAA, x = 7, 10, 15), acrylic amide (AM), and 2‐acrylamido‐2‐methylpropane sulfonic acid (AMPS) were polymerized to give the copolymers PAAIx, respectively. Copolymers PAAIx were characterized by FTIR, 1H NMR spectroscopy, and TGA and showed good thermal stabilities as the decomposition temperature was above 350°C. Their viscosity‐average molecular weights were measured as in the range between 6.53 × 106 and 10.58 × 106 g/mol. The effects of temperature, shear rate, and salinity on the viscosity of polymer solutions were studied, and PAAIx had reasonable rheological properties. The solutions of PAAIx in formation water could emulsify heavy oil sample to form oil‐in‐water emulsion when mass ratio of oil:water was in the range of 6:4‐2:8, respectively. The rates of reduction in viscosity of emulsions compared with that of original oil sample were 53.5%‐97.5% at 50°C under shear rate of 20 s−1. The effects of oil:water ratio, emulsifying temperature, and shear rate on the viscosities of emulsions were extensively studied, and the effect of the polymer structure on the emulsification and viscosity reduction of heavy oil was also discussed. Among three copolymers, PAAI15 formed the most stable emulsion with heavy oil and the emulsion had the lowest viscosity. PAAI15 had the potential for further study. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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An: 145429894
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  Label: Title
  Group: Ti
  Data: Synthesis and laboratory evaluation of iso‐tridecyloxypolyethylene glycol acrylate copolymers as potential viscosity reducers for heavy oil.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Fusheng%22">Zhang, Fusheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lei%2C+Qun%22">Lei, Qun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Guoliang%22">Liu, Guoliang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liao%2C+Gongqing%22">Liao, Gongqing</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Xiaofang%22">Xu, Xiaofang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Meng%2C+Weidong%22">Meng, Weidong</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> wdmeng@dhu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Energy+Science+%26+Engineering%22">Energy Science & Engineering</searchLink>. Sep2020, Vol. 8 Issue 9, p3303-3313. 11p.
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  Data: *<searchLink fieldCode="DE" term="%22Heavy+oil%22">Heavy oil</searchLink><br />*<searchLink fieldCode="DE" term="%22Acrylamide%22">Acrylamide</searchLink><br />*<searchLink fieldCode="DE" term="%22Viscosity%22">Viscosity</searchLink><br />*<searchLink fieldCode="DE" term="%22Polymer+solutions%22">Polymer solutions</searchLink><br />*<searchLink fieldCode="DE" term="%22Molecular+weights%22">Molecular weights</searchLink><br />*<searchLink fieldCode="DE" term="%22Ethylene+glycol%22">Ethylene glycol</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As driven by the increase in global fuel demand and decrease in worldwide reserves of conventional oil, it is important to develop new production technologies for heavy oil. In this work, copolymers PAAI7, PAAI10, and PAAI15 were synthesized and evaluated as potential viscosity reducers for heavy oil. iso‐Tridecyloxypolyethylene glycol acrylates (I13CxAA, x = 7, 10, 15), acrylic amide (AM), and 2‐acrylamido‐2‐methylpropane sulfonic acid (AMPS) were polymerized to give the copolymers PAAIx, respectively. Copolymers PAAIx were characterized by FTIR, 1H NMR spectroscopy, and TGA and showed good thermal stabilities as the decomposition temperature was above 350°C. Their viscosity‐average molecular weights were measured as in the range between 6.53 × 106 and 10.58 × 106 g/mol. The effects of temperature, shear rate, and salinity on the viscosity of polymer solutions were studied, and PAAIx had reasonable rheological properties. The solutions of PAAIx in formation water could emulsify heavy oil sample to form oil‐in‐water emulsion when mass ratio of oil:water was in the range of 6:4‐2:8, respectively. The rates of reduction in viscosity of emulsions compared with that of original oil sample were 53.5%‐97.5% at 50°C under shear rate of 20 s−1. The effects of oil:water ratio, emulsifying temperature, and shear rate on the viscosities of emulsions were extensively studied, and the effect of the polymer structure on the emulsification and viscosity reduction of heavy oil was also discussed. Among three copolymers, PAAI15 formed the most stable emulsion with heavy oil and the emulsion had the lowest viscosity. PAAI15 had the potential for further study. [ABSTRACT FROM AUTHOR]
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        Value: 10.1002/ese3.722
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 3303
    Subjects:
      – SubjectFull: Heavy oil
        Type: general
      – SubjectFull: Acrylamide
        Type: general
      – SubjectFull: Viscosity
        Type: general
      – SubjectFull: Polymer solutions
        Type: general
      – SubjectFull: Molecular weights
        Type: general
      – SubjectFull: Ethylene glycol
        Type: general
    Titles:
      – TitleFull: Synthesis and laboratory evaluation of iso‐tridecyloxypolyethylene glycol acrylate copolymers as potential viscosity reducers for heavy oil.
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            NameFull: Zhang, Fusheng
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            NameFull: Lei, Qun
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            NameFull: Liu, Guoliang
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            NameFull: Liao, Gongqing
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            NameFull: Xu, Xiaofang
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            NameFull: Meng, Weidong
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            – D: 01
              M: 09
              Text: Sep2020
              Type: published
              Y: 2020
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              Value: 8
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              Value: 9
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            – TitleFull: Energy Science & Engineering
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