Volume 33 Issue 5
Sep.  2016
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WU Wei, LIU Pingping, SUN Hao, ZHANG Xiaoyun. Synthesis and Application of a Hydrophobically Associating Polymer Viscosifier for Fracturing Fluids[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 114-118. doi: 10.3969/j.issn.1001-5620.2016.05.024
Citation: WU Wei, LIU Pingping, SUN Hao, ZHANG Xiaoyun. Synthesis and Application of a Hydrophobically Associating Polymer Viscosifier for Fracturing Fluids[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 114-118. doi: 10.3969/j.issn.1001-5620.2016.05.024

Synthesis and Application of a Hydrophobically Associating Polymer Viscosifier for Fracturing Fluids

doi: 10.3969/j.issn.1001-5620.2016.05.024
  • Received Date: 2016-01-09
  • Publish Date: 2016-09-30
  • A hydrophobically associating quadripolymer, AAMS-1, was synthesized through reverse emulsion polymerization, using AM, AMPS, hydrophobic monomer M (2-Dimethyl hexadecaneaminomethacrylate chloride)/rigid monomer S (4-acrolylamino sodium benzenesulfonate). The synthesized AAMS-1 was characterized with IR spectrum. Thermogravimetric analysis showed that AAMS-1 was chemically stable at 250℃. The synthesized AAMS-1 emulsion had particle sizes around 2,500 nm, with critical associating concentration of 0.15%. The network structure of AAMS-1 in fracturing fluids can be clearly seen using with an SEM. Fracturing fluids formulated with AAMS-1 have good viscoelasticity, sand carrying capacity, and permeability protection performance. Water solution of 0.6% AAMS-1 sheared at 150℃ and 170 s-1 for 2 h had residue viscosity not less than 50 mPa·s, indicating that AAMS-1 had satisfactory shearing stability and high temperature stability.

     

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