Volume 33 Issue 1
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PENG Fei, FANG Bo, LU Yongjun, QIU Xiaohui, HUANG Caihe, LIU Yuting. Rheology and Drag Reduction of Hydrophobic Amphoteric Quadripolymer Solution[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(1): 92-96. doi: 10.3969/j.issn.1001-5620.2016.01.019
Citation: PENG Fei, FANG Bo, LU Yongjun, QIU Xiaohui, HUANG Caihe, LIU Yuting. Rheology and Drag Reduction of Hydrophobic Amphoteric Quadripolymer Solution[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(1): 92-96. doi: 10.3969/j.issn.1001-5620.2016.01.019
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Rheology and Drag Reduction of Hydrophobic Amphoteric Quadripolymer Solution

doi: 10.3969/j.issn.1001-5620.2016.01.019
  • 1.

    College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

  • 2. Langfang Branch of Research Institute of Petroleum Exploration and Development, Langfang Hebei 065007, China

  • Received Date: 2015-12-01
  • Publish Date: 2016-01-30
    Abstract
  • A hydrophobic amphoteric quadripolymer PAADC was synthesized for use as a drag reducer in slippery water fracturing fluids. PAADC, made from monomers AM, AMPS, DMAM and CDAAC, was studied in laboratory on its rheology and drag reduction capacity, and the rheology of PAADC solution at different concentrations is measured. Change of the friction coefficient and rate of drag reduction of the PAADC solutions with generalized Reynolds number is discussed in this paper. Comparison between the rheology and drag reduction capacity of PAADC and those of another water-soluble terpolymer PAAD (synthesized from AM, AMPS and DMAM) was conducted. PAADC solution has, as the studies indicated, very good shear thinning capacity, and the thixotropy of PAADC is better than that of PAAD at the same concentration. The maximum rates of drag reduction of PAADC solution of different concentrations (0.1%, 0.2%, 0.3%, and 0.4%) are 32.29%, 63.32%, 69.52% and 67.35%, respectively, indicating that PAADC concentration remarkably affects the drag reduction capacity of thesolutions, and 0.3% PAADC solution is preferred in drag reduction.

     

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