cationic polyacrylamide friction reducer specifications

cationic polyacrylamide friction reducer specifications
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  • What factors affect the performance of polyacrylamide-based friction reducers?
  • An important variable that highly affects the performance of polyacrylamide-based friction reducers is ion content. Performance, therefore, becomes dependent on both the ion type (cationic, anionic, monovalent or divalent) and the concentration present in the source water (Xu et al., 2016).
  • What is a friction reducer (polyacrylamide)?
  • Due to the large volumes of water used, a friction reducer (polyacrylamide) is added to the fluid package to reduce the pumping energy required for the operation. The presence of the friction-reducing polymer (polyacrylamide) can reduce the friction loss and required pressures by as much as 60%.
  • What is the optimum drag reducer concentration for modified polyacrylamide?
  • The modified polyacrylamide is a typical hydrophobically associating polymer, reaching a CAC at a mass concentration of about 0.25% (by weight). It is found from the friction test that the optimum concentration of the drag reducer is about 0.05% in fresh water, and the highest drag-reducing rate reaches as high as 72%.
  • Can cationic polymers be used as drag reducers?
  • In our current work, a water-soluble cationic monomer with very simple structure was first synthesized under room temperature and pressure, then, a very simple cationic hydrophobically associating polymer was synthesized, and its application prospect as a drag reducer was tested in the laboratory.