high viscosity polyacrylamide_fushun longfeng chemical in luxembourg

high viscosity polyacrylamide_fushun longfeng chemical in luxembourg
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  • Does high-salinity formation-water affect polyacrylamide viscosity?
  • Polyacrylamides, including partially hydrolyzed polyacrylamide (HPAM), are commonly used for polymer flooding. The soaring demand for polymer flooding has motivated a deeper investigation of the impact of high-salinity formation-water conditions on polyacrylamide’s viscosity.
  • Does polymer flooding affect viscosity in high-salinity formation-water?
  • According to the reports from oilfields in which polymer flooding has been applied, 5–4 it is a big challenge to maintain the polymer’s viscosity in high-salinity formation-water. Polyacrylamides, including partially hydrolyzed polyacrylamide (HPAM), are commonly used for polymer flooding.
  • Does calcium concentration affect molecular configuration and viscosity of polyacrylamide molecules?
  • Partially hydrolyzed polyacrylamide molecules in high-salinity formation-water solution are simulated using the molecular dynamics method to investigate the impact of calcium concentration on molecular configuration, network, and viscosity from microscopic dense to dilute phases. The key results are as follows:
  • How to increase viscosity of polymer in formation-water?
  • The injection rate of polymer flooding and the calculated concentration threshold are essential for increasing the viscosity of the polymer in formation-water. This work was supported by the National Key Research and Development Program of China (Grant No. 2018YFA0702400).