polymers/nonionic polyacrylamide (npam) – industry news in belgium

polymers/nonionic polyacrylamide (npam) – industry news in belgium
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  • What is nonionic polyacrylamide (NPAM) gel?
  • Nonionic polyacrylamide (NPAM) gel was prepared for in-depth profile control. A compact three dimensional network structure was formed in the bulk gel system. Retention, adsorption and bridging across the pore throats occur in high permeability zones. The NPAM gel shows superior high temperature resistant. °C.
  • Can nonionic polyacrylamide be used as a gel fracturing fluid?
  • Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization.
  • What factors affect NPAM molecular weight?
  • The effects of the monomer concentration, initiator concentration, reaction time, feeding temperature and reaction temperature on the molecular weight were systematically investigated through single-factor and orthogonal experiments. The NPAM molecular weight can be controlled by adjusting these factors.
  • Does increasing NPAM molecular weight affect gel entanglement?
  • It is demonstrated that increasing the NPAM molecular weight and concentration strengthens the degree of gel network entanglement, resulting in shortened gelation time and enhanced gel strength. For every million increases of NPAM molecular weight ranging from 485 × 10 4 to 1217 × 10 4 Da, the gelation time reduces by 1.7 h.