design of nonionic polyacrylamide resin from Bangalore

design of nonionic polyacrylamide resin from Bangalore
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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 phenolic resin cross-linked NPAM gel be used for water production control?
  • Conclusions In this work, a phenolic resin cross-linked NPAM gel was selected as an in-depth profile control agent for water production control. The gelation time and gel strength of the NPAM gel can be controlled by adjusting the NAPM polymer or cross-linker concentration.
  • Where did NPAM and phenolic resin cross-linker come from?
  • Nonionic polyacrylamide (NPAM) and phenolic resin cross-linker were purchased from Yuguang Co. Ltd., China. The hydrolysis degree and average molecular weight of NPAM were 3.31% and 9,650,000 g/mol, respectively. The low salinity of brine (492.08 mg/L) was used in all experiments.
  • Why is NPAM a continuous viscoelastic fluid?
  • When the NPAM polymer and cross-linker formed a bulk gel in an ampoule, the NPAM gel was a continuous viscoelastic fluid ( Fig. 10 (a)). As the gel formed in the formation, this viscoelasticity property contributes to bridge across the pore throats and restricts the flow of water in the high permeability zones.