西南石油大学学报(自然科学版) ›› 2005, Vol. 27 ›› Issue (4): 44-46.DOI: 10.3863/j.issn.1000-2634.2005.04.13

• 油气化学工程与化工 • Previous Articles     Next Articles

SYNTHESIS AND PERFORMANCE EVALUATION OF COPOLYMERS FLOODING AGENT PFl

L1U Ping-de，NIU Ya-bin，ZHANG Mei   

  1. University of Petroleum，Beijing 102249,China.
  • Received:2005-03-05 Revised:1900-01-01 Online:2005-08-20 Published:2005-08-20

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Abstract: Owing to poor temperature-tolerance, salt-resistance and anti-shearing of partially hydroyzed polyacrylamide(PHPA) in the reservoir with high temperature and high salinity, the copolymer of acryiamide-N-tetradecyl acrylamide2-acrylamino-2-methyl propane sulfuric acid(PFI) have been synthesized by micellar polymerization method，and the solubility and property of temperature-tolerance and salt-resistance have greatly Been improved. The effect of the polymerization temperature on molecular,the effect of the concentration of hydrophobic monomer and polar monomer on the apparent viscosity of the copolymer in different complex brine have been investigated. The property of anti-shearing of the copolymer has been evaluated. Result show that PFI has good viscosifying actron and property of anti-shearing in different complex brine when the content of the hydrophobic monomer and polar monomer are 0.5% and 6%，respectively，
initiation temperature is 11℃，which could meet the needs of polymer flooding in the reservoir with different temperature and salinity formation.

Key words: polymer flooding, temperature-tolerance, salt-resistance, synthesis, monomer

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