西南石油大学学报(自然科学版) ›› 2002, Vol. 24 ›› Issue (6): 60- 63.DOI: 10.3863/j.issn.1000-2634.2002.06.018

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

LABORATORY STUDY ON INTERFACIAL RHEOLOGICAL PROPERTY OF POLYMER/ SURFACTANT DISPLACEMENT SYSTEM

YE Zhong-bin SHI Lei-ting YANG Jian-jun LUO Ping-ya   

  1. Southwest Petroleum Institute , NanchongSichuan 637001 , China
  • Received:2002-03-04 Revised:1900-01-01 Online:2002-12-20 Published:2002-12-20
  • Contact: YE Zhong-bin

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Abstract: By means of deepOchannel viscous traction interfacial viscometer and improved measuring method , the surface viscosity of polymer/ surfactant dual system and the interfacial viscosity between polymer/ surfactant and simulation oil have been measured. Results show that the rheological property of surface layer of polymer/ surfactant fluids system is quite different from that of interfacial layer between polymer/ surfactant and simulation oil. The new parameter , dimensionless interfacial viscosity proposed in this paper , can describe the interfacial rheological property better , because it is free from the influence of bulk viscosity. Polymer concentration influences interfacial rheological property remarkably , while polymer concentration located in the two sides of its critical associating concentration , the tendencies of dimensionless surface viscosity and dimensionless interfacial viscosity with surfactant concentration are inconsistent .

Key words: interfacial viscosity, combination chemical flooding, enhanced oil recovery, hydrophobical associating polymer, polymer, surfactant

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