Range Estimation of Interfacial Tension and Emulsifying Properties of Surfactants in Imbibition

  • Yi ZhangEmail author
  • Jian-Guo Li
  • Hai-Hui Chen
  • Hong-Yan Cai
  • Hongfu Fan
  • Yun Sun
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)


Interfacial tension and emulsion stability are two of the most important factors in imbibition agent properties which influence the imbibition efficiency. Through a large number of oil sand and core laboratory experiments, the core experimental model which is obtained by the method of curve-fitting was studied. The regression analysis of physical simulation experiment results was carried out by using curve-fitting method and binary regression method. The constant term of interfacial tension regression equation model has a significant effect at the level of α = 0.05 by using binary regression method. And the coefficient term and equation passed the inspection of significance at the level of α = 0.01 which can explain more than 80% of the experimental points. The constant term of the model obtained by analyzing the results of oil sand experiment passed the inspection of significance at the level of α = 0.05, meanwhile the coefficient term and equation passed the inspection of significance at the level of α = 0.0025 and α = 0.02. By synthetically analyzing the consequence of oil sand and core experiment, the most suitable range of two attribute parameters in ultra-/extra-low permeability reservoir was worked out. The range of interfacial tension is from 3 × 10−4 to 2 × 10−1mN/m, and emulsion stability is from 1.4 × 10−1% to 9.0%. The results reflected that pore of low permeability reservoir rock had a limiting effect to imbibition agents. It can also provide an important experimental basis for further study of optimizing and evaluation of imbibition agents.


Binary regression method SPSS Ultra-low/extra-low permeability Emulsion stability Interfacial tension 



Supported by Advanced Research Project of RIPED of CNPC (Grant No. 2015yj-03) and the Coalbed Gas Joint Research Foundation of Shanxi Province (Grant No. 2013012003).


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Yi Zhang
    • 1
    Email author
  • Jian-Guo Li
    • 1
  • Hai-Hui Chen
    • 2
  • Hong-Yan Cai
    • 1
  • Hongfu Fan
    • 2
  • Yun Sun
    • 2
  1. 1.State Key Laboratory of EOR, Research Institute of Petroleum Exploration & Development, EOR DepartmentCNPCBeijingChina
  2. 2.School of EnergyChina University of Geosciences (Beijing)BeijingChina

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