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China Surfactant Detergent & Cosmetics ›› 2018, Vol. 48 ›› Issue (11): 617-621.doi: 10.13218/j.cnki.csdc.2018.11.003

• Development and application • Previous Articles     Next Articles

Research on the seepage characteristics and dynamic damage rules of thealkali/surfactant/polymer flooding system (ASP)

ZHAO Xi-sen1, YANG Hong1, YU Feng2, WANG Jie3, WANG Hong1, JIN Zhi1   

  1. 1.Research Institute of Shaanxi Yanchang Petroleum (Group) Co.,Ltd,Xi’an,Shaanxi 710075,China;
    2.NO.1 Production Plant of Huabei Oilfield Branch Company,PetroChina,Renqiu,Hebei 062550,China;
    3.Institute of Unconventional and Natural Gas,China University of Petroleum (Beijing),Beijing 102249,China
  • Received:2018-04-28 Online:2018-11-22 Published:2019-03-18

Abstract: To solve the problems that (1) the ASP seepage characteristics in real petroleum reservoir can’t be properly simulated when using single core only;and (2) the loss can’t be evaluated accurately by the evaluation with just static loss,in this work,a seepage experiment for the ASP system was carried out to study its seepage characteristics and loss rules with different core scales on the basis of measuring method optimization.The experimental results show that,with the increase of core scale,the alkali and polymer curves are gradually pushed to the right and their loss ratios influenced by adsorption and retention are gradually increased.In contrast,the increase of core scale nearly has no influence on surfactant.The sequence of the relative concentration at the same position of the upstream region of seepage front is:alkali>surfactant>polymer.In addition,the contribution of adsorption,retention and shear on polymer viscosity loss are different with different stages of injection.

Key words: surfactant, ASP system, core scale, seepage, loss rule

CLC Number: 

  • TQ423