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An Experimental Study on Alkaline/Surfactant/Polymer Flooding Systems Using Natural Mixed
Carboxylate

MU Jianhai; LI Ganzuo; LI Ying   

  1. Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong
    University, Jinan 250100, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-06-28 Published:2001-06-28
  • Contact: MU Jianhai

天然混合羧酸盐ASP复合驱油体系的研究

牟建海; 李干佐; 李英   

  1. Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong
    University, Jinan 250100, China
  • 通讯作者: 牟建海

Abstract: Orthogonal-test-design method has been used to determine the optimal formula by phase
behavior and interfacial tension studies, respectively. The effect of each component of two
alkaline/surfactant/polymer flooding systems on interfacial tension is discussed, in which
a low-price natural mixed carboxylate (SDC) is used as the major surfactant. The results
indicate that the optimal composition is SDC (0.5%), alkaline NaHCO3/Na2CO3 with mass ratio
of 1 (1.0%), and hydrolyzed polyacrylamide(0.1%). In the coreflood experiment, their oil
recovery is increased by about 25.2% and 26.8% original oil in place, respectively.

Key words: alkahne/surfactant/polymer flooding system, natural mixed carboxylate, interfacial tension, phase behavior, orthogonal-test-design

摘要: Orthogonal-test-design method has been used to determine the optimal formula by phase
behavior and interfacial tension studies, respectively. The effect of each component of two
alkaline/surfactant/polymer flooding systems on interfacial tension is discussed, in which
a low-price natural mixed carboxylate (SDC) is used as the major surfactant. The results
indicate that the optimal composition is SDC (0.5%), alkaline NaHCO3/Na2CO3 with mass ratio
of 1 (1.0%), and hydrolyzed polyacrylamide(0.1%). In the coreflood experiment, their oil
recovery is increased by about 25.2% and 26.8% original oil in place, respectively.

关键词: alkahne/surfactant/polymer flooding system;natural mixed carboxylate;interfacial tension; phase behavior;orthogonal-test-design