Binary combination flooding system of ethanolamine/petroleum sulfonate

Zengbao Wang, Yingrui Bai, Xiutai Zhao, Jinyu Tang

Research output: Contribution to journalArticlepeer-review


With the oil-water interfacial tension as the property evaluation index, the binary combination flooding composed of organic alkali ethanolamine (MEA) and petroleum sulfonatewas optimized as follows, 0.30% SLPS+0.30% MEA. On this basis, the interfacial ability, salt resistance, temperature resistance, emulsification and oil displacing properties of the optimized binary combination flooding MEA/SLPS system was evaluated by comparing that of common used binary combination flooding system - inorganic alkali/surfactants(NaOH/SLPS) system. The experimental results showed that there was no large difference with respect to the ability of reducing oil-water interfacial tension between the MEA/SLPS system and that of NaOH/SLPS system, both could make the interfacial tension be below of 10-3 mN/m, however, with MEA/SLPS system, the oil-water interfacial tension could be reduced to the lowest value within shorter time than that with the NaOH/SLPS system. The MEA/SLPS system was better in the aspects of salt resistance, emulsification and oil-displacing ability, the salt resistance being up to 30000 mg/L, the enhanced oil recovery being up to 13.2%, except for its worse ability of temperature resistance, being only 70°C. Within certain temperature range, organic alkali could substitute inorganic alkali used as some kind of chemical flooding alkali in the future with better effect of oil displacement.

Original languageEnglish
Pages (from-to)570-574
Number of pages5
JournalOilfield Chemistry
Issue number4
Publication statusPublished - Dec 25 2015
Externally publishedYes


  • Binary combination flooding
  • Inorganic alkali
  • Interfacial tension
  • Oil displacement
  • Organic alkali
  • Petroleum sulfonate

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Energy Engineering and Power Technology


Dive into the research topics of 'Binary combination flooding system of ethanolamine/petroleum sulfonate'. Together they form a unique fingerprint.

Cite this