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Synthesis and Properties Evaluation of Nonionic-Anionic Surfactants Suitable for Enhanced Oil Recovery Using Sea Water

  • O. Sha , W. Zhang and R. Lu
Published/Copyright: March 31, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 45 Issue 2

Abstract

In view of imperfections of conventional anionic and nonionic surfactants used for enhanced oil recovery, especially the characteristics of high salinity and high Calcium/Magnesium for sea water flooding, a new novel displacement agent suitable for sea water flooding was synthesized through alkoxylation, epoxidation, sulfonation reaction with fatty alcohol as core. The structure of the product was characterized by IR. The properties of the product, including salt tolerance, temperature resistance etc. were evaluated. At 70 °C, when the concentration of this surfactant is 0.3 %, the interfacial tension between simulated water solution and Bohai1A-4 well crude reaches 10−3 mN/m order, the salt tolerance reaches 50 000 mg/L, the resistance to calcium and magnesium reaches 2000 mg/L. The laboratory physical simulation test shows that the binary complex system (polymer + surfactant) can enhance the recovery ratio by 17.9 %, while better synergistic effect of the system is obtained.

Kurzfassung

Angesichts der Imperfektion konventioneller anionischer und nichtionischer Tenside beim Einsatz in der fortgeschrittenen Ölförderung, insbesondere der Charakteristika des Meerwassers mit hoher Salinität und hohem Calcium/Magnesium-Ionengehalt, wurde durch Alkoxylierung, Epoxidierung und Sulfonierung mit Fettalkoholen ein neuartiges, für Meerwasser geeignetes Ersatzhilfsmittel synthetisiert. Die Struktur des Produktes wurde mittels IR charakterisiert und die Eigenschaften, einschließlich Salztoleranz und Temperaturresistenz, etc. bewertet. Bei 70 °C, wenn die Konzentration dieses Tensids 0,3 % beträgt, erreicht die Grenzflächenspannung zwischen simulierter Wasserlösung und dem Bohai1A-4-Rohölbohrloch im Ablauf 10−3 mN/m, die Salztoleranz 50 000 mg/L und die Resistenz gegen Calcium/Magnesium-Ionen 2000 mg/L. Der physikalische Simulationstest im Labor zeigt, dass aufgrund eines besseren synergistischen Systemeffektes, das binäre Komplexsystem (Polymer + Tensid) das Ausbeuteverhältnis um 17,9 % erhöhen kann.

Key words:: Anionic-nonionic surfactants; alkylpolyoxyethylene and polyoxypropylene ether sodium sulfonate; enhanced oil recovery; sea water flooding; interfacial tension
Stichwörter:: Anionisch-nichtionische Tenside; Alkylpolyoxyethylenether- und Polyoxypropylenether-Natriumsulfonat; fortgeschrittene Ölförderung; Meerwasser; Grenzflächenspannung
∗ Sha ou, No. 1658 Pudongbeilu, Shanghai, China, 201208, Tel.: +8621684621976510, Fax: +862168462283. E-mail:

Sha ou was born in 1969. He is now a senior engineer at Shanghai Petrochemical Research Institute, SINOPEC, China and a doctor student at Lanzhou Institute of Chemical Physics. His main research is synthesis and application of the surfactants in enhanced oil recovery.

Zhang Weidong was born in 1969. He is now an engineer at Shanghai Petrochemical Research Institute, SINOPEC, China. His main research is synthesis and application of the surfactants in enhanced oil recovery.

Lu Runhua was born in 1962. She obtained a PhD from the Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences in 1997. Since 2005, she has been teaching and working at Chengdu Institute of Biology. Her major is supramolecular chemistry and natural products chemistry.

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Received: 2007-12-18
Published Online: 2013-03-31
Published in Print: 2008-03-01

© 2008, Carl Hanser Publisher, Munich

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https://doi.org/10.3139/113.100365
Keywords for this article
Anionic-nonionic surfactants; alkylpolyoxyethylene and polyoxypropylene ether sodium sulfonate; enhanced oil recovery; sea water flooding; interfacial tension

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Impact of Heat Treatment on the Performance of Polymers as Ferric Ions Stabilization Agents for Aqueous Systems
  7. Novel Surfactants
  8. Preparation and Performance Properties of a Series of Novel Anionic Gemini Surfactants
  9. Biologically Active Tin Compounds Based on Aziridine and Azepane Derivatives
  10. Obituary
  11. Obituary
  12. Synthesis
  13. Synthesis and Properties Evaluation of Nonionic-Anionic Surfactants Suitable for Enhanced Oil Recovery Using Sea Water
  14. Synthesis and Characterisation of Antifungal Agents Containing Copper(II) Soaps and Derived from Mustard and Soyabean Oil
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