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Research on Surfactant Flooding in High-temperature and High-salinity Reservoir for Enhanced Oil Recovery

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Published/Copyright: August 16, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 50 Issue 3

Abstract

The aim of this work was to research the solution properties of a new surfactant flooding system for high temperature and high salinity reservoir, which include trimeric sulfonate surfactants 1,2,3-tri(2-oxypropyl sulfonation-3-alkylether-propoxyl) propanes (TTSS-n) and anion-nonionic surfactant NPSO [sodium nonyl phenol polyethyleneoxy ether sulfonate, (EO = 10)]. The critical micelle concentrations (CMCs) of five trimeric sulfonate surfactants were smaller than 400 mg L−1. Furthermore, their interfacial tensions (IFTs) could reach an ultralow value with Tazhong 4 oil at lower concentrations. Through optimized formulation, we found that TTSS-12 had better properties and was selected as the major component of the surfactant flooding system. We designed an optimal formulation of the surfactant flooding system with 1 000 mg · L−1 TTSS-12 and 1 000 mg · L−1 NPSO surfactant. The system with a very small surfactant concentration could reach ultralow IFT with Tazhong 4 crude oils at high temperature (110 °C) and high concentration formation brine (112,228.8 mg/L TDS), which proved that the simpler component surfactant had better reservoir compatibility. NPSO could weaken the disadvantage of the surfactant TTSS-12 in oil/water interface. The stability of this surfactant flooding system was evaluated by aging time, static adsorption and chromatographic separation. All experiments showed that it still keeps ultralow IFT in high temperature and high salinity conditions. Coreflooding experimentation showed that average oil recovery reached 9.8 wt% by surfactant flooding, therefore, it is feasible to use as a surfactant flooding system for enhanced oil recovery (EOR).

Kurzfassung

Ziel dieser Arbeit war es, die Lösungseigenschaften eines neuen Tensidflutungssystems für heiße und hoch-salzhaltige Reservoire zu untersuchen. Das Tensidflutungssystem enthält trimere Sulfonattenside (1,2,3-Tri(2-oxypropylsulfonation-3-alkyletherpropoxyl)propane (TTSS-n)), und das anionisch-nichtionische Tensid Natriumnonylphenolpolyethylenoxyethersulfonat, (NPSO mit EO = 10). Die kritischen Mizellbildungskonzentrationen (CMCs) der fünf trimeren Sulfonattenside sind kleiner als 400 mg L−1. Des Weiteren liefern sie in geringeren Konzentrationen mit dem Tazhong-4-Öl ultra-niedrige Grenzflächenspannungen (ITF). Durch die Optimierung der Formulierung konnten wir herausfinden, dass TTSS-12 bessere Eigenschaften aufwies, weshalb wir dieses Tensid als Hauptkomponente des Tensidflutungssystems auswählten. Wir entwickelten für das System eine optimale Formulierung, die 1 000 mg L−1 TTSS-12 und 1 000 mg L−1 NPSO enthielt. Das System mit einer sehr kleinen Tensidkonzentration konnte mit dem Tazhong 4-Rohöl bei hohen Temperautren (110 °C) und hohen Salzfrachten (112 228,8 mg/L TDS) eine ultra-niedrige IFT erzielen. Die Stabilität dieses Tensidflutungssystems wurde mit Hilfe der Alterungszeit, der statischen Adsorption und der chromatographischen Trennung beurteilt. Alle Experimente zeigten deutlich, dass es seine ultraniedrigen ITF bei hohen Temperaturen und hohem Salzgehalt behält. Die Experimente zur Gesteinsflutung mit dem Tensidsystem zeigten, dass mit einem Tensidsystem eine durchschnittliche Erdölgewinnung von 9,8 wt% erreicht werden kann. Daher ist das System als Flutungssystem für die erweiterte Erdölförderung (EOR) brauchbar.

Key words:: Surfactant Flooding; high-temperature; high-salinity; enhanced oil recovery (EOR)
Schlüsselwörter:: Tensidfluten; hohe Temperaturen; hohe Salzfracht; erweitere Erdölförderung (EOR)
* Correspondence address, Dr. Jinzhou Zhao, State Key Laboratory of Oil and Gas Reservoir, Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China, Tel.: +86-28-83 03 27 97, E-Mail:

Notes: The authors declare no competing financial interest.

Ming Zhou received his B. Sc., M. Sc. and Ph. D. from the Southwest Petroleum University in Chengdu, PR China, and worked at the School of Materials Science and Engineering at Southwest Petroleum University as a research chemist in 2002. He is currently an associate professor at the State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation. His research field is the synthesis and applications of surfactants and polymers.

Jinzhou Zhao received his M. Sc. in 1985 from the Southwest Petroleum University in Nanchong, PR China, and in the same year worked in the State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation at the Southwest Petroleum University. He is a senior specialist in petroleum engineering with a research field in oil well fracturing and acidizing.

Xu Wang received his M. Sc. in 1992 from the Southwest Petroleum University and his Ph. D. in 2001 from the Sichuan University, PR China. He is a senior specialist in material engineering with a research field in oilfields materials.

Yang Yan received his B. Sc., M. Sc. and Ph. D. from the Southwest Petroleum University in Chengdu of the PR China and worked at the School of Materials Science and Engineering at Southwest Petroleum University as a research chemist in 2006, he is an associate professor. Her research field is the synthesis and applications of surfactants.

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Received: 2012-10-14
Published Online: 2013-08-16
Published in Print: 2013-05-15

© 2013, Carl Hanser Verlag, Munchen

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Review Article
  6. Cost Effective Procedures for Extremely Efficient Synthesis of Environmental Friendly Surfactants
  7. Application
  8. Research the Oil Displacing Performance of Dodecyl Polyoxyethylene Ether Sulfonates at Difficult Conditions
  9. Research on Surfactant Flooding in High-temperature and High-salinity Reservoir for Enhanced Oil Recovery
  10. Environmental Chemistry
  11. Determination of Polyaromatic Hydrocarbons in Domestic, Commercial and Industrial soot samples
  12. Physical Chemistry
  13. Effect of Oil/Water Mass Ratios on the Composition and Solubilization of Microemulsion Systems Containing Tween/Alcohol/Alkane/NaCl Solution
  14. Properties of Binary Surfactant System of Alkyl Polyglycosides and α-Sulphonated Fatty Acid Methyl Ester
  15. Mixed Micellization and Surface Properties of Ionic Liquids/Triton X-100 Mixture System in Aqueous Media
  16. Preparation and Application of Cationic Surfactant Ion-selective Electrode
  17. Novel Surfactants
  18. Synthesis and Properties of Monododecyl Diphenyl Methane Disulfonate
  19. Technical Chemistry
  20. The Wettability Alteration Behavior of Cationic Gemini Surfactants on Oil-aged Mica Mineral Surfaces
https://doi.org/10.3139/113.110245
Keywords for this article
Surfactant Flooding; high-temperature; high-salinity; enhanced oil recovery (EOR)

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Review Article
  6. Cost Effective Procedures for Extremely Efficient Synthesis of Environmental Friendly Surfactants
  7. Application
  8. Research the Oil Displacing Performance of Dodecyl Polyoxyethylene Ether Sulfonates at Difficult Conditions
  9. Research on Surfactant Flooding in High-temperature and High-salinity Reservoir for Enhanced Oil Recovery
  10. Environmental Chemistry
  11. Determination of Polyaromatic Hydrocarbons in Domestic, Commercial and Industrial soot samples
  12. Physical Chemistry
  13. Effect of Oil/Water Mass Ratios on the Composition and Solubilization of Microemulsion Systems Containing Tween/Alcohol/Alkane/NaCl Solution
  14. Properties of Binary Surfactant System of Alkyl Polyglycosides and α-Sulphonated Fatty Acid Methyl Ester
  15. Mixed Micellization and Surface Properties of Ionic Liquids/Triton X-100 Mixture System in Aqueous Media
  16. Preparation and Application of Cationic Surfactant Ion-selective Electrode
  17. Novel Surfactants
  18. Synthesis and Properties of Monododecyl Diphenyl Methane Disulfonate
  19. Technical Chemistry
  20. The Wettability Alteration Behavior of Cationic Gemini Surfactants on Oil-aged Mica Mineral Surfaces
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