Novel Surfactants for ultralow interfacial tension in a wide range of surfactant concentration and temperature

被引:113
作者
Aoudia, Mohamed
Al-Shibli, Mohamed Nasser
Al-Kasimi, Liali Hamed
Al-Maamari, Rashid
Al-Bemani, Ali
机构
[1] Sultan Qaboos Univ, Coll Sci, Al Khoud 123, Oman
[2] Sultan Qaboos Univ, Coll Engn, Al Khoud 123, Oman
关键词
compatibility; dynamic interfacial tension; surfactants; ultralow transient interfacial tension;
D O I
10.1007/s11743-006-5009-9
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
This work investigates the possibility of injecting dilute aqueous solutions of novel surfactants into the Yibal field (Sultanate of Oman). This was accomplished through an experimental protocol based on the following criteria: (i) compatibility of the surfactants with the high-saline reservoir water (similar to 200 g/L); (ii) low interfacial tension (IFT) between crude oil and reservoir water (less than 10(-2) mN m(-1)); and (iii) maintaining the low IFT behavior during the entire surfactant flooding. Novel surfactants selected in this study consist of a series of ether sulfonates (AES-205, AES-128, AES-506, and 7-58) and an amphoteric surfactant (6-105). These surfactants were found to be compatible with reservoir water up to 0.1% surfactant concentration, whereas 6-105 and 7-58 showed compatibility within the full range of surfactant concentration investigated (0.001-0.5%). All surfactant systems displayed dynamic IFT behavior, in which ultralow transient minima were observed in the range 10(-4)-10(-3) mN m(-1), followed by an increase in the IFT to equilibrium values in the range 10(-3)-10(-1) mN m(-1). The results also showed that with respect to concentration (0.05-0.5%) and temperature (45-80 degrees C), AES-205 and 7-58 surfactants exhibit a wide range of applicability, with the IFT remaining below 10(-2) mN m(-1), as required for substantial residual oil recovery. In addition, ultralow IFT were obtained at surfactant concentrations as low as 0.001%, making the use of these surfactants in enhanced oil recovery extremely cost-effective.
引用
收藏
页码:287 / 293
页数:7
相关论文
共 21 条
  • [1] ABE M, 1977, SURFACTANT SCI SER, V66, P279
  • [2] Al-Ashraf T, 2002, PET SCI TECHNOL, V20, P773
  • [3] Alkaline surfactant polymer formulation for carbonate reservoirs
    Al-Hashim, HS
    Obiora, V
    Al-Yousef, HY
    Fernandez, F
    Nofal, W
    [J]. PETROLEUM SCIENCE AND TECHNOLOGY, 2005, 23 (5-6) : 723 - 746
  • [4] ASKINAT AM, 1981, P 3 EUR S ENH OIL RE, P43
  • [5] BAGHDADI T, 2000, 13 EUR PETR C AB SCO, P1
  • [6] CAYIAS JL, 1975, 8 ACS S SER, P234
  • [7] INTERACTION OF ENHANCED OIL-RECOVERY SURFACTANTS WITH MODEL CRUDE-OIL SURFACTANTS
    CLINT, JH
    NEUSTADTER, EL
    WHEELER, PA
    [J]. COLLOIDS AND SURFACES, 1984, 11 (1-2): : 129 - 136
  • [8] OIL-RECOVERY BY ALKALINE WATERFLOODING
    COOKE, CE
    WILLIAMS, RE
    KOLODZIE, PA
    [J]. JOURNAL OF PETROLEUM TECHNOLOGY, 1974, 26 (DEC): : 1365 - 1374
  • [9] DRANCHUK PM, 1974, J CAN PETROL TECHNOL, V13, P12
  • [10] The effect of mixed surfactants on enhancing oil recovery
    El-Batanoney, M
    Abdel-Moghny, T
    Ramzi, M
    [J]. JOURNAL OF SURFACTANTS AND DETERGENTS, 1999, 2 (02) : 201 - 205