Surfactant-silica nanoparticle stabilized N2-foam flooding: A mechanistic study on the effect of surfactant type and temperature
| Autor: | Zeinab Derikvand, Amin Rezaei, Mohammadreza Imanivarnosfaderani, Rafat Parsaei |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Chemistry
Linear alkylbenzene Aqueous two-phase system Nanoparticle Foaming agent 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound Chemical engineering Pulmonary surfactant Bromide Phase (matter) Materials Chemistry Enhanced oil recovery Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 325:115091 |
| ISSN: | 0167-7322 |
| Popis: | The application of nitrogen foam for enhanced oil recovery (EOR) purposes has grabbed the attention of many researchers. With this in view, the main objective of this paper is to design a promising foaming agent by evaluating the influence of silica (SiO2) nanoparticles in combination with three different surfactant-stabilized N2-foams at various salinities and temperatures. Therefore, precise experiments were conducted to investigate the stability of produced foam in the presence of cocamido propyl betaine (CAPB), linear alkylbenzene sulphonic acid (LABSA), and cetyltrimethylammonium bromide (CTAB) as amphoteric, anionic, and cationic surfactants, respectively, and N2 as the gaseous phase. Firstly, foam stability tests were performed, and the results revealed that using the CAPB solution as the aqueous phase for N2-foam generation leads to higher foam stability compared to the LABSA and CTAB surfactants. Secondly, the effects of SiO2 nanoparticles and NaCl on the stability of the generated foams were investigated through the foam half-life time measurements. The outcomes demonstrated that a combination of CAPB (0.05 wt%) + SiO2 (0.1 wt%) + NaCl (5.0 wt%) could form almost 2.28 and 3.15 times more stable foams, as compared to the similar conditions in the presence of CTAB and LABSA surfactants, respectively. Investigations on the effects of temperature on foam revealed that the superiority of the CAPB in generating more stable foams (compared to LABSA and CTAB) continues to 50 °C, and then, as the temperature increases to 70 °C, CTAB surfactant surpasses the CAPB and LABSA surfactants in stabilizing the N2-foams. Furthermore, bulk foam stability tests in the presence of oil was conducted and the results showed that the CAPB surfactant -with the lowest hydrophilic-lipophilic balance (HLB)- was more damaged, as compared to the other used surfactants. The results of foam flooding experiments into three sister carbonate core samples showed an increase of 28.6, 32.1, and 41.0% in ultimate oil recovery by using LABSA, CTAB, and CAPB in combination with SiO2 as the aqueous phase. |
| Databáze: | OpenAIRE |
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