| Investigation of stabilized foam by functionalized CNT nanoparticles and CTAB surfactant in the presence of divalent salts |
| Paper ID : 1309-UFGNSM-FULL |
| Authors: |
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Azad Karami1, Siavash Riahi2, zahra fakhroueian *3 1Unit 108,Kooye Daneshgah,North Karegar Street,North Amirabad ,Tehran,Iran 2institute of Petroleum engineering, university of Tehran, Tehran , Iran 3P.O. box:11155-4563, Tehran, Iran. |
| Abstract: |
| One of the new main concerns in application of foam for enhanced oil recovery (EOR) is using the energetic nanoparticles containing a lot of porosities and investigation of the influence of salts on the foam stability. This paper reports a systematic laboratory study of the foam ability and foam stability in the presence of divalent slats such as Na2SO4, CaCl2 and MgCl2 along with CTAB surfactant in the water-based solution. In addition, we also considered this experiment in the presence and absence of nanoparticle fluids in this work. Functionalized multiwalled carbon nanotubes (F-CNT) by carboxylic acid (-COOH) was used as new nanoparticles in the production of eco-friendly foaming in EOR process. There are two experiments carried out which are Ross-Miles (Static Experiment) and inject nitrogen gas at different flow rates through the surfactant solution (Dynamic Experiment). Static experiments show that optimum salinity for Na2SO4, CaCl2 and MgCl2 are 0.1, 2 and 2% wt respectively. Whereas in the presence of F-CNT nanoparticles, foam stability increases with concentrations from 0.001 to 0.1 %wt. At 0.001 %wt of nanoparticles, foam life initially dominated by surfactant and then controlled by nanoparticle’s stability. At 0.1 %wt of nanoparticles, foam life initially depended on both nanoparticles and also 0.25 CMC surfactant. Dynamic experiments confirm static data for optimum salinity for three used salts. |
| Keywords: |
| Foam, functionalized carbon nanotubes, dynamic and static experiment, salinity, EOR process, surface modification, foam ability, foam stability |
| Status : Paper Accepted (Poster Presentation) |
