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Open AccessArticle

Experimental Investigation of Water Based Colloidal Gas Aphron Fluid Stability

1
Department of Petroleum Engineering, Amirkabir University of Technology, Tehran 15875-4413, Iran
2
Department of Chemical Engineering, Amirkabir University of Technology, Tehran 15875-4413, Iran
3
Engineering Support and Technology Development Company, Tehran 19697-7353, Iran
4
Energy Research Center, Amirkabir University of Technology, Tehran 15875-4413, Iran
*
Author to whom correspondence should be addressed.
Colloids Interfaces 2019, 3(1), 31; https://doi.org/10.3390/colloids3010031
Received: 12 November 2018 / Revised: 21 February 2019 / Accepted: 25 February 2019 / Published: 3 March 2019
Today, the drilling operators use the Colloidal Gas Aphron (CGA) fluids as a part of drilling fluids in their operations to reduce formation damages in low-pressure, mature or depleted reservoirs. In this paper, a Taguchi design of experiment (DOE) has been designed to analyse the effect of salinity, polymer and surfactant types and concentration on the stability of CGA fluids. Poly Anionic Cellulose (PacR) and Xanthan Gum (XG) polymers are employed as viscosifier; Hexadecyl Trimethyl Ammonium Bromide (HTAB) and Sodium Dodecyl Benzene Sulphonate (SDBS) have been also utilized as aphronizer. Moreover, bubble size distributions, rheological and filtration properties of aphronized fluids are investigated. According to the results, the polymer type has the highest effect, whereas the surfactant type has the lowest effect on the stability of CGA drilling fluid. It was also observed that increasing salinity in CGA fluid reduces the stability. Finally, it should be noted that the micro-bubbles generated with HTAB surfactant in an electrolyte system, are more stable than SDBS surfactant. View Full-Text
Keywords: Colloidal Gas Aphron; Taguchi design of experiment; Stability; Rheology; Filtration Colloidal Gas Aphron; Taguchi design of experiment; Stability; Rheology; Filtration
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Hosseini-Kaldozakh, S.A.; Khamehchi, E.; Dabir, B.; Alizadeh, A.; Mansoori, Z. Experimental Investigation of Water Based Colloidal Gas Aphron Fluid Stability. Colloids Interfaces 2019, 3, 31.

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