Alcohol Ethoxylate Nano Surfactant: Surface Tension and Compatibility with Acidizing Additives
- Abdulrahman Bin Omar (Saudi Aramco) | Nadrah Alawani (Saudi Aramco) | Abdullah Al Moajil (Saudi Aramco) | Sajjad Aldarweesh (Saudi Aramco)
- Document ID
- Offshore Technology Conference
- Offshore Technology Conference, 30 April - 3 May, Houston, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Offshore Technology Conference
- 2.4 Hydraulic Fracturing, 2.6 Acidizing, 2.5.2 Fracturing Materials (Fluids, Proppant), 2 Well completion
- Acid Stimulation, Surfactant, Alcohol ethoxylated, mutual solvent, Nanosurfactant
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- 216 since 2007
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Alcohol ethoxylate-based nanosurfactant was experimentally assessed to be used in HCl acid-based stimulation recipes. The surface tension of the surfactant with different stimulation additives was compared with commonly-used linear and branched alcohol ethoxylate-based surfactants. Nanosurfactant showed the lowest CMC of 2 gpt compared to 3 and 5 gpt for branched and linear alcohol ethoxylate-based surfactants, respectively at 77°F. The Nanosurfactant illustrated the highest performance in lowering the surface tension of water to 17 dynes/cm at 280°F. Spent 20 wt% HCl acid and mutual solvent affected the performance of nanosurfactant by increasing the surface tension at temperatures up to 300°F. Live 20 wt% HCl acid showed insignificant effect on the performance of nanosurfactant. Despite the negative interactions with number of stimulation additives, nanosurfactant showed superior surface tension lowering abilities compared to linear and branched alcohol ethoxylate-based surfactants.
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