Adsorption of anionic surfactants in limestone medium during oil recovery

Date

2004-07-16

Author

Canbolat, S
Baggi, S

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Foam-forming surfactant performance was evaluated by several experimental methods (interfacial tension, foam stability, corefloods) using commercial surfactants. There is considerable interest in the use of foam-forming surfactants for mobility control in water flood. To provide effective mobility control, the injected surfactant must propagate from the injection well toward the production well. One of the important parameters affecting propagation of foam-forming surfactant through the reservoir is the retention of surfactant due to its adsorption on reservoir rock. The determination of the adsorption of foam-forming surfactants in limestone reservoirs is important for the residual oil recovery efficiency. Adsorption measurements, recovery efficiencies, and surfactant and alkaline flooding experiments carried out with the representative of the selected surfactants alkaline solutions, linear alkyl benzene sulphonic acid (LABSA), sodium lauryl ether sulfate (SLES), and NaOH in a limestone medium. These surfactants were selected with respect to their foaming ability. Calibration curves formed by pH measurements were used to determine the correct adsorption amount of the used surfactants and recovery efficiency of these surfactants compared with base waterflooding. The results showed that LABSA adsorbed more than SLES in limestone reservoirs. The recovery efficiency of SLES was higher than the recovery efficiency of LABSA, and they decreased the recovery efficiency with respect to only the water injection case.

Subject Keywords

Fuel Technology, Energy Engineering and Power Technology, General Chemical Engineering

URI

https://hdl.handle.net/11511/64701

Journal

ENERGY SOURCES

DOI

https://doi.org/10.1080/00908310490465911

Collections

Department of Petroleum and Natural Gas Engineering, Article

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Citation Formats

S. Canbolat and S. Baggi, “Adsorption of anionic surfactants in limestone medium during oil recovery,” ENERGY SOURCES, pp. 869–877, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64701.