EXPERIMENTAL STUDY : Chemical Synergism in Concocting Surfactant Formulation for Low Salinity Reservoir

Widyaningsih, Ratna and Efriza, Ivan (2015) EXPERIMENTAL STUDY : Chemical Synergism in Concocting Surfactant Formulation for Low Salinity Reservoir. In: ********, 18-19 November 2015, Yogyakarta.

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Abstract Chemical EOR by using surfactant needs to notice about optimum salinity. The optimum salinity is when the volume of water in microemulsion is equal to volume of oil in microemulsion (James J. Sheng,2010). This type of microemulsion is named Type III by Winsor. The type of microemulsion will become a representative of the microemulsion was formed in the reservoir as we designed in the surfactant injection. Chemical formulation was conducted to get the proper chemical recipe for a certain reservoir. This experiment was conducted to observe each chemical effect to optimum salinity. This experiment was implemented by using tube test which was filled by the sample of dead oil of a target layer, artificial brine with desired salinity, and surfactant solution with a certain ratio. Surfactant were used are LAS and DOSS. Both of them are anionic surfactant. Comparing salinity scan of LAS and DOSS only, reducing surfactant concentration and using different concentration of alkali are steps to achieved the experiment’s goal. That is giving the guidance to reach the desired optimum salinity for EOR design. As the result, DOSS has lower HLB than LAS that gave lower optimum salinity. Reducing optimum salinity could be achieved by using or mixing with low HLB surfactant, adding alkali, and reducing surfactant concentration. Keyword : surfactant, optimum salinity, chemical injection, EOR.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Ratna Widyaningsih
Date Deposited: 11 Sep 2017 04:11
Last Modified: 11 Sep 2017 04:11
URI: http://eprints.upnyk.ac.id/id/eprint/12098

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