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Onnie Ridaliani, Onnie
Universitas Trisakti
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Journal : Journal of Earth Energy Science, Engineering, and Technology

 1 
Laboratory Study of Enhanced Oil Recovery with Used Palm Oil Surfactant Injection Puri Wijayanti; Nandito Davy; Onnie Ridaliani; Pauhesti; Samsol; Widia Yanti; Tia Agusta; Rizka Nada Setyani
Journal of Earth Energy Science, Engineering, and Technology Vol. 6 No. 1 (2023): JEESET VOL. 6 NO. 1 2023
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jeeset.v6i1.13640

Abstract

Currently the waste generated from public consumption in Indonesia is very high. One such waste is used palm oil from households and food companies. Utilization of this waste in this research is by recycling waste oil into surfactants which will be used in the Enhanced Oil Recovery (EOR) process. The surfactant concentrations used were 1.3%, 1.5%, 2%, 2.2% and 2.5%. The research began with refining used cooking oil with banana peels for 24 hours. In order to make surfactants, the oil is mixed with KOH and distilled water. Additionaly, brine was made with a salinity of 15,000 ppm. With the interfacial tension test, a solution with an optimum surfactant concentration of 2.2% was obtained. The core flooding test was carried out using waterflooding followed by surfactant flooding at a temperature of 70 oC. From the test results obtained an incremental oil recovery factor of 8.57% and a total oil recovery factor of 47.43%.
Modeling and Prediction of Kappaphycus alvarezii Viscosity Using Artificial Neural Network and Adaptive Neuro-Fuzzy Inference System Fathaddin, Muhammad Taufiq; Ridaliani, Onnie; Rakhmanto, Pri Agung; Mardiana, Dwi Atty; Septianingrum, Wydhea Ayu; Irawan, Sonny; Abdillah, Ridho
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 3 (2025): JEESET VOL. 8 NO. 3 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/fh90e382

Abstract

This study examines the viscosity behavior of Kappaphycus alvarezii polymer solutions enhanced with TiO2 nanoparticles under varying concentrations, salinity, and temperature. Predictive models were developed using Artificial Neural Network (ANN) and Adaptive Neuro-Fuzzy Inference System (ANFIS) approaches. The experimental work involved preparing Kappaphycus alvarezii solutions with polymer concentrations ranging from 2,000 to 6,000 ppm and TiO2 nanoparticle concentrations from 2,000 to 4,000 ppm at salinities of 6,000–30,000 ppm and temperatures between 30 °C and 80 °C. Results showed that increasing Kappaphycus alvarezii concentration enhanced viscosity by 1.04–21.12%, while TiO2 nanoparticles improved viscosity stability, especially under high-salinity conditions. In contrast, higher salinity and temperature reduced viscosity due to ionic screening and increased molecular motion, although a slight rise was observed at 30,000 ppm salinity. The optimized ANN model (18 neurons, one hidden layer) achieved a superior correlation coefficient (r = 0.9980) compared to ANFIS (r = 0.8769), confirming higher predictive accuracy. These findings demonstrate the potential of Kappaphycus alvarezii–TiO2 nanofluids as sustainable viscosity modifiers for enhanced oil recovery (EOR) and verify the reliability of ANN and ANFIS models in predicting viscosity under complex multivariable interactions.
Co-Authors Abdillah, Ridho Andry Prima Apriandi Rizkina rangga Wastu Arinda Ristawati Asri Nugrahanti Bayu Hamza Beta Resqy Avianti Cahaya Rosyidan Daddy Sutansyah Danaparamita Kusumawardhani Dhio Defitra Thesly Diah Utami Safitri Doddy Doddy Doddy, Doddy Dorothea Dyah Puspita Dyah Rini Ratnaningsih Eka Rizky Esaim Mustafa Abrahim Omar Fahman Abdullah Farhan Ghanima Yasmaniar Harin Widiatni Harin Widiatni Havidh Pramadika Kasmuning, Sugiatmo Kesit Bayu Kumoro Aji Kusumawardhani, Danaparamita Lestari Lestari Lia Mega Lilian Anggela Listiana Satiawati Listiana Satiawati, Listiana M. Taufiq Fathaddin M. Taufiq Fathaddin, M. Taufiq Mardiana, Dwi Atty Mardiana, Dwi Atty Marmora Titi Malinda Mega, Lia MG Sri Wahyuni, MG Sri Mixsindo Korra Herdyanti Muhammad Burhannudinnur Muhammad Taufiq Fathaddin, Muhammad Taufiq Mulia Ginting Mulia Ginting, Mulia Nandito Davy Nandito Davy Nur Suhascaryo Oetomo, Hari Karyadi Omar, Esaim Mustafa Abrahim Pantjanita Novi Hartami Pauhesti Pauhesti Pri Agung Rakhmanto Pri Agung Rakhmanto puri wijayanti Puri Wijayanti, Puri Qashidi, Rafdi Arsyanto Raisha Ummaria Rakhmanto, Pri Agung Ratnayu Sitaresmi Ratnayu Sitaresmi Ratnayu Sitaresmi, Ratnayu Ridho Abdillah Rini Setiati Ririn Yulianti Ristawati, Arinda Rizka Nada Setyani Rizki Akbar Rizki Akbar, Rizki Rizky, Eka Samsol Samsol Septianingrum, Wydhea Ayu Shabrina Sri Riswati Sigit Rahmawan Sonny Irawan Sonny Irawan Sonny Irawan Sugiatmo Kasmuning Suryo Prakoso, Suryo Taufan Marhaendrajana, Taufan Thesly, Dhio Defitra Tia Agusta Tia Agusta Untung Sumotarto Widia Yanti Widia Yanti Widiatni, Harin Wirianta, Hananya Wydhea Ayu Septianingrum Yarra Sutadiwiria Yogie Seto S. W Zakia Nurfajrin Darajat