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Journal Articles

A Study of Dimethyl Ether-Steam Coinjection Using a Large-Scale Physical Model

Hassan Amer, Kai Sheng, Ryosuke Okuno, Alex Filstein, Matthew French, Javier O. Sanchez, Abdullah Al-Gawfi, Petro Nakutnyy
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (12): 7011–7028.
Paper Number: SPE-218077-PA
https://doi.org/10.2118/218077-PA
Published: 11 December 2024
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Includes: Supplementary Content
Proceedings Papers

Chemical and Phase Equilibrium Calculations Applied to Dissolution and Precipitation of Multiple Solid Phases

Oluwafemi P. Oyenowo, Bo Luo, Ryosuke Okuno
Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220808-MS
https://doi.org/10.2118/220808-MS
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View Paper titled, Chemical and Phase Equilibrium Calculations Applied to Dissolution and Precipitation of Multiple Solid Phases
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Journal Articles

Thermodynamic Modeling of Aqueous Nanobubble Dispersion

Sofiane H. Achour, Tesleem Lawal, Kai Sheng, Ryosuke Okuno
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (06): 3204–3222.
Paper Number: SPE-215122-PA
https://doi.org/10.2118/215122-PA
Published: 12 June 2024
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Proceedings Papers

Aqueous Nanobubble Dispersion of CO 2 for Enhanced Oil Recovery – Coreflooding and Huff-n-Puff Experiments

Tesleem Lawal, Hao Wang, Abouzar Mirzaei-Paiaman, Ryosuke Okuno
Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218179-MS
https://doi.org/10.2118/218179-MS
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View Paper titled, Aqueous Nanobubble Dispersion of CO 2 for Enhanced Oil Recovery – Coreflooding and Huff-n-Puff Experiments
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Proceedings Papers

Aqueous Ketone Solution for Wettability Alteration in High-Salinity-High-Temperature Carbonate Reservoirs

Tesleem Lawal, Abouzar Mirzaei-Paiaman, Ryosuke Okuno
Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218246-MS
https://doi.org/10.2118/218246-MS
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View Paper titled, Aqueous Ketone Solution for Wettability Alteration in High-Salinity-High-Temperature Carbonate Reservoirs
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Proceedings Papers

Aqueous Nanobubble Dispersion of CO 2 in Sodium Formate Solution for Enhanced CO 2 Mineralization Using Basaltic Rocks

Hao Wang, Omar A. Carrasco-Jaim, Ryosuke Okuno
Paper presented at the SPE/AAPG/SEG Carbon, Capture, Utilization, and Storage Conference and Exhibition, March 11–13, 2024
Paper Number: SPE-CCUS-2024-4016392
https://doi.org/10.15530/ccus-2024-4016392
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View Paper titled, Aqueous Nanobubble Dispersion of CO 2 in Sodium Formate Solution for Enhanced CO 2 Mineralization Using Basaltic Rocks
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Proceedings Papers

Thermodynamic Modeling of Aqueous Nanobubble Dispersion

Sofiane H. Achour, Kai Sheng, Tesleem Lawal, Ryosuke Okuno
Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215122-MS
https://doi.org/10.2118/215122-MS
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View Paper titled, Thermodynamic Modeling of Aqueous Nanobubble Dispersion
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Proceedings Papers

Geochemical Impact on Rock Wettability in Injection of High-Concentration Formate Solution for Enhanced Geologic Carbon Storage and Oil Recovery

Oluwafemi Precious Oyenowo, Hao Wang, Ryosuke Okuno, Abouzar Mirzaei-Paiaman, Kai Sheng
Paper presented at the SPE International Conference on Oilfield Chemistry, June 28–29, 2023
Paper Number: SPE-213786-MS
https://doi.org/10.2118/213786-MS
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View Paper titled, Geochemical Impact on Rock Wettability in Injection of High-Concentration Formate Solution for Enhanced Geologic Carbon Storage and Oil Recovery
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Proceedings Papers

Advanced Modeling of Diffusion and Convection in Multiphase Compositional Simulation for Tight Porous Media

Sofiane Haythem Achour, Ryosuke Okuno
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212208-MS
https://doi.org/10.2118/212208-MS
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View Paper titled, Advanced Modeling of Diffusion and Convection in Multiphase Compositional Simulation for Tight Porous Media
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Journal Articles

A Comparative Study of the Cubic-Plus-Association Equation of State and a Peng-Robinson Equation of State–Based Solid Model for Asphaltene Simulation in the Wellbore

Fernando M. C. Coelho, Ryosuke Okuno, Kamy Sepehrnoori, Ofodike A. Ezekoye
Journal: SPE Production & Operations
Publisher: Society of Petroleum Engineers (SPE)
SPE Prod & Oper 38 (01): 125–145.
Paper Number: SPE-212293-PA
https://doi.org/10.2118/212293-PA
Published: 08 February 2023
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View article titled, A Comparative Study of the Cubic-Plus-Association Equation of State and a Peng-Robinson Equation of State–Based Solid Model for Asphaltene Simulation in the Wellbore
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Journal Articles

An Electrokinetic Study of Amino Acid and Potential-Determining Ions for Enhanced Waterflooding in Carbonate Reservoirs

Ricardo A. Lara Orozco, Gayan Aruna Abeykoon, Ryosuke Okuno, Larry W. Lake
Journal: SPE Reservoir Evaluation & Engineering
Publisher: Society of Petroleum Engineers (SPE)
SPE Res Eval & Eng 25 (02): 302–318.
Paper Number: SPE-201482-PA
https://doi.org/10.2118/201482-PA
Published: 11 May 2022
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View article titled, An Electrokinetic Study of Amino Acid and Potential-Determining Ions for Enhanced Waterflooding in Carbonate Reservoirs
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Proceedings Papers

A Study of the Impact of Permeability Barriers on Steam-Solvent Coinjection Using a Large-Scale Physical Model

Kai Sheng, Ryosuke Okuno, Abdullah Al-Gawfi, Petro Nakutnyy
Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209453-MS
https://doi.org/10.2118/209453-MS
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View Paper titled, A Study of the Impact of Permeability Barriers on Steam-Solvent Coinjection Using a Large-Scale Physical Model
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Journal Articles

An Experimental Study of Steam-Solvent Coinjection for Bitumen Recovery Using a Large-Scale Physical Model

Kai Sheng, Ryosuke Okuno, Abdullah Al-Gawfi, Petro Nakutnyy, Muhammad Imran, Kazunori Nakagawa
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 27 (01): 381–398.
Paper Number: SPE-205158-PA
https://doi.org/10.2118/205158-PA
Published: 16 February 2022
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View article titled, An Experimental Study of Steam-Solvent Coinjection for Bitumen Recovery Using a Large-Scale Physical Model
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Proceedings Papers

A Proxy Peng-Robinson EOS for Efficient Modeling of Phase Behavior

Mark Zhao, Ryosuke Okuno
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203914-MS
https://doi.org/10.2118/203914-MS
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View Paper titled, A Proxy Peng-Robinson EOS for Efficient Modeling of Phase Behavior
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Proceedings Papers

Aqueous Solution of Ketone For Enhanced Water Imbibition in Shale Reservoirs

Mingyuan Wang, Gayan A. Abeykoon, Francisco J. Argüelles-Vivas, Ryosuke Okuno
Paper presented at the SPE Europec featured at 82nd EAGE Conference and Exhibition, October 18–21, 2021
Paper Number: SPE-205154-MS
https://doi.org/10.2118/205154-MS
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View Paper titled, Aqueous Solution of Ketone For Enhanced Water Imbibition in Shale Reservoirs
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Proceedings Papers

Analytical Solutions for the Injection of Wettability Modifiers in Carbonate Reservoirs Based on a Reduced Surface Complexation Model

Ricardo A. Lara Orozco, Ryosuke Okuno, Larry W. Lake
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206088-MS
https://doi.org/10.2118/206088-MS
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View Paper titled, Analytical Solutions for the Injection of Wettability Modifiers in Carbonate Reservoirs Based on a Reduced Surface Complexation Model
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Proceedings Papers

Glycine for Enhanced Water Imbibition in Carbonate Reservoirs – What is the Role of Amino Group?

Ilgar Baghishov, Gayan A. Abeykoon, Mingyuan Wang, Francisco J. Argüelles Vivas, Ryosuke Okuno
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206294-MS
https://doi.org/10.2118/206294-MS
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View Paper titled, Glycine for Enhanced Water Imbibition in Carbonate Reservoirs – What is the Role of Amino Group?
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Proceedings Papers

Effects of Surfactant Partition Coefficient and Interfacial Tension on Oil Displacement in Low-Tension Polymer Flooding

Mingyan Liu, Kwang Hoon Baek, Fransisco J. Argüelles-Vivas, Gayan A. Abeykoon, Ryosuke Okuno
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206220-MS
https://doi.org/10.2118/206220-MS
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View Paper titled, Effects of Surfactant Partition Coefficient and Interfacial Tension on Oil Displacement in Low-Tension Polymer Flooding
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Proceedings Papers

The Effect of Chemical Partition Behavior on Oil Recovery by Wettability Alteration in Fractured Tight Reservoirs

Tesleem Lawal, Mingyuan Wang, Gayan A. Abeykoon, Francisco J. Argüelles-Vivas, Ryosuke Okuno
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5354-MS
https://doi.org/10.15530/urtec-2021-5354
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View Paper titled, The Effect of Chemical Partition Behavior on Oil Recovery by Wettability Alteration in Fractured Tight Reservoirs
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Journal Articles

An Experimental Study of Steam-Assisted Gravity Drainage

Kai Sheng, Ryosuke Okuno, Muhammad Imran, Tomomi Yamada
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 26 (03): 1515–1534.
Paper Number: SPE-200867-PA
https://doi.org/10.2118/200867-PA
Published: 16 June 2021
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View article titled, An Experimental Study of Steam-Assisted Gravity Drainage
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