Chioma Onwumelu
Experienced Geoscientist skilled in advanced analytical tools & techniques, leading interdisciplinary teams, Python scripting, GIS applications, petroleum systems, and CO2 storage research. Ensures data accuracy for informed decision-making.
Research Interests
About
Publications
Geochemical, petrographic and petrophysical characterization of the Lower Bakken Shale, Divide County, North Dakota
International Journal of Coal Geology / May 01, 2020
Adeyilola, A., Nordeng, S., Onwumelu, C., Nwachukwu, F., & Gentzis, T. (2020). Geochemical, petrographic and petrophysical characterization of the Lower Bakken Shale, Divide County, North Dakota. International Journal of Coal Geology, 224, 103477. https://doi.org/10.1016/j.coal.2020.103477
Rock characterization using nuclear magnetic resonance and scanning electron microscope: A laboratory study of the Bakken Formation
SEG Technical Program Expanded Abstracts 2019 / Aug 10, 2019
Onwumelu, C., Nordeng, S., & Adeyilola, A. (2019, August 10). Rock characterization using nuclear magnetic resonance and scanning electron microscope: A laboratory study of the Bakken Formation. SEG Technical Program Expanded Abstracts 2019. https://doi.org/10.1190/segam2019-3216798.1
Creating Value for the High-Saline Bakken Produced Water by Optimizing its Viscoelastic Properties and Proppant Carrying Tendency with High-Viscosity Friction Reducers
Day 2 Wed, April 21, 2021 / Apr 10, 2021
Tomomewo, O. S., Mann, M. D., Ellafi, A., Jabbari, H., Tang, C., Ba Geri, M., Kolawole, O., Adebisi, A., Ibikunle, O., Alamooti, M., & Iroko, A. (2021, April 10). Creating Value for the High-Saline Bakken Produced Water by Optimizing its Viscoelastic Properties and Proppant Carrying Tendency with High-Viscosity Friction Reducers. Day 2 Wed, April 21, 2021. https://doi.org/10.2118/200809-ms
Rock characterization using nuclear magnetic resonance and scanning electron microscope: A laboratory study of the Bakken Formation
SEG Technical Program Expanded Abstracts 2019 / Aug 10, 2019
Onwumelu, C., Nordeng, S., & Adeyilola, A. (2019, August 10). Rock characterization using nuclear magnetic resonance and scanning electron microscope: A laboratory study of the Bakken Formation. SEG Technical Program Expanded Abstracts 2019. https://doi.org/10.1190/segam2019-3216798.1
Combining Source Rock Kinetics and Vitrinite Reflectance in Source Rock Evaluation of the Bakken Formation, Williston Basin, USA
ACS Omega / Apr 13, 2021
Onwumelu, C., Nordeng, S. H., Nwachukwu, F. C., & Adeyilola, A. (2021). Combining Source Rock Kinetics and Vitrinite Reflectance in Source Rock Evaluation of the Bakken Formation, Williston Basin, USA. ACS Omega, 6(16), 10679–10690. https://doi.org/10.1021/acsomega.1c00048
Pore Structure Analysis from CO2 Saturation using Gas Adsorption
Proceedings of the 8th Unconventional Resources Technology Conference / Jan 01, 2020
Ozotta, O., Ostadhassan, M., Liu, K., Lee, H., & Onwumelu, C. (2020). Pore Structure Analysis from CO2 Saturation using Gas Adsorption. Proceedings of the 8th Unconventional Resources Technology Conference. https://doi.org/10.15530/urtec-2020-3116
Maturation-induced modification of organic matter in shales: Implications for geological CO2 storage
Fuel Communications / Jun 01, 2021
Onwumelu, C., Kolawole, O., & Nordeng, S. (2021). Maturation-induced modification of organic matter in shales: Implications for geological CO2 storage. Fuel Communications, 7, 100009. https://doi.org/10.1016/j.jfueco.2021.100009
Optimal field development and production design for unconventional reservoirs: A case study from Central Sub-Basin, Permian Basin, new Mexico
Petroleum Research / Mar 01, 2021
Davis, A., Kolawole, O., Watson, M., & Onwumelu, C. (2021). Optimal field development and production design for unconventional reservoirs: A case study from Central Sub-Basin, Permian Basin, new Mexico. Petroleum Research, 6(1), 66–76. https://doi.org/10.1016/j.ptlrs.2020.10.003
Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
Journal of Visualized Experiments / Dec 02, 2022
Enrriques, A. E., Howard, S., Timsina, R., Khadka, N. K., Hoover, A. N., Ray, A. E., Ding, L., Onwumelu, C., Nordeng, S., Mainali, L., Uzer, G., & Davis, P. H. (2022). Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid. Journal of Visualized Experiments, 190. https://doi.org/10.3791/64497
COMPENSATION EFFECT IN SOURCE ROCK KINETICS: INFLUENCE OF BITUMEN FORMATION
Geological Society of America Abstracts with Programs / Jan 01, 2021
Onwumelu, C., Nordeng, S., Bouchakour, I., & Kolawole, O. (2021). COMPENSATION EFFECT IN SOURCE ROCK KINETICS: INFLUENCE OF BITUMEN FORMATION. Geological Society of America Abstracts with Programs. https://doi.org/10.1130/abs/2021am-371229
Characterization of Three Forks Formation Reservoir Lithofacies in the Williston Basin, North Dakota
Proceedings of the 8th Unconventional Resources Technology Conference / Jan 01, 2020
Adeyilola, A., Nordeng, S., Onwumelu, C., & Tomomewo, O. (2020). Characterization of Three Forks Formation Reservoir Lithofacies in the Williston Basin, North Dakota. Proceedings of the 8th Unconventional Resources Technology Conference. https://doi.org/10.15530/urtec-2020-3237
Mandaree, North Dakota: A case study on oil and gas well conversion to geothermal district heating systems for rural communities
Utilization of Thermal Potential of Abandoned Wells / Jan 01, 2022
Eagle-Bluestone, J., Alamooti, M., Namie, S., Porlles, J., Ngobidi, N., Fry, N., Villante, M., Onwumelu, C., Obinwa, O., & Gosnold, W. (2022). Mandaree, North Dakota: A case study on oil and gas well conversion to geothermal district heating systems for rural communities. In Utilization of Thermal Potential of Abandoned Wells (pp. 341–371). Elsevier. https://doi.org/10.1016/b978-0-323-90616-6.00017-8
ESTIMATION OF ANISOTROPY OF THE BAKKEN SHALE FROM ULTRASONIC VELOCITY MEASUREMENTS
Geological Society of America Abstracts with Programs / Jan 01, 2021
Bouchakour, I., Onwumelu, C., & Nordeng, S. (2021). ESTIMATION OF ANISOTROPY OF THE BAKKEN SHALE FROM ULTRASONIC VELOCITY MEASUREMENTS. Geological Society of America Abstracts with Programs. https://doi.org/10.1130/abs/2021am-371243
Student Zone
The Leading Edge / Jan 01, 2021
Mwanzia, D. K., Zowa, P., Achoki, D., Ogochukwu, O., Onwumelu, C., & Mwangi, A. H. (2021). Student Zone: Lessons from the African Young Professionals and Students Geoscience Week. The Leading Edge, 40(1), 74–75. https://doi.org/10.1190/tle40010074.1
GEOCHEMICAL AND PETROPHYSICAL CHARACTERIZATION OF THE BAKKEN SHALE IN MOUNTRAIL COUNTY, NORTH DAKOTA
Geological Society of America Abstracts with Programs / Jan 01, 2019
Onwumelu, C., Nordeng, S., Nwachukwu, F., & Adeyilola, A. (2019). GEOCHEMICAL AND PETROPHYSICAL CHARACTERIZATION OF THE BAKKEN SHALE IN MOUNTRAIL COUNTY, NORTH DAKOTA. Geological Society of America Abstracts with Programs. https://doi.org/10.1130/abs/2019am-338334
Assessing the impact of thermal maturation on the evolution of organic chemistry of Bakken Shale: Insights into oil generation
International Journal of Coal Geology / Dec 01, 2023
Onwumelu, C., & Nordeng, S. H. (2023). Assessing the impact of thermal maturation on the evolution of organic chemistry of Bakken Shale: Insights into oil generation. International Journal of Coal Geology, 280, 104388. https://doi.org/10.1016/j.coal.2023.104388
CO2‐Induced alterations due to thermal maturation in shale: Implications for CO2 utilization and storage
Greenhouse Gases: Science and Technology / Sep 06, 2023
Onwumelu, C., Kolawole, O., Bouchakour, I., Ozotta, O., Nordeng, S., & Alamooti, M. (2023). CO2‐Induced alterations due to thermal maturation in shale: Implications for CO2 utilization and storage. Greenhouse Gases: Science and Technology, 13(6), 797–813. Portico. https://doi.org/10.1002/ghg.2243
EXPERIMENTAL INVESTIGATION OF MATURATION PROCESSES AND ITS RESULTANT IMPACT ON ORGANIC MATTER
Geological Society of America Abstracts with Programs / Jan 01, 2020
Onwumelu, C., & Nordeng, S. (2020). EXPERIMENTAL INVESTIGATION OF MATURATION PROCESSES AND ITS RESULTANT IMPACT ON ORGANIC MATTER. Geological Society of America Abstracts with Programs. https://doi.org/10.1130/abs/2020am-353815
Strong Ground-Motion Measurements during the 2003 Bam, Iran, Earthquake
Earthquake Spectra / Dec 01, 2005
Zaré, M., & Hamzehloo, H. (2005). Strong Ground-Motion Measurements during the 2003 Bam, Iran, Earthquake. Earthquake Spectra, 21(1_suppl), 165–179. https://doi.org/10.1193/1.2098307
Identification and preliminary evaluation of source rocks within the Mississippian Madison Group: Williston Basin, North America
Second International Meeting for Applied Geoscience & Energy / Aug 15, 2022
Nesheim, T. O., Nordeng, S. H., & Onwumelu, C. J. (2022, August 15). Identification and preliminary evaluation of source rocks within the Mississippian Madison Group: Williston Basin, North America. Second International Meeting for Applied Geoscience & Energy. https://doi.org/10.1190/image2022-3748237.1
Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud
Petroleum Research / Jun 01, 2023
Agi, A., Oseh, J. O., Gbadamosi, A., Fung, C. K., Junin, R., & Jaafar, M. Z. (2023). Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud. Petroleum Research, 8(2), 256–269. https://doi.org/10.1016/j.ptlrs.2022.07.005
Integrated Assessment of Interaction Between Supercritical CO2 and Shale During Thermal Maturation
All Days / Jun 26, 2022
Onwumelu, C., Kolawole, O., Bouchakour, I., & Ozotta, O. (2022, June 26). Integrated Assessment of Interaction Between Supercritical CO2 and Shale During Thermal Maturation. All Days. https://doi.org/10.56952/arma-2022-0082
Preliminary identification and evaluation of petroleum source beds within the Mississippian Madison Group: A step toward redefining the Madison petroleum system of the Williston Basin
Mountain Geologist / Nov 01, 2022
Nesheim, T. O., & Onwumelu, C. J. (2022). Preliminary identification and evaluation of petroleum source beds within the Mississippian Madison Group: A step toward redefining the Madison petroleum system of the Williston Basin. Mountain Geologist, 59(4), 315–340. https://doi.org/10.31582/rmag.mg.59.4.315
Using controlled-source electromagnetic (CSEM) for CO2 storage monitoring in the North Dakota CarbonSAFE project
First International Meeting for Applied Geoscience & Energy Expanded Abstracts / Sep 01, 2021
Barajas-Olalde, C., Davydycheva, S., Hanstein, T., Laudal, D., Martinez, Y., MacLennan, K., Mikula, S., Adams, D. C., Klapperich, R. J., Peck, W. D., & Strack, K. (2021, September 1). Using controlled-source electromagnetic (CSEM) for CO2 storage monitoring in the North Dakota CarbonSAFE project. First International Meeting for Applied Geoscience & Energy Expanded Abstracts. https://doi.org/10.1190/segam2021-3585379.1
Controls on Thermal Maturation – Insights from Artificial Maturation of Organic Rich Shales
30th International Meeting on Organic Geochemistry (IMOG 2021) / Jan 01, 2021
Onwumelu, C., Nordeng, S. H., & Muscio, G. P. (2021). Controls on Thermal Maturation – Insights from Artificial Maturation of Organic Rich Shales. 30th International Meeting on Organic Geochemistry (IMOG 2021). https://doi.org/10.3997/2214-4609.202134357
OIL GENERATION RATE PREDICTION USING ARRHENIUS EQUATION FOR BAKKEN FORMATION
Geological Society of America Abstracts with Programs / Jan 01, 2017
Onwumelu, C. (2017). OIL GENERATION RATE PREDICTION USING ARRHENIUS EQUATION FOR BAKKEN FORMATION. Geological Society of America Abstracts with Programs. https://doi.org/10.1130/abs/2017am-295081
Pore Characterization of Bakken Shales (Mississippian-Devonian) in the Williston Basin
2019 AAPG Annual Convention and Exhibition / Jan 01, 2019
Onwumelu, C., & Nordeng, S. (2019). Pore Characterization of Bakken Shales (Mississippian-Devonian) in the Williston Basin. 2019 AAPG Annual Convention and Exhibition. https://doi.org/10.1306/11242onwumelu2019
Pore Characterization of Bakken Shales (Mississippian-Devonian) in the Williston Basin
2019 AAPG Annual Convention and Exhibition / Jan 01, 2019
Onwumelu, C., & Nordeng, S. (2019). Pore Characterization of Bakken Shales (Mississippian-Devonian) in the Williston Basin. 2019 AAPG Annual Convention and Exhibition. https://doi.org/10.1306/11242onwumelu2019
Education
University of North Dakota
PhD, Geology and Geological Engineering
University of North Dakota
Masters, Geology / December, 2017
Experience
University of North Dakota
Research and Data Geologist / August, 2023 — Present
Chevron Technical Center
Earth Scientist / May, 2023 — August, 2023
Energy & Environmental Research Center
Assistant Research Scientist / September, 2019 — May, 2023
Neset Consulting LLC
Wellsite Geologist / May, 2019 — September, 2019
North Dakota Geological Survey
Geological Data and Core Lab Technician / January, 2016 — May, 2019
Links & Social Media
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