Publication Type
Journal Article
Publication Date (Issue Year)
2025
Journal Name
Journal of GeoEnergy
Abstract
The world is running out of time to be on target for the Paris Agreement to maintain an average global temperature rise of 1.5°C.Carbon capture and storage (CCS) can win the race to anthropogenic gas stabilisation. Characterisation of geological formations isfundamental to ascertain the ability to keep injected carbon in perpetuity without posing a risk to the environment. This studyfocuses on the characterisation of the mineralogy, petrophysical, petrographic properties and micromorphological data of reser-voirs using core samples from the reservoirs in the Niger Delta, Nigeria. A systematic set of specialised equipment such as XRD,X-ray fluorescence (XRF) and SEM-EDS was implored to understand the preliminary characterisation of selected reservoirs beforecarbon dioxide injection. Porosity and permeability were measured using a helium porosimeter to complement the mineralogicalcomposition and morphology. The petrographic and mineralogical characteristics of the core samples provide crucial insights intopotential geochemical reactions. Quartz, orthoclase and albite were found to be dominant in all the sampled depo belts withchlorite and garnet being the trace minerals. The sampled depo belts recorded an average porosity of 10% to 30% with permeabilityaveraging 130–300 mD, which surpass the cautionary indicator limits. The findings indicated a positive potential for CCS in theNiger Delta with suitable mineralogical and petrophysical properties. The positive findings of this research pave the way for pilottesting with the physical injection of carbon dioxide. They also set a pathway for enacting and implementing carbon dioxidemitigation guidelines controlling CCS installations by the Nigerian Upstream Petroleum Regulatory Commission (NUPRC)
Keywords
carbon capture and storage, carbon dioxide, depleted reservoirs, global warming, mineralogical, petrophysica
Rsif Scholar Name
Itai Mutadza
Thematic Area
Energy including Renewables
Africa Host University (AHU)
University of Port Harcourt (UNIPORT), Nigeria
Recommended Citation
Mutadza, I., Ikiensikimama, S. S., & Joel, O. F. (2025). Preliminary Assessment of the Reservoir Rock in the NigerDelta for Carbon Capture and Storage in Depleted Reservoirs. Journal of GeoEnergy https://doi.org/doi.org/10.1155/jge5/4230897