Water alternating gas (WAG) injection is widely applied in CO2 EOR to improve sweep efficiency and mobility control, yet forecasted WAG performance is often dominated by uncertainty in relative permeability, three-phase behavior, and cycle hysteresis. This study isolates the impact of relative permeability and wettab...
O. Ejehu, Z. Iyiola, T. Ogunkunle et al.· SPE Nigeria Annual Internati...· 0 citations
The oil and gas sector is responsible for approximately 5.1 Gt CO2eq of direct operational emissions annually, representing roughly 15% of global energy-related greenhouse gas emissions, yet faces an accelerating mandate to decarbonize while sustaining global energy supply. This paper presents a systematic review of...
Z. Iyiola, O. Ejehu, M. Ezeh et al.· SPE Nigeria Annual Internati...· 0 citations
Accurate prediction of CO2 solubility in formation brines is central to carbon storage design because dissolution trapping reduces CO2 mobility and supports long term containment. Yet, solubility data and correlations are often limited in coverage, uncertain at high salinity and pressure, and can be unreliable when e...
O. Ejehu, A. J. Whitcomb, M. Hunter et al.· SPE Nigeria Annual Internati...· 0 citations
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