Engineering topics
Mehana, Mohamed (ORCID:0000000324722879)
Publications and source records attributed to Mehana, Mohamed (ORCID:0000000324722879).
Deep Learning-Based quantifications of methane emissions with field applications
Not Available
Economic assessment of clean hydrogen production from fossil fuels in the intermountain-west region, USA
Not Available
Efficient prediction of hydrogen storage performance in depleted gas reservoirs using machine learning
Not Available
Molecular simulations of hydrogen diffusion in underground porous media: Implications for storage under varying pressure, confinement, and surface chemistry conditions
Not Available
Driving mechanisms of quartz wettability alteration under in-situ H2 geo-storage conditions: Role of organic ligands and surface morphology
Not Available
Flaring volumes in the intermountain west region: A geospatial analysis of satellite and operator-reported data with viable mitigation strategies
Not Available
Molecular-Scale Considerations of Enhanced Oil Recovery in Shale
With only less than 10% recovery, the primary production of hydrocarbon from shale reservoirs has redefined the energy equation in the world. Similar to conventional reservoirs, Enhanced Oil Recovery (EOR) techniques could be devised to enhance the current recovery factors. However, shale reservoirs possess unique characteristics that significantly affect the fluid properties. Therefore, we are adopting a molecular simulation approach that is well-suited to account for these effects to evaluate the performance of three different gases, methane, carbon dioxide and nitrogen, to recover the hydrocarbons from rough pore surfaces. Our hydrocarbon systems consists of either a single component (decane) or more than one component (decane and pentane). We simulated cases where concurrent and countercurrent displacement is studied. For concurrent displacement (injected fluids displace hydrocarbons towards the production region), we found that nitrogen and methane yielded similar recovery; however nitrogen exhibited a faster breakthrough. On the other hand, carbon dioxide was more effective in extracting the hydrocarbons when sufficient pressure was maintained. For countercurrent displacement (gases are injected and hydrocarbons are produced from the same direction), methane was found to be more effective, followed by carbon dioxide and nitrogen. In all cases, confinement reduced the recovery factor of all gases. This work provides insights to devise strategies to improve the current recovery factors observed in shale reservoirs.