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Mitigating Abandoned Well Hazards: How NETL is Locating Legacy Wells
Presented by NETL at SGGC Event: Abandoned Oil and Gas Well Issues and Policies, 10/18
Geothermal well testing pressure prediction by using a hybrid transformer model system: FORGE well use case
Geothermal has huge potential to become an indispensable component in achieving the goal of sustainable energy economy, given its capability to provide consistent baseload power to the electric grid. Injection tests are crucial in geothermal energy system as they naturally help to evaluate reservoir properties, understand fluid flow and even enhance reservoir performance. In this research, we developed a hybrid model system that integrates machine learning (ML) regression, a physics-based mathematical model, and transformer deep learning. Trained and validated using FORGE injection test dataset, this system can forecast the pressure variations both upward and downward over time. The pressure prediction achieved prediction accuracy within 3-6% variance of true pressure values. The system can significantly save time and reduce costs by testing only a few cycles and then using model predictions for further analysis, instead of conducting additional real injection cycle tests. The developed model system also holds promise for designing injection test processes and maintaining well production in geothermal energy. Presented at the IMAGE ‘25 Conference led by Shell.
Pahute Mesa Well Development and Testing Analyses for Wells ER-EC-12 and ER-EC-13, Nevada National Security Site, Nye County, Nevada, Revision 0
The broad purpose of ER-EC-12 and ER-EC-13 is to determine (1) the extent of radionuclide (RN)-contaminated groundwater, (2) the geologic formations, (3) groundwater geochemistry as an indicator of age and origin, and (4) the water-bearing properties and hydraulic conditions that influence RN migration.
Electrokinetic nanoparticle injection for remediating leaks in oil well cement
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Well-to-wheel analysis of direct and indirect use of natural gas in passenger vehicles
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Effect of low-velocity non-Darcy flow on well production performance in shale and tight oil reservoirs
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Steam blowouts in California Oil and Gas District 4: Comparison of the roles of initial defects versus well aging and implications for well blowouts in geologic carbon storage projects
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The effect of introducing nanoparticles on the fracture toughness of well cement paste
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Monitoring well integrity at the Cranfield field phase III CO2 storage project
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Qualitative risk assessment of legacy wells based on publicly available data for class VI well permit applications—Illinois basin case study
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