Browsing OU - Dissertations by Author "Karami, Hamidreza"
Now showing items 1-12 of 12
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Applying machine learning models to diagnose failures in electrical submersible pumps
AlBallam, Shaikha (2022-12-17)Electrical Submersible Pump (ESP) failures are unanticipated but common occurrences in oil and gas wells. It is necessary to detect the onset of failures early and prevent excessive downtime. This study proposes a novel ... -
Development of polymer gel systems for lost circulation treatment and wellbore strengthening
Magzoub, Musaab (2021-05-07)Lost circulation is a frequent problem and a significant contributor to the non-productive time (NPT) in the drilling operation. Field reports and experimental studies have revealed that conventional solutions are doomed ... -
Effects of restrictions and liquid properties on liquid loading in natural gas wells
Alsanea, Maziad (2022-12-08)Liquid loading is one of the main challenges in the later life of a natural gas well. Several methods have been used to unload the gas wells and remedy liquid loading, with various efficiencies. The literature revealed a ... -
EVALUATION OF LINER HANGER SEAL ASSEMBLY AND CEMENT SHEATH AS A DUAL BARRIER SYSTEM: IMPLICATIONS FOR INDUSTRY AND REGULATORS
Ahmed, Shawgi (2020-05-08)Robust dual barrier systems are crucial for well integrity. Regulators and industry have consistently raised the concerns in such systems regarding the testing, qualification, and prediction of leakage pathways and failure ... -
Experimental and numerical evaluation of shape memory polymer for lost circulation treatment in geothermal wells
Mohamed, Abdelmjeed (2022)Lost circulation presents formidable challenges to drilling operations, especially in high-temperature and fractured formations. Lost circulation events increase the nonproductive time (NPT) and the total cost of drilling ... -
Investigation of Hydraulic and Mechanical Cement Integrity: An Advanced Computational Study
Wu, Yuxing (2021)Cement sheath is a significant barrier to maintain the zonal isolation of wells, preventing severe consequences such as kick (or influx) accidents, environmental contaminations, and safety threats. Many previous investigations ... -
Multiscale, multiphysics modeling of subsurface engineering applications
Zapata Arboleda, Yuliana Maria (2020-12)Fluid flow, particle transport, and chemical reactions in porous media play a vital role in various disciplines, including hydrology, medicine, and engineering. In particular, in the petroleum industry, subsurface engineering ... -
Numerical simulations of wellbore cement sheath microannuli leakage in Gulf of Mexico wells
Wise, Jarrett (2021-02-25)The Gulf of Mexico (GoM) is home to more than 50,000 oil and gas wells with approximately 30,000 wells that are plugged and abandoned leading to concerns of oil and gas leakage where currently, little to no monitoring is ... -
Pore-scale Modeling and Multi-scale Characterization of Liquid Transport in Shales
Zheng, Da (2018-12-14)Distinct from conventional reservoirs, shale formations have limited pore connectivity and unique pore spatial-distribution. Consequently, theoretical pore-network models developed for conventional formations are not ... -
Study of multicomponent of hydrocarbon systems with molecular dynamics simulation
Chang, Qiuhao (2022)Molecular Dynamics (MD) simulation is a powerful tool used in various research fields such as petroleum, geoscience, biochemistry, physics, and materials science. The unique merit of MD simulation is that it can investigate ... -
Study towards improving the efficiency of matrix acidizing in oil-bearing carbonate formations
Elsafih, Mohamed Mustafa Elmabruk (2021-08)Matrix acidizing in carbonate formations is a common technique to improve well productivity. Since more than 60% of the world’s reservoir formations are carbonates, enhancing the process of acidizing can have a significant ... -
Thermal performance of sandstone reservoirs for thermal energy storage: an integrated experimental and analytical study
Vivas, Cesar (2023-12)With the global plans of decarbonization in motion, major energy players and large oil and gas (O&G) companies are moving towards increasing energy generation from non-fossil sources. The implementation of renewable energy ...