Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"zonal isolation"”.
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Investigating the use of different types of sealant materials for cement remedial applications
… the sealant material is critical to improve the zonal isolation of the wells, which would lead to safer operations. The approach of this dissertation is to utilize particles gel that has been used successfully in conformance control application, and epoxy resin systems, that have superior seal …
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Wellbore Microannulus Characterization and Seal Repair: Computational and Lab Scale Modeling
… Characterizing wellbore integrity and providing zonal isolation by repairing these wellbore flaws is of critical importance to the long-term isolation of CO2 and success of CCS. This research aims to characterize the microannulus region of the cement sheath-steel casing interface in terms of its …
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Thermal modeling for calculation of formation temperatures for deep water wells with chemical heat source
… including severe lost circulation and poor zonal isolation. Artificially strengthening the wellbore is of crucial importance in order to achieve successful drilling as well as cementing for deep water wells. Altering the thermal stresses results in increased tangential stresses in the …
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Reactive MgO and Self-healing Microcapsules for Enhanced Well Cement Performance
… in ensuring well integrity by providing adequate zonal isolation, stabilizing the formation, and protecting the casing from corrosion. A majority of well integrity problems originate from oil well cement shrinkage and shrinkage-induced cracking, as well as cracking induced by other external …