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Direct Imaging and Subsequent Modeling of the Cement Microstructure and Integrity of Cement/Casing and Cement/Formation Interfaces
DownloadFall 2020
As a key component of the wellbore barrier system, cement provides zonal isolation and structural support during the entire life of a well. However, even when the cement is properly placed in the well, the zonal isolation may be lost over time. Failure to establish and maintain an effective...
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Fall 2017
Cementitious binders have been widely used to improve the mechanical, hydraulic, and physical properties of soft soils by deep soil mixing and jet grouting in the past 50 years. However, the majority of previous investigations are limited to the stabilization of very soft clays in marine...
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Unraveling the relationship between trip chaining and mode choice using Structural Equation Models
DownloadSpring 2010
Trip chaining and mode choice are two important travel behavior decisions in activity-based travel demand modeling system. The hierarchy of these two decisions influences model’s predictive capability and policy sensitivity. This thesis is aimed at investigating the hierarchical relationship...