The Maness Shale: a comparison of the geomechanical and mineralogical properties within the Lower Eagle Ford Formation, South TexasShow full item record
Title | The Maness Shale: a comparison of the geomechanical and mineralogical properties within the Lower Eagle Ford Formation, South Texas |
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Author | Patterson, Samantha A.,author. |
Date | 2018 |
Genre | Thesis |
Degree | Master of Science |
Abstract | The Maness Shale is a clay-rich mudrock that has been correlated to the basal Lower Eagle Ford in South Texas. Where present, the Maness may prove beneficial, acting as a fracture barrier between hydraulically fractured Eagle Ford wellbores and underlying aquifers. Geomechanical studies demonstrate that the Maness is 34% weaker than the Eagle Ford and 76% weaker than the Buda. XRD analyses found that the samples from the Maness contain an average of 10% more clay than the Eagle Ford. A regression analysis established a 91.7% correlation between Maness thickness and oil/water ratios, which are based on cumulative first year oil and water production, indicating that the Maness may be acting as a fracture barrier in the region. This analysis also found a 50% decrease in oil/water ratios between Maness thicknesses of 5 to 10 ft (1.5 to 3.1 m), suggesting that a minimum of 10 ft is needed for the Maness to effectively act as a fracture barrier. |
Link | https://repository.tcu.edu/handle/116099117/22839 |
Department | Geological Sciences |
Advisor | Denne, Richard |
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- Masters Theses [4174]
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