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 6 of 6 for “"tensile fractures."”.
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Gas-generated fractures and methane venting in a deepwater Arctic setting
… generated by hydrate dissociation can generate tensile fractures and enhance transport of gas to the seafloor. The major results of this analysis are as follows. (1) The location of the base of the hydrate stability zone is more sensitive to temperature compared to pressure. My result shows that …
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Structural and stratigraphic controls on fracture distribution within sand bodies of the Upper Iles and Lower Williams Fork formations, Mamm Creek and Divide Creek fields, Piceance Basin, Colorado
… of hydrocarbons requires the presence of fractures, either natural fractures or induced fractures from hydraulic stimulation. Natural fractures have been documented to significantly enhance reservoir permeability. This thesis examines the stratigraphic and structural controls on fracture …
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Evaluation of strata conditions and performance of support systems of the Emerald Shaft Gold Mine in Gauteng Province of South Africa
… The incompetency of the rock mass, high tensile fractures, and concentration of horizontal virgin and mining-induced stresses pose significant threats to both safety and production, highlighting the need for effective strata control measures. This study aimed to evaluate the strata …
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A generalized finite element method for the simulation of non-planar three-dimensional hydraulic fracture propagation
Hydraulic fractures are a class of tensile fractures that occur in brittle and quasi-brittle materials due to the injection of a viscous fluid. Hydraulic fractures occur both naturally and created deliberately for engineering applications. In the oil and gas industry, it is a preferred method to …
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Borehole Breakouts in Transversely Isotropic Posidonia Shale
… such as borehole breakouts or drilling induced tensile fractures, may lead to poor cementing of the borehole annulus, difficulties with recording and interpretation of geophysical logs, low directional control and in the worst case the loss of the well. If these problems are not recognized and …
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Propagation of fluid driven fractures in transversely isotropic material
The propagation of fluid driven fractures is used in a number of industrial applications (well stimulation of unconventional reservoirs, development of deep geothermal systems) but also occurs naturally (magmatic dyke intrusion). While the mechanics of hydraulic fractures (HF) in isotropic media is …