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Showing 1 to 13 of 13 for “"Fracture orientation"”.
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The effect of fracture orientation on permeability
… fluids as high as 10 k psi into rocks to fracture them, and permeability is optimised by inducing complicated fractures into the shale. Previous authors have studied fracturing orientation techniques, however, their work considered only simple fractures. In this work, complicated fractures …
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Azimuthal P-wave AVA Inversion for Fracture Orientation and Density
… the numerical seismic modeling of a simulated fractured medium to analyze variations of seismic reflection amplitudes with incident and azimuthal angles (AVAZ). The intent is to extract the information about the fracture orientation and intensity of a fractured medium. The effective compliance …
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Time-lapse seismic AVAz in the Stocker Field
… to be economically productive. Zones of high fracture density are desired due to the increase in permeability they would have. Thus, fracture characterization is an essential part of production planning in unconventional reservoirs. Amplitude Variation with Offset and Azimuth (AVAz) …
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Physical Modeling and Analysis of Seismic Data from a Simulated Fractured Medium
… the physical seismic modeling of a simulated fractured medium to examine variations of seismic re ection amplitudes with source-receiver o set and azimuth (AVAZ). The intent is to extract information about the fracture orientation and magnitude of the anisotropy of a naturally fractured …
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Laramide stress conditions and deformation mechanisms during the formation of Hudson and Dallas Domes, Lander Quadrangle, Wind River Mountains, Lander, Wyoming
… deformation, collecting and analyzing fault and fracture orientation data, and deducing the folds deformation geometry, folding mechanisms, and associated stresses. Mapping and well log constraints indicate that the geometry of the fold form is a result of local basement involved faulting, …
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Interplay of porous media and fracture stimulation in sedimentary enhanced geothermal systems : Red River Formation, Williston Basin, North Dakota
Fracture stimulated enhanced geothermal systems (EGS) can be installed in both crystalline rocks and sedimentary basins. The Red River Formation (Ordovician), which lies between 3.6 and 4.2 km depth in the Williston Basin, is a viable site for installation of sedimentary EGS (SEGS). SEGS is …
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Estimating scale dependence of saturated hydraulic conductivity in soils
… pore connectivity at small scales (e.g., core), fracture orientation and long-range correlations at large scales (e.g., field). In this study, we apply concepts from percolation theory to estimate the scale dependence of saturated hydraulic conductivity, K_sat. For this purpose, we use a database …
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Brittle-viscous deformation cycles at the base of the seismogenic zone in the continental crust
… deformation. Similarly, the observation from fracture orientation analysis indicates that the mylonitic precursor of BFZ045 played an important role in the localization of the brittle deformation. This thesis highlights that the ductile-brittle deformation cycle in BFZ045 was controlled by …
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Structure Segmentation and Transfer Faults in the Marcellus Shale, Clearfield County, Pennsylvania: Implications for Gas Recovery Efficiency and Risk Assessment Using 3D Seismic Attribute Analysis
… gas reservoir in the oil and gas industry. Fractures within this organic-rich black shale serve as an important component of porosity and permeability useful in enhancing production. Horizontal drilling is the primary approach for extracting hydrocarbons in the Marcellus Shale. Typically, …
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Inversion of azimuthal velocity and amplitude variations for seismic anisotropy
Natural fractures can play a key role in production of hydrocarbon in the form of increased porosity and permeability for efficient fluid flow especially for unconventional reservoirs of low matrix permeability. Thus, knowledge related to fracture orientation and intensity is vital for the …
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Impact of Stress-field Changes Induced by Hydraulic Fracturing on Subsurface Fault Stability
… redistribution around hydraulic fractures can occur due to the opening of hydraulic fractures and poroelastic effects. Only the opening of hydraulic fractures is considered in numerical models. The results indicate that the initial in-situ stress contrast in horizontal plane has a …
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Anisotropy, focal mechanisms, and state of stress in an oilfield : passive seismic monitoring in Oman
… of the spatial characteristics of stress and fractures in reservoirs is important for optimising production and injection processes. Serni-permanent passive microseismic monitoring is being conducted in the Yibal field, Oman, to better understand reservoir geomechanics. The network comprises …
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Linear Trend Analysis: Implications for a Structural Fracture System and Applications of Subsurface Fluid Migration, Northwest Arkansas and Eastern Oklahoma
… reflect subsurface phenomenon such as faults and fractures. The usage of the term refers to the description Lattman published in 1958 and was the foundation for work by MacDonald in 1977, which is the basis for this project. Remote sensing techniques have provided a valuable means to analyze …