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.
Results
Showing 1 to 20 of 21 for “"matrix permeability"”.
-
Analytical and Numerical Modelling of Thermal Conductive Heating in Fractured Rock
… were run for different combinations of bulk permeability, fracture spacing, matrix permeability, and matrix porosity. Flow concentration in fractures had a significant effect on treatment zone temperature distributions when bulk permeability was high. For low values of bulk permeability, the …
-
Gas Shale Permeability and Velocity Measurement at Laboratory Scale
Matrix permeability of gas shales is a crucial parameter for their characterization, production potential, and commercial development. Gas shales are an important reservoir type from an economic perspective because of their potential to hold large volume reserves and produce economically over time. …
-
Heat pipe effect in porous medium
… conducted. The effects of different fracture and matrix properties including permeability, thermal conductivity, specific heat, porosity, and tortuosity on heat pipe performance in the vicinity of the waste package were observed. Computer simulations were carried out using TOUGH code on a Cray …
-
Integrated Experimental Characterization of the Lower Huron Shale in the Central Appalachian Basin
… Huron shale in the central Appalachian Basin, matrix permeability, Raman spectroscopy, Fourier Transform infrared spectroscopy (FTIR), and atomic force microscopy (AFM) were used in this study. According to the experimental results, matrix permeability is relatively high for a shale gas …
-
Computational fluid dynamics modelling of fluid flow inside fractured reservoirs.
… of two distinct media sharing the same location: matrix and fracture, which affect each other's flow. Both have heterogeneous properties, such as anisotropic matrix permeability and rough fracture surfaces; also, fractures have varied orientation angles and exist in fractured formations in either …
-
Study of the Effect of Fracture Completion Variables on Decline Curve Parameters for Long-Term Production Forecast of Shale Liquids
… fracture spacing, stimulated reservoir volume permeability and matrix permeability.
-
History matching sensitivity investigations and forecasting for low matrix porosity, permeability and highly fractured carbonate reservoir to optimize oil production in Kurdistan Region
… highly fractured carbonate reservoirs with low matrix porosity and low matrix permeability in the world have been depleted with low ultimate recovery due to the improper management. To obtain higher oil recovery and an optimum oil production, a three dimensional geological model for the …
-
Plugging performance of preformed particle gels in fractures and its influencing factors
… to study the effect of fracture dimensions, matrix permeability, and residual oil on the PPG behaviors in partially open fractures. The dehydration of placed PPG positively related to the placement volume in fracture volume. Third, a novel CO<sub>2</sub>-responsive preformed particle gel …
-
Simulating Remediation of Trichloroethylene in Fractured Bedrock by Thermal Conductive Heating Using the Numerical Model TMVOC
… model to investigate TCE removal from the rock matrix when heating for 100 days with a similar heating pattern to what was employed at the NAWC site. The numerical domain incorporated three primary fractures with competent bedrock in between. As the test pilot was conducted in the weathered …
-
Optimization of chemical enhanced oil recovery methods for naturally fractured carbonate reservoirs
… highly permeable fractures and bypasses the rock matrix, where most of the oil is stored. Mixed-wettability, low matrix permeability, and large heterogeneities also make secondary oil recovery challenging. Chemical enhanced oil recovery with alkali, surfactants, and polymer addresses some of these …
-
Implications of Permeability Uncertainty During Three-phase CO2 Flow in a Basalt Fracture Network
… short time-scales. Flood basalts also possess a permeability structure favorable for injection, with alternating high-permeability (flow margin) and low-permeability (flow interior) layers. However, little information exists on the behavior of CO₂ as it leaks through fractures characteristic of …
-
Acid Fracture and Fracture Conductivity Study of Field Rock Samples
… but likely was a function of inherent matrix permeability based on leak-off measurements and fracture conductivity measurements. Finally, the fracture conductivity of Sample D increased after exposure to a chelating agent. Commonly, acid fracture experimental studies are carried out …
-
Experimental investigation of imbibition in oil-wet carbonates under low IFT conditions
… fractured carbonate reservoirs with an oil-wet matrix generate very low oil production. Surfactants enhance oil recovery in these reservoirs by altering wettability and reducing interfacial tension (IFT). The main purpose of this research was to determine how to scale up low IFT surfactant …
-
Investigation of post hydraulic fracturing well cleanup physics in the Cana Woodford shale
… days' gas and water producing rates. Reservoir matrix permeability, net pressure, Young's modulus, and formation pressure gradient were found to have an impact on the gas producing curve's shape, in different ways. Some moderately good matches were achieved, with the outcome of some unknown …
-
Inversion of azimuthal velocity and amplitude variations for seismic anisotropy
… 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 development of unconventional hydrocarbon reservoirs, such as …
-
Production Analysis and Enhancement in The Unconventional Tight Formations
… to improve early-time production by remediating permeability damage caused during stimulation in fracture and near fracture matrix is introduced. The fracturing fluid leak-off can damage the fracture conductivity and near-fracture matrix permeability, and consequently impair the well productivity …
-
An experimental study on characterization of physical properties of ultramafic rocks and controls on evolution of fracture permeability during serpentinization at hydrothermal conditions
… fracture, to investigate evolution of fracture permeability during serpentinization. The samples were tested in a triaxial loading machine at an effective pressure of 30 MPa, and temperature of 260°C, simulating a depth of 2 km under hydrostatic conditions. Fracture permeability decreased by one …
-
Analysis and modeling of coupled thermo-hydro-mechanical phenomena in 3D fractured media = Análisis y modelización de fenómenos acoplados termo-hidro-mecánicos en medio fracturado
… we develop a method to estimate the equivalent permeability of a many-fractured block by extending the superposition method of Ababou et al. [1994] to the case where the permeability of the rock matrix is not negligible (matrix permeability may embody some finer fracturing in addition to pore …
-
Fabrication and Characterization of Polyimide-based Mixed Matrix Membranes for Gas Separations
A series of mixed matrix membranes based on zeolites incorporated into fluorinated polyimides were fabricated and characterized in this study. The first system consisted of a polyimide (6FDA-6FpDA-DABA) with carboxylic acid groups incorporated into its backbone and amine-functionalized zeolite …
-
Computer-Aided Formulation of Magnetic Pastes for Magnetic Components in Power Electronics
… in the literature suffer from low relative permeability (µr < 26) due to the low magnetic fraction limited by viscosity. The conventional approach of developing magnetic pastes involves experimental iterations with trial-and-error efforts to determine the optimal compositions. To shorten the …
Page 1 of 2