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 15 of 15 for “"Permeability measurement"”.
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Research about low permeability measurement
… is challenging because of the low porosity and permeability. It is imperative to investigate permeability of the shale formations in order to better understand the performance of wells that are producing hydrocarbons from shale. Permeability is also one of key parameters in modeling fluids flow …
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LABORATORY-SCALE INVESTIGATION OF PERMEABILITY AND FLOW MODELING FOR HIGHLY STRESSED COALBED METHANE RESEROVIRS USING PULSE DECAY METHOD
… steady flow method (SFM), most commonly used for permeability measurement in the laboratory, is not applicable for tight rocks, higher rank coals and coals under highly stressed condition because of the difficulty in measuring steady-state gas flowrates resulting from the tight rock structure of. …
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Microstruture & High Frequency Property of Fe- & Co- Based Nano-Grain Thin Films
… it is essential to measure the high frequency permeability and understand the electromagnetic properties that can control the high frequency permeability. In this research, the permeability measurement method at high frequency for soft magnetic thin films was investigated; some Fe- and Co-based …
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Scaffold Permeability as a Means to Determine Fiber Diameter and Pore Size of Electrospun Fibrinogen
… that could accurately measure the hydraulic permeability of electrospun fibrinogen scaffolds, providing insight into the transport properties of electrospun scaffolds while making the measurement of their topographical features (fiber and pore size) more accurate. Three different …
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A model of the formation of a porous fibrous cake
… at discrete points along the screen. A permeability measurement test apparatus was designed and built, and experiments were run to determine the experimental relations for two different materials. A computer code was then written to solve the system of equations at each point on the …
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Bulk and Interfacial Effects on Density in Polymer Nanocomposites
… much promise. The magnitude of the benefit on permeability has been different depending on the polymer investigated or the degree of dispersion of the platelet in the polymer. In this dissertation, the effect of density changes in the bulk and at the polymer-platelet interface on permeability …
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Investigation of fluids flow behavior in nano-scale channels by using optic imaging system
… optimization and calculations of the relative permeability of gas in tight shale gas systems. In this work, a lab-on-chip approach for direct visualization of the fluid flow behavior in nano-scale channels was developed using an advanced epi-fluorescence microscopy method combined with a …
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Measurement of retinal vascular permeability in a rat model using spectroscopic optical coherence tomography
… hardware, different OCT methods for functional measurements, such as Doppler OCT for quantifying blood flow and generating angiography using OCT phase information, polarization sensitive OCT for measuring intrinsic mechanical / optical tissue property using light of different polarizations, and …
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Verification of a three-dimensional resin transfer molding process simulation model
… and viscosity models, as well as preform permeability and compaction models. The steady-state and advancing front permeability measurement methods are compared. The results indicate that both methods yield similar permeabilities for a plain weave, bi-axial fiberglass fabric. Also, a method …
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Application of Raman Spectroscopy and Transmission Spectroscopy for Shale Reservoir Characterization: Thermal Maturity Correlation and Organic Matter Type Differentiation
… solid bitumen reflectance, etc.) and geochemical measurements (e.g., Rock-Eval T-Max) all reported as %Ro or an equivalent %Ro. Recently, with advances in hydraulic fracturing and horizontal drilling, shale formations have become of economic importance as unconventional reservoirs. As a result, in …
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Experiments Concerning the Commercial Extraction of Methane from Coalbed Reservoirs
… agent was investigated in a series of permeability tests. These measurements were made using a radial flow technique developed specifically for this research project. The results of the tests using liquid carbon dioxide to enhance the permeability of coal samples, to methane gas, …
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Investigation of the high-frequency effects in Mn-Zn ferrites for EMI filter applications
… of Mn-Zn ferrites up to 20 MHz. Complex permeability and permittivity, as well as specific power loss, are typically provided as one value by the manufacturer, regardless of the core shape and size. Therefore, various magnetic materials are characterized for their complex permeability and …
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Dry reforming of associated natural gas using catalytic membrane reactors.
… thermal structure, pore size distribution, gas permeability and chemical structure of such Hybrid Ceramic Membranes (HCMs) were characterised using various methods, including gas permeability measurement, Scanning Electronic Microscopy (SEM), Accelerated Surface Area and Porosimetry analysis …
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Wool fabric plasma treatment: resulting properties evaluation and applications in field
… analyses, wettability tests, air and water vapor permeability measurement, tensile strength and low-stress mechanical properties test were selected to characterize and evaluate textile modifications carried out by plasma. Additionally, also the transformation mechanisms are enlightened. Chapter …
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An experimental investigation of some capillary pressure-relative permeability correlations for sandstone reservoir rocks.
The water-oil relative permeability of the reservoir rock is one of the essential properties in petroleum engineering studies, and the use of this data is critical in the evaluation and management of oil fields, particularly in water flooding predictions and oil recovery calculations. The …