Anisotropy thesis

Finally, resistivity anisotropy is compared with Anisotropy thesis anisotropy to reveal useful field correlations. Massachusetts Institute of Technology Date Issued: For every conduct of testing, a pair of identical samples were tested: Furthermore, the calculated permeabilities are less orderly in the l9.

This general behaviour is characteristic of all mudrocks studied. Further decreasing the porosity of RBBC below porosity 0. Theoretical considerations of the transient phase of the experimental record of the constant flow rate permeability test are found to be applicable to form the basis of evaluation of permeability, coefficient of consolidation, and coefficient of volume compressibility of the clay sample.

These models also reveal that the large scale conductivity anisotropy is not equal to the permeability anisotropy, though the relationship identified for uniform mudrocks may still be useful for sites with high measurement resolution.

Data from the constant flow rate and constant head permeability tests yield the same values of permeability for both cases of vertical or radial flow kv not necessarily equal to Kh.

Conventional step-loaded consolidation tests, constant flow rate and some constant head permeability tests were conducted on the kaolin slurry and block samples. Both, however, were subjected to one dimensional deformation in the vertical direction.

Development of permeability anisotropy, however, was somewhat in opposition with that of the slurry sample observed during anisotropic consolidation. Permeability of the clay was evaluated both directly and indirectly, from results of the permeability tests and consolidation tests, respectively.

Permeability anisotropy the ratio of the horizontal to vertical permeability is an important parameter used in sedimentary basin models and geotechnical design to model fluid flow, locate hydrocarbon reserves and estimate stress and pressure evolution.

Permeability anisotropy and resistivity anisotropy of mechanically compressed mudrocks

These relationships were found to be independent of the overconsolidation ratio. The results of the RBBC study are contrasted with additional measurements made using mudrocks covering a range of plasticity, clay fraction and mineralogical composition.

The magnitude of the permeability anisotropy for a given mudrock is difficult to measure; further, whether the permeability anisotropy is a constant value or evolves with the basin state is of active debate. For samples sheared to vertical strains of 2. Massachusetts Institute of Technology. Development of permeability anisotropy is investigated when the sample has experienced: Department of Civil and Environmental Engineering.

This thesis experimentally investigates the development of permeability anisotropy in mechanically compressed mudrocks. The permeability anisotropy predicted using measurements of the mudrock fabric is compared with the measured permeability anisotropy to understand the relationship between fabric evolution and permeability anisotropy.

The permeability anisotropy and the conductivity anisotropy inverse of the resistivity anisotropy of uniform RBBC increase from 1. For samples sheared to vertical strains of 7. A novel measurement method is developed using resedimented cubic specimens. The permeability anisotropy of Resedimented Boston Blue Clay RBBC is systematically measured to determine both the magnitude and evolution of the permeability anisotropy.

The permeability decreases by over one order of magnitude and the formation factor triples over this porosity range.Thesis - Multifunctional Elastomers with Tailored Anisotropic Response - Free ebook download as PDF File .pdf), Text File .txt) or read book online for free.

Traditional engineering design focusses on the load-bearing capabilities of materials, and develops functionality by adding the structure. However, hybridising with functional materials allows non-load bearing capabilities to be.

thesis using waveform modeling of seismic anisotropy to understand the process of proterozoic lithospheric assembly submitted by melinda a solomon. Magneto-optical Kerr Eect Study of Magnetic Anisotropy in Soft Ferromagnets Tatiana Marie Eggers University of South Florida, Tatiana Marie, "Magneto-optical Kerr Eect Study of Magnetic Anisotropy in Soft Ferromagnets" ().Graduate Theses and The remainder of this thesis is organized as follows: In Section 2, the reader.

This thesis is concerned with an investigation into some aspects of the permeability measurement and permeability characteristics of reconstituted saturated supreme kaolin clay.

Some laboratory studies of anisotropy of permeability of kaolin

Development of permeability anisotropy is investigated when the sample has experienced: (1) anisotropic consolidation, and (2) undrained shear. iii MAGNETIC ANISOTROPY OF Fe1-xGax ALLOYS by Sadia Rafique Thesis submitted to the Faculty of the Graduate School of the University of Maryland, College Park in partial fulfillment.

We consider three important geological origins of elastic anisotropy in sedimentary rocks: (a) anisotropy due to shale, (b) anisotropy due to stress and fractures, and (c) anisotropy due to fine laminations.

Additionally, we explore the effect of fluids in modifying the anisotropy resulting from these causes.

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Anisotropy thesis
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