Výsledky vyhledávání - "Leo K. Santos"

Can Hudson-Crampin effective model be applied in cracked medium in which the background is weakly anisotropic (VTI)?

Autor: Bruce F. F. Chiba, Murillo J. S. do Nascimento, J. J. S. de Figueiredo, Leo K. Santos, Carolina B. da Silva

Publikováno v: Journal of Applied Geophysics. 161:255-260

To understand the effect of aligned cracks in a vertical transversely isotropic (VTI) background medium, we measured P- and S-wave velocities of seventeen synthetic anisotropic samples with crack densities ranging from 0.0092 to 0.12 and the crack as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::486aa9e2888b08b9ce5a283b3d23fddc
https://doi.org/10.1016/j.jappgeo.2018.12.007

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On the application of the Eshelby-Cheng effective model in a porous cracked medium with background anisotropy: An experimental approach

Autor: José J. S. de Figueiredo, Emilia Hartmann, Leo K. Santos, Murillo J. S. do Nascimento, Carolina B. da Silva, Bruce F. F. Chiba, Crislene Silva, Matias C. de Sousa

Publikováno v: GEOPHYSICS. 83:C209-C220

Understanding the effect of cracks in elastic media is important for hydrocarbon recovery, especially in nonconventional reservoirs. Consequently, due to the presence of oriented cracks on these types of reservoirs, an anisotropic behavior can be ind

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::730bf04a3ab695031ae33ec72dbecf04
https://doi.org/10.1190/geo2017-0714.1

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Experimental verification of effective anisotropic crack theories in variable crack aspect ratio medium

Autor: Carolina B. da Silva, José J. S. de Figueiredo, Felipe L. Azevedo, Daniel L. Macedo, Icaro Coutinho, Mykel da Silva Sousa, Leo K. Santos, Jessica P. Henriques, Alberto Leandro de Melo

Publikováno v: Geophysical Prospecting. 66:141-156

Physical modelling of cracked/fractured media using downscaled laboratory experiments has been used with great success as a useful alternative for understanding the effect of anisotropy in the hydrocarbon reservoir characterization, and in the crusta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a446c86aa5638197bb60d806d80a43b7
https://doi.org/10.1111/1365-2478.12544

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A new way to construct synthetic porous fractured medium

Autor: Alberto Leandro de Melo, Leo K. Santos, Carolina B. da Silva, José J. S. de Figueiredo, Daniel L. Macedo

Publikováno v: Journal of Petroleum Science and Engineering. 156:763-768

We have developed a new, efficient and feasible methodology of fractured sample construction, based on: cement, sand, styrofoam and paint thinner. The styrofoam cuts (square pieces or penny-shaped cuts) are chemically leached out using solvent. The e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c312ef5438da435e53f049346c537a09
https://doi.org/10.1016/j.petrol.2017.06.044

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On the source-frequency dependence of fracture-orientation estimates from shear-wave transmission experiments

Autor: Leo K. Santos, Jörg Schleicher, Robert R. Stewart, Bode Omoboya, Nikolay Dyaur, J. J. S. de Figueiredo

Publikováno v: Journal of Applied Geophysics. 114:81-100

Shear-wave propagation through anisotropic fractured or cracked media can provide valuable information about these fracture swarms and their orientations. The main goal of this work is to recover information about fracture orientation based on the sh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1430f6c5a88d2c8786e91f5932939295
https://doi.org/10.1016/j.jappgeo.2014.12.018

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