Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids
This paper reports the results of the propagation of P-waves in porous media, simulated by solving the generalized Biot´s equations in finite differences. In saturated models, it was observed that when a wave advances, the maximum amplitude of the spectrum is shifted to lower frequencies, and that t...
- Autores:
-
Duitama Leal, Alejandro
Almanza, Ovidio
Montes Vides, Luis Alfredo
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/60483
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/60483
http://bdigital.unal.edu.co/58815/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Biot theory
attenuation
viscosity
saturation
porosity
Teoría de Biot
atenuación
viscosidad
saturación
porosidad
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
id |
UNACIONAL2_c2ff96f82eb589f7e8c3fd2cf023cccd |
---|---|
oai_identifier_str |
oai:repositorio.unal.edu.co:unal/60483 |
network_acronym_str |
UNACIONAL2 |
network_name_str |
Universidad Nacional de Colombia |
repository_id_str |
|
spelling |
Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Duitama Leal, Alejandro50c76b3f-de94-4551-9273-ef5746691eea300Almanza, Ovidio5274dd28-d6e5-4157-a458-87e35d64c650300Montes Vides, Luis Alfredoeae789a9-2910-4a2d-b6b2-c2853daa2d103002019-07-02T18:25:25Z2019-07-02T18:25:25Z2016-10-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60483http://bdigital.unal.edu.co/58815/This paper reports the results of the propagation of P-waves in porous media, simulated by solving the generalized Biot´s equations in finite differences. In saturated models, it was observed that when a wave advances, the maximum amplitude of the spectrum is shifted to lower frequencies, and that this maximum amplitude and its frequency are directly related. Besides this, the quality factor decreases with porosity and saturation. Hence, attenuation becomes higher when porosity, saturation, and frequency increase but tends asymptotically towards a constant value. Although phase analysis is generally discarded, it does provide interesting results. It was noted that the wave phase changes linearly with frequency at a rate of change that increases linearly with travel time. This rate increases with saturation but decreases slightly with porosity. This work ignores spherical divergence or scattering and concentrates on intrinsic attenuation caused by friction, particularly between fluids and solid particles.Este artículo reporta resultados de la propagación de ondas P en medios porosos, simulada solucionando en diferencias finitas las ecuaciones generalizadas de Biot. En modelos saturados se observó que cuando avanza la onda, la amplitud máxima del espectro se desplaza hacia frecuencias menores, y que esta amplitud máxima y su frecuencia están directamente relacionadas. Además, que el factor de calidad disminuye con la porosidad y la saturación. Por ende, la atenuación aumenta con la porosidad, la saturación y la frecuencia pero tiende asintóticamente a un valor constante. Se observó que la fase de la onda cambia linealmente con la frecuencia a una rata de cambio que aumenta linealmente con el tiempo de viaje. Esta rata aumenta con la saturación pero disminuye ligeramente con la porosidad. Este trabajo ignora la divergencia esférica y la retro dispersión, concentrándose en la atenuación intrínseca causada por la fricción, en particular entre líquido y partículas sólidas.application/pdfspaUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.https://revistas.unal.edu.co/index.php/dyna/article/view/56238Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDuitama Leal, Alejandro and Almanza, Ovidio and Montes Vides, Luis Alfredo (2016) Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids. DYNA, 83 (199). pp. 78-85. ISSN 2346-218362 Ingeniería y operaciones afines / EngineeringBiot theoryattenuationviscositysaturationporosityTeoría de BiotatenuaciónviscosidadsaturaciónporosidadModeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluidsArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL56238-309942-1-PB.pdfapplication/pdf1233989https://repositorio.unal.edu.co/bitstream/unal/60483/1/56238-309942-1-PB.pdf48adc1d7834e5cfb4c73fa11f7a586c7MD51THUMBNAIL56238-309942-1-PB.pdf.jpg56238-309942-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9078https://repositorio.unal.edu.co/bitstream/unal/60483/2/56238-309942-1-PB.pdf.jpg0b90536089de664c2a3b6ba9a4a795cdMD52unal/60483oai:repositorio.unal.edu.co:unal/604832023-04-07 23:04:31.103Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
title |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
spellingShingle |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids 62 Ingeniería y operaciones afines / Engineering Biot theory attenuation viscosity saturation porosity Teoría de Biot atenuación viscosidad saturación porosidad |
title_short |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
title_full |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
title_fullStr |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
title_full_unstemmed |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
title_sort |
Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids |
dc.creator.fl_str_mv |
Duitama Leal, Alejandro Almanza, Ovidio Montes Vides, Luis Alfredo |
dc.contributor.author.spa.fl_str_mv |
Duitama Leal, Alejandro Almanza, Ovidio Montes Vides, Luis Alfredo |
dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
topic |
62 Ingeniería y operaciones afines / Engineering Biot theory attenuation viscosity saturation porosity Teoría de Biot atenuación viscosidad saturación porosidad |
dc.subject.proposal.spa.fl_str_mv |
Biot theory attenuation viscosity saturation porosity Teoría de Biot atenuación viscosidad saturación porosidad |
description |
This paper reports the results of the propagation of P-waves in porous media, simulated by solving the generalized Biot´s equations in finite differences. In saturated models, it was observed that when a wave advances, the maximum amplitude of the spectrum is shifted to lower frequencies, and that this maximum amplitude and its frequency are directly related. Besides this, the quality factor decreases with porosity and saturation. Hence, attenuation becomes higher when porosity, saturation, and frequency increase but tends asymptotically towards a constant value. Although phase analysis is generally discarded, it does provide interesting results. It was noted that the wave phase changes linearly with frequency at a rate of change that increases linearly with travel time. This rate increases with saturation but decreases slightly with porosity. This work ignores spherical divergence or scattering and concentrates on intrinsic attenuation caused by friction, particularly between fluids and solid particles. |
publishDate |
2016 |
dc.date.issued.spa.fl_str_mv |
2016-10-01 |
dc.date.accessioned.spa.fl_str_mv |
2019-07-02T18:25:25Z |
dc.date.available.spa.fl_str_mv |
2019-07-02T18:25:25Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.issn.spa.fl_str_mv |
ISSN: 2346-2183 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/60483 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/58815/ |
identifier_str_mv |
ISSN: 2346-2183 |
url |
https://repositorio.unal.edu.co/handle/unal/60483 http://bdigital.unal.edu.co/58815/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/dyna/article/view/56238 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
dc.relation.references.spa.fl_str_mv |
Duitama Leal, Alejandro and Almanza, Ovidio and Montes Vides, Luis Alfredo (2016) Modeling attenuation and dispersion of acoustic waves in porous media containing immiscible non viscous fluids. DYNA, 83 (199). pp. 78-85. ISSN 2346-2183 |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.spa.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas. |
institution |
Universidad Nacional de Colombia |
bitstream.url.fl_str_mv |
https://repositorio.unal.edu.co/bitstream/unal/60483/1/56238-309942-1-PB.pdf https://repositorio.unal.edu.co/bitstream/unal/60483/2/56238-309942-1-PB.pdf.jpg |
bitstream.checksum.fl_str_mv |
48adc1d7834e5cfb4c73fa11f7a586c7 0b90536089de664c2a3b6ba9a4a795cd |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositorio Institucional Universidad Nacional de Colombia |
repository.mail.fl_str_mv |
repositorio_nal@unal.edu.co |
_version_ |
1814090043672756224 |