Publicação
Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations
| Resumo: | Abstract In this paper we present an efficient mode-matching technique to analyze tilted-coil antennas in anisotropic geophysical formations. In this problem, a number of coil antennas with arbitrary relative tilt angle with respect to the symmetry axis are used to radiate electromagnetic fields in a cylindrically layered medium comprised of a metallic mandrel, a borehole, and a surrounding layered Earth formation. This configuration corresponds to that of directional well-logging tools used in oil and gas exploration. Our technique combines closed-form solutions for the Maxwell's Equations in uniaxially anisotropic and radially-stratified cylindrical coordinates with the generalized scattering matrix (GSM) at each axial discontinuity based on the modematching technique. The field from the transmitter tilted-coil source is represented by a set of modal coefficients which, after computation using GSM matrices, are used to compute the transimpedances. We present validation results which show that our technique can efficiently model directional well-logging tools used for oil and gas exploration. |
|---|---|
| Autores principais: | Rosa,Guilherme S. |
| Outros Autores: | Bergmann,José R.; Teixeira,Fernando L. |
| Assunto: | Anisotropic media mode matching methods stratified media well logging tools |
| Ano: | 2017 |
| País: | Brasil |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | IBICT |
| Idioma: | inglês |
| Origem: | Oasisbr |
| _version_ | 1871506989936279552 |
|---|---|
| author | Rosa,Guilherme S. |
| author2 | Bergmann,José R. Teixeira,Fernando L. |
| author2_role | author author |
| author_facet | Rosa,Guilherme S. Bergmann,José R. Teixeira,Fernando L. |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"Rosa,Guilherme S.\"},{\"Person.name\":\"Bergmann,José R.\"},{\"Person.name\":\"Teixeira,Fernando L.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Rosa,Guilherme S. Bergmann,José R. Teixeira,Fernando L. |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Anisotropic media mode matching methods stratified media well logging tools |
| datacite.titles.title.fl_str_mv | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| dc.creator.none.fl_str_mv | Rosa,Guilherme S. Bergmann,José R. Teixeira,Fernando L. |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742017000100284 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Journal of Microwaves, Optoelectronics and Electromagnetic Applications v.16 n.1 2017 reponame:Journal of Microwaves. Optoelectronics and Electromagnetic Applications instname:Sociedade Brasileira de Microondas e Optoeletrônica (SBMO) instacron:SBMO |
| dc.subject.none.fl_str_mv | Anisotropic media mode matching methods stratified media well logging tools |
| dc.title.fl_str_mv | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Abstract In this paper we present an efficient mode-matching technique to analyze tilted-coil antennas in anisotropic geophysical formations. In this problem, a number of coil antennas with arbitrary relative tilt angle with respect to the symmetry axis are used to radiate electromagnetic fields in a cylindrically layered medium comprised of a metallic mandrel, a borehole, and a surrounding layered Earth formation. This configuration corresponds to that of directional well-logging tools used in oil and gas exploration. Our technique combines closed-form solutions for the Maxwell's Equations in uniaxially anisotropic and radially-stratified cylindrical coordinates with the generalized scattering matrix (GSM) at each axial discontinuity based on the modematching technique. The field from the transmitter tilted-coil source is represented by a set of modal coefficients which, after computation using GSM matrices, are used to compute the transimpedances. We present validation results which show that our technique can efficiently model directional well-logging tools used for oil and gas exploration. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | oasisbr_e6934c61a40dc5ff81bfb1593db251d8 |
| identifier.url.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742017000100284 |
| inst_facet_str | urn:organizationAcronym:oasisbr{{{_:::_}}}IBICT |
| instacron_str | OASISBR |
| institution | IBICT |
| instname_str | IBICT |
| language | eng |
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| network_name_str | Oasisbr |
| oai_identifier_str | oai:scielo:S2179-10742017000100284 |
| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | Rosa,Guilherme S. Bergmann,José R. Teixeira,Fernando L. |
| publishDate | 2017 |
| publisher.none.fl_str_mv | Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo |
| repo_facet_str | urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr |
| reponame_str | Oasisbr |
| repository_id_str | urn:repositoryAcronym:oasisbr |
| service_str_mv | urn:repositoryAcronym:oasisbr |
| spelling | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical FormationsRosa,Guilherme S.Bergmann,José R.Teixeira,Fernando L.Anisotropic mediamode matching methodsstratified mediawell logging toolsopen accesshttp://purl.org/coar/access_right/c_abf2http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742017000100284URLhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742017000100284URLHasVersion2017-03-01Abstract In this paper we present an efficient mode-matching technique to analyze tilted-coil antennas in anisotropic geophysical formations. In this problem, a number of coil antennas with arbitrary relative tilt angle with respect to the symmetry axis are used to radiate electromagnetic fields in a cylindrically layered medium comprised of a metallic mandrel, a borehole, and a surrounding layered Earth formation. This configuration corresponds to that of directional well-logging tools used in oil and gas exploration. Our technique combines closed-form solutions for the Maxwell's Equations in uniaxially anisotropic and radially-stratified cylindrical coordinates with the generalized scattering matrix (GSM) at each axial discontinuity based on the modematching technique. The field from the transmitter tilted-coil source is represented by a set of modal coefficients which, after computation using GSM matrices, are used to compute the transimpedances. We present validation results which show that our technique can efficiently model directional well-logging tools used for oil and gas exploration.engtext/htmlSociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de EletromagnetismoJournal of Microwaves, Optoelectronics and Electromagnetic Applications v.16 n.1 2017reponame:Journal of Microwaves. Optoelectronics and Electromagnetic Applicationsinstname:Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)instacron:SBMOjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations Rosa,Guilherme S. Anisotropic media mode matching methods stratified media well logging tools |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | Anisotropic media mode matching methods stratified media well logging tools |
| title | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| title_full | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| title_fullStr | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| title_full_unstemmed | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| title_short | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| title_sort | Pseudo-Analytical Modeling of Tilted-Coil Antennas in Anisotropic Geophysical Formations |
| topic | Anisotropic media mode matching methods stratified media well logging tools |
| topic_facet | Anisotropic media mode matching methods stratified media well logging tools |
| url | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742017000100284 |
| visible | 1 |
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