Models In LWD Applications
A model for a fluid-filled borehole with an LWD tool is used to identify and analyze the monopole, dipole, and quadrupole modes that are present. The modes can be classified into three groups and have dispersion behavior that is influenced predominantly by the geometry and material properties of...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Technical Report |
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Massachusetts Institute of Technology. Earth Resources Laboratory
2012
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| Online Access: | http://hdl.handle.net/1721.1/75419 |
| _version_ | 1811093978843447296 |
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| author | Rao, V. N. Rama Burns, Daniel R. Toksoz, M. Nafi |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Rao, V. N. Rama Burns, Daniel R. Toksoz, M. Nafi |
| author_sort | Rao, V. N. Rama |
| collection | MIT |
| description | A model for a fluid-filled borehole with an LWD tool is used to identify and analyze the
monopole, dipole, and quadrupole modes that are present. The modes can be classified
into three groups and have dispersion behavior that is influenced predominantly by
the geometry and material properties of the three borehole layers (inner fluid column,
tool, and annulus fluid column). However, this simple dependence gets complicated
in regions of the frequency-wavenumber plane, where modes related to different layers
interact and exchange their dispersion characteristics. The dipole modes exhibit the
effects of interaction below 2 kHz and above 20 kHz. |
| first_indexed | 2024-09-23T15:53:41Z |
| format | Technical Report |
| id | mit-1721.1/75419 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T15:53:41Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/754192019-04-10T23:57:06Z Models In LWD Applications Rao, V. N. Rama Burns, Daniel R. Toksoz, M. Nafi Massachusetts Institute of Technology. Earth Resources Laboratory Rao, V. N. Rama Burns, Daniel R. Toksoz, M. Nafi A model for a fluid-filled borehole with an LWD tool is used to identify and analyze the monopole, dipole, and quadrupole modes that are present. The modes can be classified into three groups and have dispersion behavior that is influenced predominantly by the geometry and material properties of the three borehole layers (inner fluid column, tool, and annulus fluid column). However, this simple dependence gets complicated in regions of the frequency-wavenumber plane, where modes related to different layers interact and exchange their dispersion characteristics. The dipole modes exhibit the effects of interaction below 2 kHz and above 20 kHz. Massachusetts Institute of Technology. Borehole Acoustics and Logging Consortium Massachusetts Institute of Technology. Earth Resources Laboratory. Reservoir Delineation Consortium 2012-12-12T18:09:23Z 2012-12-12T18:09:23Z 1999 Technical Report http://hdl.handle.net/1721.1/75419 Earth Resources Laboratory Industry Consortia Annual Report;1999-05 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Rao, V. N. Rama Burns, Daniel R. Toksoz, M. Nafi Models In LWD Applications |
| title | Models In LWD Applications |
| title_full | Models In LWD Applications |
| title_fullStr | Models In LWD Applications |
| title_full_unstemmed | Models In LWD Applications |
| title_short | Models In LWD Applications |
| title_sort | models in lwd applications |
| url | http://hdl.handle.net/1721.1/75419 |
| work_keys_str_mv | AT raovnrama modelsinlwdapplications AT burnsdanielr modelsinlwdapplications AT toksozmnafi modelsinlwdapplications |